Organization
Faculty of Environmental, Life, Natural Science and Technology Assistant Professor
Position
Assistant Professor
External link
SHINONAGA Togo
Degree
Degree
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博士(工学) ( 大阪大学 )
Research Interests
Research Interests
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Additive Manufacturing
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積層造形
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Laser Processing
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Electron Beam Machining
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電子ビーム加工
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レーザ加工
Research Areas
Research Areas
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Manufacturing and production engineering
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Nanotechnology/Materials / Material processing and microstructure control
Education
Education
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Osaka University 大学院工学研究科 マテリアル生産科学専攻
2011.4 - 2014.3
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Country： Japan
Research History
Research History
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Okayama University Faculty of Environment, Life, Natural Science and Technology Assistant Professor
2023.4
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Country：Japan
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Okayama University Faculty of Natural Science and Technology Assistant Professor
2021.4 - 2022.4
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Country：Japan
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Okayama University Graduate School of Natural Science and Technology Assistant Professor
2015.4 - 2021.3
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Country：Japan
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Postdoctoral Fellowships of Japan Society for the Promotion of Science Joining and Welding Research Institute, Osaka University
2013.4 - 2015.3
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Country：Japan
Professional Memberships
Professional Memberships
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Institute of Electrical Engineers of Japan
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Japan Laser Processing Society
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Japan Welding Society
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The Japan Society of Applied Physics
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The Laser Society of Japan
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The Japan Society of Mechanical Engineers
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Japan Society for Precision Engineering
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Japan Society of Electrical-Machining Engineers
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Committee Memberships
Committee Memberships
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広報委員
2025.4
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Committee type：Academic society
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公益社団法人精密工学会中国四国支部 幹事
2025.3
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Committee type：Academic society
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公益社団法人精密工学会中国四国支部 商議員
2022.3 - 2025.3
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Committee type：Academic society
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公益社団法人精密工学会 アフィリエイト委員
2018.3 - 2024.3
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Committee type：Academic society
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一般社団法人電気学会 電気学会電子材料技術委員会 幹事
2015.12
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Committee type：Academic society
Papers
Papers
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Improvement of anodic oxide film characteristics of Al-Cu alloy by refinement of IMCs with large-area electron beam irradiation Reviewed International journal
T. Shinonaga, A. Sebe, M. Taniguchi, T. Fujii, A. Okada
CIRP Annals - Manufacturing Technology in press 2025.4
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Development of Side Wall Surface Smoothing Method by Large-area Electron Beam Irradiation Reviewed
Togo Shinonaga, Jiayu Lu, Akira Okada
International Journal of Electrical Machining ( 30 ) in press 2025.3
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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A Comparison of Weldability and Mechanical Properties of Additive Manufactured and Bulk Ti6Al4V Alloy Reviewed International coauthorship International journal
E. T. Akinlabi, P. O. Omoniyi, R. M. Mahamood, N. Arthur, S. Pityana, S. Skhosane, Y. Okamoto, T. Shinonaga, M. R. Maina, S. A. Akinlabi, T. C. Jen
Advanced Structured Materials 69 - 79 2024.11
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Language：English Publishing type：Part of collection (book) Publisher：Springer Nature Switzerland
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Study on Surface Smoothing of Metal Lattice Structures by Large area Electron Beam Irradiation Method Reviewed
Seiya Miura, Togo Shinonaga, Atsushi Yamaguchi, Akira Okada
Proceedings of The 20th International Conference on Precision Engineering OS09-09 2024.10
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Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Highly Efficient Surface Smoothing of AMed Metal Products by Long-pulse Electron Beam Irradiation Reviewed
Xuze Zhao, Togo Shinonaga, Akira Okada
Proceedings of The 20th International Conference on Precision Engineering OS09-25 2024.10
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Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Study on Surface Topography and Properties of Additively Manufactured Martensitic Stainless Steel Products Reviewed International journal
Yuki Matsuda, Togo Shinonaga, Atsushi Yamaguchi, Akira Okada
Proceedings of The 5th International Conference on Machining, Materials and Mechanical Technologies (IC3MT2024) 322 - 323 2024.9
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Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Effect of Cooling Rate Control on Surface Modified Layer of Al-Cu Alloy by Large-area EB Irraadiation Reviewed International journal
Ayano Sebe, Togo Shinonaga, Akira Okada
Proceedings of The 5th International Conference on Machining, Materials and Mechanical Technologies (IC3MT2024) 52 - 53 2024.9
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Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Study on Surface Smoothing of Ceramics by Large-area Electron Beam Irradiation Reviewed
Ryoji Kitada, Togo Shinonaga, Akira Okada
International Journal of Electrical Machining ( 29 ) 35 - 35 2024.3
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Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electrical Machining Engineers
DOI： 10.2526/ijem.29.35
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Yasuhiro Okamoto, Togo Shinonaga, Akira Okada
International Journal of Electrical Machining ( 29 ) 20 - 20 2024.3
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Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electrical Machining Engineers
DOI： 10.2526/ijem.29.20
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Application of large-area electron beam irradiation to micro-edge filleting Reviewed International journal
Togo Shinonaga, Hibiki Tajima, Yasuhiro Okamoto, Akira Okada
Journal of Manufacturing Processes 107 65 - 73 2023.12
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Surface smoothing of additively manufactured Ti-6Al-4V alloy by combination of grit blasting and large-area electron beam irradiation Reviewed International journal
Togo Shinonaga, Hiroya Kobayashi, Akira Okada, Toshiya Tsuji
The International Journal of Advanced Manufacturing Technology 127 5127 - 5137 2023.7
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
Abstract
Additively manufactured (AMed) titanium products are typically produced by electron beam melting (EBM), since oxidation of titanium alloy surface can be suppressed in vacuum environment. The surface roughness of AMed titanium products becomes more than 200 µm Rz, and the very rough surface would lead to reduction in fatigue strength. Therefore, a post surface finishing process is required. Abrasive blasting is one of the common surface smoothing processes of AMed metal products. Large surface roughness can be decreased, and compressive residual stress can be introduced to the surface. However, there is a limitation to reduction of surface roughness to several µm Rz. On the other hand, it was recently found that AMed metal surface produced by powder bed fusion with laser beam could be smoothed by large-area electron beam (LEB) irradiation. However, it is difficult to smooth surface with large initial surface roughness, and a tensile residual stress may be generated on the surface. In this study, surface smoothing and change in residual stress of AMed titanium alloy (Ti-6Al-4V) were proposed by combination of grit blasting and LEB irradiation. Surface roughness of AMed Ti-6Al-4 V alloy significantly decreases from 265 to about 2.0 µm Rz by combination of grit blasting and LEB irradiation. Reduction rate of surface roughness by LEB irradiation linearly increases with decreasing mean width of blasted surface. Influence of the mean width on smoothing effect by LEB irradiation can be explained by thermo-fluid analysis. Moreover, tensile residual stress caused by LEB irradiation can be reduced when LEB is irradiated to blasted surface.DOI： 10.1007/s00170-023-11857-5
Other Link： https://link.springer.com/article/10.1007/s00170-023-11857-5/fulltext.html
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Study on joint characteristics in laser butt welding of AMed and wrought Ti6Al4V plates Invited Reviewed International coauthorship International journal
Yasuhiro Okamoto, Togo Shinonaga, Yoshito Takemoto, Akira Okada, Akihiro Ochi, Ryuya Kishimoto, Sisa Pityana, Nana Arthur, Peter Omoniyi, Rasheedat Mahamood, Martin Maina, Esther Akinlabi
Welding in the World 67 1997 - 2005 2023.6
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Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
Abstract
Titanium alloy Ti6Al4V has been widely applied to medical, automotive, and aerospace industries due to its excellent properties such as high strength and excellent corrosion resistance. On the other hand, additive manufacturing (AM) technology can give the freedom of design of the products. In order to spread the AMed products, the joining of AMed and wrought products are required, and it is important to understand the joint characteristics. In this study, butt welding of Ti6Al4V plate was conducted by fiber laser in argon shielding, and the joint characteristics of laser weld wrought/wrought, AMed/AMed, and AMed/wrought Ti6Al4V plates were experimentally investigated. The AMed plate has higher tensile strength than wrought plate but the elongation of AMed plate is smaller, since AMed plate has α’ martensite due to rapid cooling during laser irradiation in AM process. Then, the laser weld joint of AMed/AMed plates has higher tensile strength, but smaller elongation than that of wrought/wrought plates. The weld joint of AMed/wrought plates shows good welding state, since small heat input leads to formation of small weld bead with higher hardness between wrought and AMed plates.DOI： 10.1007/s40194-023-01533-3
Other Link： https://link.springer.com/article/10.1007/s40194-023-01533-3/fulltext.html
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Improvement in Mechanical Properties of AMed Al-Si Alloy Surface by Large-area EB Irradiation Reviewed
Togo Shinonaga, Hiroya Kobayashi, Atsuhi Yamaguchi, Akira Okada
International Journal of Electrical Machining ( 28 ) 20 - 25 2023.3
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal)
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Mo-rich layer formation on maraging steel and surface modification by large-area electron beam irradiation Reviewed International journal
Togo Shinonaga, Shun Watanabe, Atsushi Yamaguchi, Akira Okada
Journal of Materials Processing Technology 311 117813 - 117813 2023.1
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Investigation on Mechanism of Edge Shape Change in Large-area Electron Beam Irradiation by Thermo-fluid Analysis Reviewed International journal
Hibiki Tajima, Togo Shinonaga, Akira Okada
Proceedings of 4th International Conference on Machining, Materials and Mechanical Technologies IC3MT2022 No.25 2022.11
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Improvement of Anodic Oxide Film Characteristics of Al-Cu Alloy by Large-area Electron Beam Reviewed
Ikuya Miyamoto, Togo Shinonaga, Akira Okada
Proceeding of The 19th International Conference on Precision Engineering (ICPE2022) C047 2022.11
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Study on Smoothing of Hole Wall Surface by Electron Beam Polishing under Control of Magnetic Field Reviewed International journal
Togo SHINONAGA, Jiayu LU, Motohiro INOUE, Akira OKADA
Procedia CIRP 113 536 - 540 2022.10
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Publisher：Elsevier BV
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Synergy Effect of Abrasive Blasting and Large-area EB Irradiation on Surface Finishing of AMed Titanium Alloy Reviewed International journal
Hiroya KOBAYASHI, Togo SHINONAGA, Toshiya TSUJI, Akira OKADA
Procedia CIRP 113 318 - 322 2022.10
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Language：English Publishing type：Research paper (international conference proceedings) Publisher：Elsevier BV
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Study on Joint Characteristics in Laser Butt Welding of AMed and Bulk Ti6Al4V plates International coauthorship
Yasuhiro Okamoto, Togo Shinonaga, Yoshito Takemoto, Akira Okada, Akihiro Ochi, Ryuya Kishimoto, Sisa Pityana, Nana Arthur, Peter Omoniyi, Rasheedat Mahamood, Martin Maina, Esther Akinlabi
Proceedings of IIW2022 - International Conference on Welding and Joinning 469 - 472 2022.7
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Authorship：Corresponding author Language：English Publishing type：Research paper (international conference proceedings)
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Improvement in Corrosion Resistance of Al-Cu Alloy by Large-area Electron Beam Irradiation Reviewed
Togo Shinonaga, Shun Watanabe, Akira Okada
International Journal of Electrical Machining 27 22 - 27 2022.3
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electrical Machining Engineers
DOI： 10.2526/ijem.27.22
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Joint integrity evaluation of laser beam welded additive manufactured Ti6Al4V sheets Reviewed International coauthorship International journal
P. O. Omoniyi, R. M. Mahamood, N. Arthur, S. Pityana, S. Skhosane, Y. Okamoto, T. Shinonaga, M. R. Maina, T. C. Jen, E. T. Akinlabi
Scientific Reports 12 ( 1 ) 4062 2022.3
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Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
<title>Abstract</title>The feasibility of joining laser metal deposited Ti6Al4V sheets using laser beam welding was investigated in this article. The additive manufactured sheets were joined using a 3 kW CW YLS-2000-TR ytterbium laser system. The mechanical properties and microstructure of the welded additive manufactured parts (AM welds) were compared with those of the wrought sheets welded using the same laser process. The welds were characterized and compared in terms of bead geometry, microhardness, tensile strength, fractography, and microstructure. The differences in characteristics are majorly found in the width of the bead and tensile strength. The bead width of AM welds appear wider than the wrought welds, and the wrought welds exhibited higher tensile strength and ductility than the AM welds.
DOI： 10.1038/s41598-022-08122-2
Other Link： https://www.nature.com/articles/s41598-022-08122-2
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Bottom surface smoothing of high aspect ratio hole by guiding large-area electron beam with magnet Reviewed International journal
Togo Shinonaga, Jiayu Lu, Mitsuhiro Kimura, Motohiro Inoue, Akira Okada
The International Journal of Advanced Manufacturing Technology 119 4979 - 4990 2022.1
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
DOI： 10.1007/s00170-021-08380-w
Other Link： https://link.springer.com/article/10.1007/s00170-021-08380-w/fulltext.html
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Fundamental Study on Side Surface Smoothing of Hole by Large-area EB Irradiation Method Reviewed
Jiayu LU, Togo SHINONAGA, Motohiro INOUE, Akira OKADA
Proceedings of the 10th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) 2021.11
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Fundamental Study on Surface Texturing of Alloy Steel by Ultrashort Pulsed Laser for Control of Water Repellency Reviewed
Kentaro MURATA, Togo SHINONAGA, Yasuhiro OKAMOTO, Akira OKADA
Proceedings of the 10th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) 2021.11
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Surface Smoothing and Surface Modification of Maraging Steel by Large-area EB Irradiation Reviewed
Shun WATANABE, Togo SHINONAGA, Atsushi YAMAGUCHI, Akira OKADA
Proceedings of the 10th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) 2021.10 111 - 080 2021.11
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Language：English Publishing type：Research paper (international conference proceedings) Publisher：Japan Society of Mechanical Engineers
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Laser Butt Welding of Thin Ti6Al4V Sheets: Effects of Welding Parameters Reviewed International coauthorship International journal
Peter Omoniyi, Rasheedat Mahamood, Nana Arthur, Sisa Pityana, Samuel Skhosane, Yasuhiro Okamoto, Togo Shinonaga, Martin Maina, Tien-Chien Jen, Esther Akinlabi
JOURNAL OF COMPOSITES SCIENCE 5 ( 9 ) 2021.9
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Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI
Titanium and its alloys, particularly Ti6Al4V, which is widely utilized in the marine and aerospace industries, have played a vital role in different manufacturing industries. An efficient and cost-effective way of joining this metal is by laser welding. The effect of laser power and welding speed on the tensile, microhardness, and microstructure of Ti6Al4V alloy is investigated in this paper. Results show that the microhardness is highest at the fusion zone and reduces towards the base metal. The microstructure at the fusion zone shows a transformed needle-like lamellar alpha phase, with a martensitic alpha' phase observed within the heat affected zone. Results of tensile tests show an improved tensile strength compared to the base metal.
DOI： 10.3390/jcs5090246
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Surface smoothing and repairing of additively manufactured metal products by large-area electron beam irradiation Reviewed International journal
T. Shinonaga, A. Yamaguchi, Y. Okamoto, A. Okada
CIRP Annals-MANUFACTURING TECHNOLOGY 70 ( 1 ) 143 - 146 2021.5
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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SHINONAGA Togo, KINOSHITA Shouno, OKAMOTO Yasuhiro, OKADA Akira
International Journal of Electrical Machining ( 26 ) 54 - 59 2021.3
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
DOI： 10.2526/ijem.26.54
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Strength characterization of adhesive joint surface treated by large-area EB irradiation International journal
Yuya OMIYA, Kenji TOYOTA, Ryota NAKANISHI, Togo SHINONAGA, Tadashi SHIOTA, Akira OKADA, Masahiro FUJII
Journal of Advanced Mechanical Design, Systems, and Manufacturing 15 ( 4 ) JAMDSM0052 - JAMDSM0052 2021.2
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Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Mechanical Engineers
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Fundamental Study on Micro-edge Filleting by Using Large-area Electron Beam Irradiation Method Reviewed
Zehua Zhou, Tsubasa Sakai, Togo Shinonaga, Akira Okada
Proceedings of 18th International Conference on Precision Engineering (ICPE2020) B-6-4 2020.11
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Alumina film sputter deposition on mold steel by large-area electron beam irradiation Reviewed International journal
Togo Shinonaga, Masashi Takata, Motohiro Inoue, Akira Okada
International Journal of Precision Engineering and Manufacturing-Green Technology 8 ( 5 ) 1393 - 1404 2020.7
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC
DOI： 10.1007/s40684-020-00243-1
Other Link： https://link.springer.com/article/10.1007/s40684-020-00243-1/fulltext.html
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Clarification of Temperature Distribution for Metals with Different Thermal Conductivity in Large-area Electron Beam Irradiation Reviewed
Shoya Ota, Tsubasa Sakai, Togo Shinonaga, Yasuhiro Okamoto, Akira Okada
Procedia CIRP 95 960 - 965 2020.2
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Language：English Publishing type：Research paper (international conference proceedings) Publisher：Elsevier BV
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Highly Efficient Surface Repairing of AMed Metal Parts by Large-area EB Irradiation Reviewed
Togo Shinonaga, Taisei Watanabe, Atsushi Yamaguchi, Akira Okada
Procedia CIRP 95 976 - 980 2020.2
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings) Publisher：Elsevier BV
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Influence of initial surface state on shape change of LIPSS Reviewed
Wada Yuki, Togo Shinonaga, Yasuhiro Okamoto, Akira Okada
Proceedings of 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2019) 2019.11
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Influence of Surface Temperature Field in Large-area Electron Beam Irradiation on Wear Resistance of Zirconia Reviewed
Togo Shinonaga, Tsubasa Sakai, Motohiro Inoue, Akira Okada
Proceedings of 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2019) 2019.11
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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Fundamental Study on Surface Damage Repairing of AMed Metal Parts by Large-area Electron Beam Irradiation Reviewed
Taisei Watanabe, Togo Shinonaga, Atsushi Yamaguchi, Akira Okada
Proceedings of 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2019) 2019.11
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Change in Thickness of Removal and Modifed layers on Workpiece with Different Material Property by Larg-area EB irradiation Reviewed
Tsubasa Sakai, Shoya Ota, Togo Shinonaga, Akira Okada
Proceedings of 8th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2019) 2019.11
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Study on Improvement of Wear Resistance for Zirconia by Large-area Electron Beam Irradiation Reviewed
Shinonaga Togo, Kimura Mitsuhiro, Inoue Motohiro, Okada Akira
International Journal of Electrical Machining ( 24 ) 27 - 32 2019
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Electrical Machining Engineers
<p>Zirconia has been widely applied for cutting tools and biomaterials, since it has superior mechanical properties such as high fracture toughness, bending strength and biocompatibility in ceramics. In order to maintain its surface functions for long-term, further improvement of wear resistance for zirconia has been required. In this study, improvement of wear resistance for zirconia is proposed by large-area electron beam (EB) irradiation. Experimental results show that mean width in roughness curve of zirconia surface increases with increasing the energy density of EB, although the maximum height in surface roughness is almost same as the ground surface. In friction and wear test, coefficient of friction reduces with increasing the energy deinsity of EB since ball material smoothly slides on the EB irradiated zirconia surface. Furthermore, it is made clear that wear resistance of zirconia significantly improves by the EB irradiation under appropriate energy density.</p>
DOI： 10.2526/ijem.24.27
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High surface quality micro machining of monocrystalline diamond by picosecond pulsed laser Reviewed International journal
Y. Okamoto, A. Okada, A. Kajitani, T. Shinonaga
CIRP ANNALS-MANUFACTURING TECHNOLOGY 68 ( 1 ) 197 - 200 2019
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Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV
In micro machining of monocrystalline diamond by pulsed laser, unique processing characteristics appeared only under a few ten picosecond pulse duration and a certain overlap rate of laser shot. Cracks mostly propagate in parallel direction to top surface of workpiece, although the laser beam axis is perpendicular to the surface. This processed area can keep diamond structure, and its surface roughness is smaller than R-a = 0.2 mu M. New laser micro machining method to keep diamond structure and small surface roughness is proposed. This method can contribute to reduce the polishing process in micro machining of diamond. (C) 2019 Published by Elsevier Ltd on behalf of CIRP.
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Influence of magnetic property for workpiece on thickness of removal and modified layers in large-area EB irradiation Reviewed
酒井翼, 篠永東吾, 岡田晃
日本機械学会論文集 85 ( 880 ) 2019
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Study on Improvement of Wear Resistance for Zirconia by Large-area EB Irradiation Reviewed
Togo Shinonaga, Mitsuhiro Kimura, Motohiro, Inoue, Akira Okada
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT2018) 190 - 193 2018.9
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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Influence of Molten Area on Joining Strength in Microwelding of Glass by Picosecond Pulsed Laser Reviewed
Yuta Ogino, Zhiyong Ouyang, Yasuhiro Okamoto, Togo Shinonaga, Akira Okada
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT2018) 194 - 198 2018.9
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Investigation on Osteoconductivity of EDMed Titanium Alloy Surface in Deionized Water Reviewed
Yuta lida, Keita Fujii, Togo Shinonaga, Akira Okada
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT2018) 180 - 184 2018.9
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Smoothing of Hole Bottom Surface by Guiding Electron Beam with Magnet Reviewed
Mituhiro Kimura, Togo Shinonaga, Motohiro Inoue, Akira Okada
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT2018) 26 - 30 2018.9
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Magnetic fixtures for enhancement of smoothing effect by electron beam melting Reviewed International journal
Togo Shinonaga, Akira Okada, Hao Liu, Mitsuhiro Kimura
Journal of Materials Processing Technology 254 229 - 237 2018.4
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Authorship：Lead author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Yasuhiro Okamoto, Mizuna ITO, Akira Okada, Togo Shinonaga
International Journal of Electrical Machining 23 ( 23 ) 38 - 44 2018
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Authorship：Last author Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electrical Machining Engineers
DOI： 10.2526/ijem.23.38
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Study on Variation of Burr Height in Micro-deburring with Large-area Electron Beam Reviewed
Togo Shinonaga, Tsubasa Sakai, Yasuaki Kimura, Akira Okada
International Journal of Electrical Machining ( 23 ) 45 - 50 2018
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Takahiro SHIMOSE, Yasuhiro OKAMOTO, Masafumi OSHITA, Norio NISHI, Togo SHINONAGA, Akira OKADA
Journal of Advanced Mechanical Design, Systems, and Manufacturing 12 ( 5 ) JAMDSM0100 - JAMDSM0100 2018
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Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Mechanical Engineers
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Influence of material property on thickness of modified layer generated by large-area electron beam Reviewed
Togo Shinonaga, Yasuaki Kimura, Tsubasa Sakai, Akira Okada
Procedia CIRP 68 178 - 183 2018
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings) Publisher：ELSEVIER SCIENCE BV
In large-area electron beam (EB) irradiation method developed recently, high energy density of EB can be obtained without focusing the beam. Therefore, the wide area of material surface can be melted instantly, and high efficient surface finishing is possible. Moreover, surface functions such as corrosion resistance and water repellency of the metal molds were improved by the large-area EB irradiation, since thin resolidified layer was formed on the metal surface. It is expected that thick modified layer is effective to maintain their surface functions for long-term. Therefore, control and prediction of the modified layer thickness are important in order to obtain appropriate modified layer thickness on metals with different material properties. In this study, variations of modified layer thickness on metals with different material property are experimentally investigated. Furthermore, electron behavior during large-area EB irradiation is simulated by using an electron track analysis, and prediction of the modified layer thickness is tried with temperature distributions by using an unsteady heat conduction analysis. Experimental results show that the modified layer thickness increases with increasing energy density. The thickness with high relative permeability is larger than that with low one. Analytical results of the modified layer thickness in unsteady heat conduction analysis show quantitative agreement with experimental ones. Furthermore, the modified layer thickness on the metals with different thermal property and density is also discussed. Then, the modified layer thickness of metals with different material property can be predicted by using our unsteady heat conduction analysis model. (C) 2018 The Authors. Published by Elsevier B.V.
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Fundamental study on addition of osteoconductivity to titanium alloy surface by EDM Reviewed
Togo Shinonaga, Yuta Iida, Ryota Toshimitsu, Akira Okada
International Journal of Automation Technology 11 ( 6 ) 869 - 877 2017.11
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Fuji Technology Press
In recent years, one common cure for losses in joint function caused by osteoarthritis or rheumatoid arthritis is replacement with an artificial joint. For this reason, it is necessary to add osteoconductivity to artificial joint component surfaces that make contact with bone, thereby reducing the period of time necessary to fixate the bone tissue and the artificial joint component. With the intent of efficiently machining the joint shape by electrical discharge machining (EDM) and simultaneously formation of a surface with osteoconductivity, this study discusses the possibility of adding osteoconductivity to a titanium EDMed surface.
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Study on Clarification of Large-Area EB Irradiation Phenomenon by Electron Track Analysis Reviewed
Yasuaki Kimura, Togo Shinonaga, Akira Okada
Key Engineering Materials 749 118 - 123 2017.8
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Language：English Publishing type：Research paper (scientific journal) Publisher：Trans Tech Publications, Ltd.
In large-area electron beam (EB) irradiation method, uniformly high energy density can be obtained without focusing the beam. Large-area EB can be used for melting and evaporating metal surface instantly. It was clarified that high efficient surface finishing of metal mold steels, ceramics and cemented carbides was possible by the large-area EB irradiation. Furthermore, the tip of convex shape was often rounded after large-area EB irradiation with remarkable material removal at the tip. This phenomenon is probably caused due to the heat accumulation and electrons concentration at the tip. However, electrons behavior near the workpiece surface during large-area EB irradiation has not yet been clarified. In this study, electron track analysis was conducted in order to clarify electrons behavior during large-area EB irradiation. At first, analytical model of the large-area EB irradiation apparatus was built. Then, the EB diameter on the workpiece surface was experimentally measured with different energy density in order to evaluate the accuracy of our analytical model. The calculated results of EB diameter were in good agreement with the experimental ones. In addition, the electrons concentration phenomenon at the tip of convex shape was clarified by calculating energy density distribution on the surface obtained with electron track analysis. The analytical results indicated that the energy density increased from edge to tip of convex shape, while the energy density was constant in the case of planar shape. Experimented results also showed that removal thickness increases with high relative permeability. These results were similar tendency to the energy density distribution. Therefore, electrons concentration on the tip could be simulated by the electron track analysis.
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Effects of pulse duration on removal characteristics of silver nanowire transparent conductive film by nanosecond pulsed laser Reviewed
Norio Nishi, Yasuhiro Okamoto, Masafumi Oshita, Akira Okada, Togo Shinonaga, Tomokazu Sakagawa
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 240 255 - 261 2017.2
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Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE SA
In laser processing of silver nanowire transparent conductive film covered with an acrylic resin layer, effects of pulse duration on electrical insulation and surface quality were experimentally investigated by using nanosecond pulsed laser. The minimum laser fluence to achieve the stable electrical insulation by removal of silver nanowire became small with decreasing the pulse duration, but shorter pulse duration showed drastic change of removal trace area of silver nanowires at the boundary region of laser fluence to change conductive state to insulation one. In contrast, longer pulse duration around 200 ns indicated almost constant small removal trace area of silver nanowires, and wide processing window to perform the stable electrical insulation with small removal trace area of silver nanowires can be expected by using a proper long pulse duration in nanosecond pulsed laser processing. (C) 2016 Elsevier B.V. All rights reserved.
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Effects of Polarization Directionon Removal Characteristics of Silver Nanowire Transparent Conductive Film by fs Pulsed Laser Reviewed
Takahiro Shimose, Yasuhiro Okamoto, Masafumi Oshita, Norio Nishi, Togo Shinonaga, Akira Okada
Proceedings of the 9th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) D09(007) 2017
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Study on Shape Variation of Periodic Surface Nanostructures Produced with Ultrashort Pulse Laser for Control of Cell Spreading Direction, Reviewed
Shono Kinoshita, Togo Shinonaga, Yasuhiro Okamoto, Akira Okada
Proceedings of the 9th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) D07(014) 2017
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Expansion of Smoothed Area on Hole Bottom Surface by Setting Magnetic Block in Large-area Electron Beam Irradiation Reviewed
Togo Shinonaga, Mitsuhiro Kimura, Akira Okada
Proceedings of the 9th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) D33(089) 2017
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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Influence of Pulse Duration on Effective Energy on Material in Nanosecond Pulsed Laser Processing of Mild Steel Reviewed
Mizuna Ito, Togo Shinonaga, Yasuhiro Okamoto, Akira Okada
Proceedings of the 9th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) D10(026) 2017
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Prediction of rounding phenomenon at corner tips in large-area electron beam irradiation Reviewed
Togo Shinonaga, Akira Okada, Tomoaki Miyoshi
International Journal of Machine Tools and Manufacture 110 18 - 26 2016.11
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCI LTD
In large-area electron beam (EB) irradiation method, corner tip of workpiece is generally rounded since removal of material at the tip is done preferentially. Investigation of the shape change is necessary to clarify rounding phenomenon with irradiation of EB. In this study, the shape changes of corner tips were experimentally investigated by Scanning Electron Microscope (SEM) observation of the cross sections. Then, electron track analysis in the EB irradiation was conducted to clarify an electron concentration at the tip. Unsteady heat conduction analysis at the tip was also done with considering the EB concentration at the tip and an electron penetration effect into the surface. The shape changes were estimated by simulation of temperature distribution at the tips. Experimental results show that the curvature radius increases with shot number of EB. The estimated shape changes show quantitatively good agreement with the experimental ones. These results indicate that the rounding phenomenon at the tips by large area EB irradiation can be predicted by our electron track and unsteady heat conduction analysis model. (C) 2016 Elsevier Ltd. All rights reserved.
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Femtosecond laser-induced periodic nanostructure creation on PET surface for controlling of cell spreading Reviewed
Yuji Sato, Masahiro Tsukamoto, Togo Shinonaga, Takuya Kawa
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 122 ( 3 ) 1 - 6 2016.3
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Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER HEIDELBERG
A new method of periodic nanostructure formation on a polyethylene terephthalate (PET) surface has been developed, employing a femtosecond laser with a wavelength of 1045 nm. To generate structured films, the PET was placed in contact with a silicon (Si) wafer, followed by irradiation with the laser focused on the Si wafer, passing through the PET film. In order to evaluate the surface morphology, atomic force microscopy analysis was conducted on both treated and untreated PET surfaces. From the results, nanostructures with a period of 600 nm and height of 100 nm were formed on the PET film surface by laser treatment. A cell cultivation test was carried out on PET films with and without periodic nanostructures, showing that for nanostructured films, the cells (MG-63) were spread along the periodic grooves; in contrast, random cell spreading was observed for cultures grown on the untreated PET film.
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Study on Metal Film Formation by Large-area Electron Beam Irradiation Reviewed
Togo Shinonaga, Masashi Takata, Akira Okada, Sadao Sano
International Journal of Electrical Machining 21 ( 21 ) 7 - 12 2016.3
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Society of Electrical Machining Engineers
Recently, many surfacing processes, such as coating have been widely applied to the industrial products in order to improve the surface functions. One of the practical surfacing processes is a sputter deposition, in which the sputtered target material is deposited on the substrate surface. This method can be used not only for metals but also for insulators and plastics materials as substrate surface. In this study, the possibility of sputter deposition by using a large-area electron beam was discussed. If the target material deposits on the substrate surface simultaneously with the surface melting and resolidification of substrate material by large-area EB, the adhesion between the deposited film and the substrate surface would be strong. Alloy tool steel SKD11 was used as a substrate material, and pure metal tube made of nickel or titanium were used as a target material. Then, the substrate surface after EB irradiation was analyzed and the surface characteristics were investigated.
DOI： 10.2526/ijem.21.7
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Cell spreading on titanium periodic nanostructures with periods of 200, 300 and 600 nm produced by femtosecond laser irradiation Reviewed
M. Tsukamoto, T. Kawa, T. Shinonaga, P. Chen, A. Nagai, T. Hanawa
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 122 ( 2 ) 1 - 4 2016.2
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Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER
Titanium (Ti) is an important biomaterial. We have used femtosecond laser irradiation to form periodic nanostructures on Ti plate for control of the cell spreading. In this study, periodic nanostructures with periodicities of 200, 300 and 600 nm were formed on a Ti plates using a femtosecond laser with wavelengths of 258, 388 and 775 nm, respectively. Cell spreading on the Ti plate for periodic nanostructures with periodicity of 200 nm lacked a definite direction, whereas cell spreadings on the Ti plate for periodic nanostructures with periodicities of 300 and 600 nm occurred along the grooves.
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Formation of periodic nanostructures with femtosecond laser for creation of new functional biomaterials Reviewed
Togo Shinonaga, Shono Kinoshita, Yasuhiro Okamoto, Masahiro Tsukamoto, Akira Okada
Procedia CIRP 18TH CIRP CONFERENCE ON ELECTRO PHYSICAL AND CHEMICAL MACHINING (ISEM XVIII) 42 57 - 61 2016
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Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings) Publisher：ELSEVIER SCIENCE BV
Pure Titanium (Ti) and Ti alloys are the most used biomaterials. However, they have problem for bioactivity because metals have no biofunction. Therefore, adding new function to Ti and Ti alloys are necessary. One method to add new function is the creation of periodic structures on the biomaterial surfaces, which can control cell spreading. Femtosecond laser is one of the useful tools for creating periodic nanostructures, which can be created on metals and semiconductors by self-organizing in the laser focusing spot. In our previous study, the nanostructures could be formed on the Ti plate by using the femtosecond laser with fundamental wavelength of 775 nm. The periodicities of the nanostructures on the Ti plate was approximately 590 nm, which was shorter than the laser wavelength. Cells tests indicated that cell spreading clearly occurs along the grooves of the nanostructures. However, the influence of the periods of the nanostructure on cell spreading has not yet been investigated. It is expected that the periods can be varied by changing laser parameters, such as pulse widths, laser wavelengths, laser fluences, and number of shots. In this study, the periodic nanostructures are created on the Ti plate surface by using the femtosecond laser with fundamental wavelength of 790 nm. Then, influence of the pulse width and number of shots on the periods is investigated. In the experiments, laser beam is focused and scanned on the Ti plate surfaces. The laser irradiated areas are analysed by using a scanning electron microscope (SEM).
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High-speed Observation of Molten Area Formation in Microwelding of Glass by Picosecond Pulsed Laser Reviewed
Motoki Ota, Yasuhiro Okamoto, Imaduddin Helmi Wan Nordin, Togo Shinonaga, Akira Okada
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT 2016) 67 2016
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Fundamental Study on Smoothing of Hole BottomSurface by Large-area Electron Beam Irradiation Reviewed
Hao Liu, Togo Shinonaga, Akira Okada, Motohiro Inoue
Proceedings of the International Conference on Machining, Materials and Mechanical Technologies (IC3MT 2016) 71 2016
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Influence of Pulse duration on Processing Characteristics of Transparent Conductive Film Containing Silver Nanowires by ns Pulsed Fiber Laser Reviewed
Masafumi Oshita, Norio Nishi, Yasuhiro Okamoto, Akira Okada, Togo Shinonaga, Tomokazu Sakagawa
Procedia CIRP 18TH CIRP CONFERENCE ON ELECTRO PHYSICAL AND CHEMICAL MACHINING (ISEM XVIII) 42 62 - 66 2016
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Language：English Publishing type：Research paper (international conference proceedings) Publisher：ELSEVIER SCIENCE BV
Processing characteristics of transparent conductive film containing silver nanowires by ns pulsed fiber lasers with various pulse duration were experimentally investigated in the view-points of insulating state and surface quality. The laser fluence achieving the insulation state became smaller with decreasing the pulse duration. Appearance of removed trace area of silver nanowires was varied by the pulse duration, and the removal area ratio of removed trace area to the whole one was evaluated to discuss the surface quality. Small removal area ratio and good insulation state could be performed at a wide processing window at long pulse duration of 200ns. (C) 2016 The Authors. Published by Elsevier B.V.
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Control of modified surface layer thickness in pulsed large-area EB irradiation Reviewed
Akira Okada, Togo Shinonaga, Motohiro Inoue
Electrotechnica and Electronica 51 ( 5-6 ) 215 - 220 2016
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Hierarchical periodic micro/nano-structures on nitinol and their influence on oriented endothelialization and anti-thrombosis Reviewed
Kosuke Nozaki, Togo Shinonaga, Noriko Ebe, Naohiro Horiuchi, Miho Nakamura, Yusuke Tsutsumi, Takao Hanawa, Masahiro Tsukamoto, Kimihiro Yamashita, Akiko Nagai
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS 57 1 - 6 2015.12
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Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV
The applications of hierarchical micro/nano-structures, which possess properties of two-scale roughness, have been studied in various fields. In this study, hierarchical periodic micro/nano-structures were fabricated on nitinol, an equiatomic Ni-Ti alloy, using a femtosecond laser for the surface modification of intravascular stents. By controlling the laser licence, two types of surfaces were developed: periodic nano- and micro/nanostructures. Evaluation of water contact angles indicated that the nano-surface was hydrophilic and the micro/ nano-surface was hydrophobic. Endothelial cells aligned along the nano-structures on both surfaces, whereas platelets failed to adhere to the micro/nano-surface. Decorrelation between the responses of the two cell types and the results of water contact angle analysis were a result of the pinning effect. This is the first study to show the applicability of hierarchical periodic micro/nano-structures for surface modification of nitinol. (C) 2015 Elsevier B.V. All rights reserved.
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Formation of periodic nanostructures using a femtosecond laser to control cell spreading on titanium Reviewed
T. Shinonaga, M. Tsukamoto, T. Kawa, P. Chen, A. Nagai, T. Hanawa
APPLIED PHYSICS B-LASERS AND OPTICS 119 ( 3 ) 493 - 496 2015.6
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER
Although titanium (Ti) is a common biomaterial, controlling cell spreading by forming periodic structures using a femtosecond laser should improve its biocompatibility. Herein we investigate the influence of periodic nanostructures formed on the surface of a Ti plate on cell spreading. Nanostructures with a periodicity of 590 nm are formed using a femtosecond laser with a wavelength of 775 nm. Cell spreading on the plate without period structures lacks a definite direction, whereas cell spreading on the Ti plate with periodic structures occurs along the grooves, suggesting that forming periodic structures via a femtosecond laser can control cell spreading.
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細胞伸展制御のためのPETフィルム表面へのナノ周期構造形成 Reviewed
佐藤 雄二, 塚本 雅裕, 篠永 東吾, 原 一之, 河 拓弥, 笹木 隆一郎
レーザー研究 43 ( 11 ) 772 - 776 2015
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Togo Shinonaga, Masahiro Tsukamoto, Peng Chen, Takao Hanawa
IEEJ Transactions on Fundamentals and Materials 135 ( 10 ) 587 - 591 2015
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Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Institute of Electrical Engineers of Japan (IEE Japan)
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Control of Electrical Resistance and Temperature of Titanium Dioxide Film by Local Heating with CW Fiber Laser Reviewed
Togo Shinonaga, Masahiro Tsukamoto, Masanari Takahashi, Nobuyuki Abe
JOURNAL OF LASER MICRO NANOENGINEERING 9 ( 3 ) 204 - 208 2014.11
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：JAPAN LASER PROCESSING SOC
Titanium dioxide (TiO2) film has photocatalytic properties and good biocompatibility. To expand the film application, formation of oxygen deficiencies in the film was one of the useful methods. Electrical resistance of the film can be decreased due to oxygen deficiencies formation. The local heating process in vacuum is a useful method to create the oxygen deficiencies in local area of the film. Electrical resistance might be locally decreased by local heating with a CW fiber laser. In our experiment, the films were irradiated with the laser in vacuum. Control of temperature on the film was very important for reducing the electrical resistance. Therefore, temperature monitoring of the laser focusing spot area on the film was performed. Temperature of the laser focusing spot area was increased as the laser intensity was increased. Then, the electrical resistance of the laser focusing spot area was decreased as the laser intensity was increased. Thus, electrical resistance of the laser focusing spot area was decreased as temperature of the laser focusing spot area was increased. These results indicated that electrical resistance of the laser focusing spot area was controlled by changing temperature on the laser focusing spot area.
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Rewriting of low electrical resistance lines on TiO2 film by writing and erasing with femtosecond and CW fiber lasers Reviewed
Masahiro Tsukamoto, Ryosuke Nishii, Yu Muraki, Togo Shinonaga, Minoru Yoshida, Masanari Takahashi, Nobuyuki Abe
APPLIED SURFACE SCIENCE 313 730 - 735 2014.9
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Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV
A rewriting process was developed for reduced electrical resistance lines on a titanium dioxide (TiO2) film with femtosecond and CW fiber lasers. In this process, lines are written on TiO2 film by femtosecond laser irradiation, where the lines have a lower electrical resistance than the surrounding film. By heating with a CW fiber laser in air, the low electrical resistance lines are erased and their electrical resistances increase. When the erased areas on the TiO2 film are irradiated with the femtosecond laser, the lower electrical resistance lines can be rewritten on the film surface. (C) 2014 Elsevier B.V. All rights reserved.
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Periodic nanostructures on titanium dioxide film produced using femtosecond laser with wavelengths of 388 nm and 775 nm Reviewed
Togo Shinonaga, Masahiro Tsukamoto, Godai Miyaji
OPTICS EXPRESS 22 ( 12 ) 14696 - 14704 2014.6
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：OPTICAL SOC AMER
Titanium dioxide (TiO2) film is an important biomaterial used to improve the biocompatibility of titanium (Ti). We have used a film coating method with an aerosol beam and femtosecond laser irradiation to form periodic structures on biomaterials for control of the cell spreading. The control of cell spreading on biomaterials is important for the development of advanced biomaterials. In this study, nanostructures with periods of 130 and 230 nm were formed on a film using a femtosecond laser with wavelengths of 388 and 775 nm, respectively. The nanostructure period on the film was 30% of the laser wavelengths. Periods produced with wavelengths of 388 and 775 nm were calculated using a surface plasmon polariton (SPP) model and the experimental results for both wavelengths were in the range of the calculated periods, which suggests that the mechanism for the formation of the periodic nanostructures on the film with a femtosecond laser was due to the excitation of SPPs. (C)2014 Optical Society of America
DOI： 10.1364/OE.22.014696
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Cell spreading on titanium dioxide film formed and modified with aerosol beam and femtosecond laser Reviewed
Togo Shinonaga, Masahiro Tsukamoto, Akiko Nagai, Kimihiro Yamashita, Takao Hanawa, Nobuhiro Matsushita, Guoqiang Xie, Nobuyuki Abe
APPLIED SURFACE SCIENCE 288 649 - 653 2014.1
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Titanium (Ti) is widely used in biomaterials because of its excellent anti-corrosion properties and high strength. However, Ti has no biological function, so its bioactivity must be improved. Coating a titanium dioxide (TiO2) film on a Ti plate surface has been shown to improve the biocompatibility of Ti plates. If periodic nanostructures were formed on the film surface, the direction of cell spreading might be controlled by the direction of the grooves. Controlling cell spreading on biomaterials would contribute to the creation of advanced biomaterials. In this paper, a TiO2 film was formed on a Ti plate with an aerosol beam composed of sub micron-sized TiO2 particles and helium gas. Periodic nanostructures, lying perpendicular to the laser electric field polarization vector, were formed on the film by scanning the femtosecond laser focusing spot. The period and height of the periodic nanostructures were about 230 nm and 150 nm, respectively. In a cell test, cell spreading was observed along the grooves of the periodic nanostructures; in contrast, cell spreading did not show a definite direction on TiO2 a film without periodic nanostructures. These results suggest that the direction of cell spreading on the film can be controlled by periodic nanostructure formation generated using a femtosecond laser. (C) 2013 Elsevier B. V. All rights reserved.
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Formation of TiO2 film with lower electrical resistance by aerosol beam and fiber laser irradiation Reviewed
T. Shinonaga, M. Tsukamoto, M. Takahashi, M. Fujita, N. Abe
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 112 ( 1 ) 57 - 60 2013.7
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Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER
Titanium dioxide (TiO2) is a functional ceramic with unique photoconductive and photocatalytic properties. In our previous study, a TiO2 film was formed by aerosol beam irradiation. The films were darkened by femtosecond laser irradiation in air. Then electrical resistance of the darkened area on the film decreased. The heating process is also a useful method to vary the TiO2 film property. Local heating can be performed by using a continuous wave (CW) fiber laser. In this study, the film was irradiated with a commercial CW fiber laser in vacuum. Laser irradiated area on the film was also darkened after CW fiber laser irradiation. The electrical resistance of the darkened area on the films was decreased as laser fluence was increased. Electrical resistance of the darkened area after CW fiber laser irradiation in vacuum was much smaller than that after femtosecond laser irradiation.
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Photoconductive properties of titanium dioxide film modified by femtosecond laser irradiation Reviewed
M. Tsukamoto, T. Shinonaga, M. Takahashi, M. Fujita, N. Abe
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 110 ( 3 ) 679 - 682 2013.3
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Language：English Publishing type：Research paper (scientific journal) Publisher：SPRINGER
Titanium dioxide (TiO2) films were irradiated with a femtosecond laser to alter their photoconductive properties. The laser wavelength and pulse duration were 775 nm and 150 fs, respectively. The TiO2 films irradiated with the femtosecond laser were darkened without changing the topography of the TiO2 film surface. The electrical resistances of the films as a function of time were measured under visible-light illumination. The transient electrical resistances decreased as time was increased after turning on the light. There were two stages in the reduction process of the electrical resistance.
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高繰り返しナノ秒ファイバーレーザを用いたTi-6Al-4V合金への微細周期構造形成 Reviewed
谷川大地, 塚本雅裕, 篠永東吾, 永井亜希子, 塙隆夫, 山下仁大, 升野振一郎, 高橋謙次郎, 藤崎晃, 阿部信行
レーザ加工学会誌 20 ( 2 ) 48 - 53 2013
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Variation of Photocatalytic Function of TiO2 Film by Femtosecond Laser Irradiation Reviewed
Masahiro TSUKAMOTO, Togo SHINONAGA, Naoto HORIGUCHI, Minoru YOSHIDA, Masayuki FUJITA, Nobuyuki ABE
Journal of High Temperature Society 37 ( 6 ) 311 - 315 2011.11
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Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Sumart Processing Society for Minerals, Environment and Energy
DOI： 10.7791/jhts.37.311
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Rewriting Process of Lower Electrical Resistance Lines on TiO2 Film using Methods of Whitening with Electric Furnace and Darkening with Femtosecond Laser Reviewed
Masahiro Tsukamoto, Togo Shinonaga, Nobuyuki Abe, Masanari Takahashi, Minoru Yoshida, Hitoshi Nakano, Masayuki Fujita
JOURNAL OF LASER MICRO NANOENGINEERING 6 ( 2 ) 164 - 167 2011.9
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Language：English Publishing type：Research paper (scientific journal) Publisher：JAPAN LASER PROCESSING SOC
Rewriting process of lower electrical resistance lines on a titanium dioxide (TiO2) film was developed. In this process, lower electrical resistance lines were written on a TiO2 film without producing their surface topography changes by femtosecond laser irradiation. By heating with an electrical furnace under air, the electrical resistance of these lines was come back to the higher resistance with no topography changes. This result indicated that the lines could be erased by the heating method under air. When the erasing-treated area was irradiated with a femtosecond laser, the lower electrical resistance lines could be rewritten with no topography changes of the film surface. DOI: 10.2961/jlmn.2011.02.0012
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SHINONAGA Togo, TSUKAMOTO Masahiro, MARUYAMA Sayaka, MATSUSHITA Nobuhiro, WADA Takeshi, WANG Xinmin, HONDA Hiroshi, FUJITA Masayuki, ABE Nobuyuki, INOUE Akihisa
The Review of Laser Engineering 39 ( 5 ) 347 - 353 2011.5
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Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Laser Society of Japan
DOI： 10.2184/lsj.39.347
Other Link： https://jlc.jst.go.jp/DN/JALC/00369921282?from=CiNii
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MICROSTRUCTURES FORMED ON STAINLESS STEEL BY FEMTOSECOND LASER IRRADIATION Reviewed
Hiroshi Honda, Masahiro Tsukamoto, Nobuyuki Abe, Togo Shinonaga, Masayuki Fujita
Ceramic Transactions 219 299 - 303 2010
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Language：English Publishing type：Research paper (scientific journal) Publisher：AMER CERAMIC SOC
Various types of microstructures are formed on material surfaces by femtosecond laser irradiation. The formation conditions depend on the laser irradiation conditions, the materials, and so on. In this study, microstructures formed on stainless steel by femtosecond laser irradiation were investigated. The laser fluence and the number of irradiated laser pulses were changed to explore the microstructure formation conditions. Different types of periodic structures were found to be formed depending on the laser fluence and the number of irradiated laser pulses.
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MICROSTRUCTURE FORMATION ON A TITANIUM-BASED BULK METALLIC GLASS PLATE BY FEMTOSECOND LASER IRRADIATION Reviewed
Masahiro Tsukamoto, Togo Shinonaga, Nobuhiro Matsushita, Xinmin Wang, Takeshi Wada, Nobuyuki Abe
Ceramic Transactions 219 49 - 54 2010
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Language：English Publishing type：Research paper (scientific journal) Publisher：AMER CERAMIC SOC
Bulk metallic glasses (BMGs) are the subject of important research in materials science and processing. Ti-based BMGs are expected to be utilized as new biomaterials because they have high strength, low Young's modulus and excellent corrosion resistance. Bioactivity might depend on developing a microstructure on the surface of the BMG A femtosecond laser is a good tool for forming a surface microstructure. Ti-Zr-Cu-Pd bulk alloys were irradiated with femtosecond lasers. After the irradiation, the BMGs were treated using a hydrothermal electrochemical method. The results of soaking BMGs in simulated body fluid suggest that the BMGs with a surface microstructure have better bioactivity than the BMGs without.
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EBポリッシングによる鉄鋼系金型の高能率表面仕上げおよび表面改質 Invited Reviewed
岡田晃, 篠永東吾
砥粒加工学会誌 56 ( 141 ) 33 - 40 2024.4
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Authorship：Last author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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Improvement of Surface Characteristic of Material by High Energy Density Beam Irradiation Invited Reviewed
Togo SHINONAGA
Journal of the Japan Society for Precision Engineering 89 ( 12 ) 890 - 894 2023.12
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Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Japan Society for Precision Engineering
DOI： 10.2493/jjspe.89.890
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大面積電子ビーム照射法を用いた金属表面の高能率表面仕上げ Invited Reviewed
篠永東吾
真空ジャーナル 183 13 - 17 2023.1
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Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：一般社団法人日本真空工業会
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数値解析を活用した大面積電子ビーム加工現象の解明
岡田晃, 篠永東吾
電気加工学会誌 56 ( 141 ) 33 - 40 2022.3
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Authorship：Last author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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放電加工によるチタン合金表面への骨伝導性付与
岡田晃, 篠永東吾
砥粒加工学会誌 63 ( 11 ) 553 - 556 2019.11
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26 ( 3 ) 207 - 210 2019.10
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大面積電子ビーム照射法による金属AM造形物の表面欠陥修復および表面平滑化
山口篤, 篠永東吾, 岡田晃
電気加工技術 43 ( 133 ) 7 - 12 2019.5
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EBポリッシングによる複雑形状金型の表面仕上げ
篠永東吾, 岡田晃
電気加工技術 43 ( 133 ) 1 - 6 2019.5
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Study on high efficient micro-deburring by large-area EB irradiation
Togo Shinonaga, Yasuaki Kimura, Akira Okada, Tomoaki Miyoshi
Proceeding of the 16th international conference of the european society for precision engineering and nanotechnology P.7.20 2016
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Control of surface profile in periodic nanostructures produced with ultrashort pulsed laser
Togo Shinonaga, Shouno Kinoshita, Yasuhiro Okamoto, Akira Okada
ICALEO2016 Congress Proceedings M601 2016
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Reduction of discoloration zone in micro-drilling of multi-layered artificial skin by picosecond pulsed laser
Yasuhiro Okamoto, Togo Shinonaga, Akira Eguchi, Kiichi Asako, Naoto Maeda, Akira Okada, Shogo Minagi
ICALEO2016 Congress Proceedings M701 2016
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細胞伸展制御のためのフェムト秒レーザ照射による周期的微細構造形成
塚本 雅裕, 河 拓弥, 篠永 東吾, 陳 鵬, 永井 亜希子, 塙 隆夫, 黒田 健介
特異構造金属・無機融合高機能材料開発共同研究プロジェクト 第6回研究所連携プロジェクト公開討論会 2015.11
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チタン系材料上の細胞伸展制御に対するフェムト秒レーザーを用いた周期的微細構造形成の効果
篠永 東吾, 塚本 雅裕, 河 拓弥, 陳 鵬, 永井 亜希子, 塙 隆夫
第9回真空紫外光源およびレーザーアブレーションに関するワークショップ 2015.3
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フェムト秒レーザ誘起周期的微細構造形成による細胞伸展制御
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第５回 ６大学６研究所連携プロジェクト公開討論会 2015.3
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フェムト秒レーザー照射による周期的微細構造形成がチタン基板上の細胞伸展に与える効果
河 拓弥, 塚本 雅裕, 篠永 東吾, 原 一之, 宮川 和也, 徐 賢先, 陳 鵬, 永井 亜希子, 塙 隆夫
第62回応用物理学会春季学術講演会 2015.3
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22 ( 1 ) 52 - 56 2015.2
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フェムト秒レーザー照射によりTi上に形成したナノ及びマイクロ周期構造の細胞伸展への影響
宮川 和也, 塚本 雅裕, 篠永 東吾, 河 拓弥, 陳 鵬, 永井 亜希子, 塙 隆夫
第35回レーザー学会学術講演会年次大会 2015.1
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フェムト秒レーザを用いた純チタン上への周期的微細構造形成による細胞伸展制御
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
平成26年度 特異構造金属・無機融合高機能材料開発共同研究プロジェクト 生体・医療材料開発分野分科会 2015.1
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フェムト秒レーザーを用いたナノ周期構造形成による細胞伸展制御
篠永 東吾, 徐 賢先, 塚本 雅裕, 河 拓弥, 宮川 和也, 原 一之, 陳 鵬, 永井 亜希子, 塙 隆夫
第35回レーザー学会学術講演会年次大会 2015.1
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酸化チタン内部の電気抵抗減少のためのフェムト秒レーザー集光照射
佐々木 康輔, 塚本 雅裕, 佐藤 雄二, 篠永 東吾, 谷川 大地, 西井 諒介, 高橋 雅也, 藤田 雅之, 吉田 実
第35回レーザー学会学術講演会年次大会 2015.1
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ナノ秒レーザーを用いた金属材料の溶融誘発法の開発
中畔 哲也, 塚本 雅裕, 篠永 東吾, 佐藤 雄二, 谷川 大地, 中野 人志
第35回レーザー学会学術講演会年次大会 2015.1
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細胞伸展方向制御のためのフェムト秒レーザを用いた純Ti基板への周期的微細構造形成
河 拓弥, 塚本 雅裕, 篠永 東吾, 原 一之, 宮川 和也, 徐 賢先, 陳 鵬, 永井 亜希子, 塙 隆夫
第82回レーザ加工学会講演会 2015.1
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フェムト秒レーザ照射による周期的微細構造形成及び水熱処理が純チタンの親水性に与える効果
篠永 東吾, 塚本 雅裕, 黒田 健介
平成26年度 特異構造金属・無機融合高機能材料開発共同研究プロジェクト 生体・医療材料開発分野分科会 2015.1
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フェムト秒レーザーを用いた表面構造制御による細胞伸展制御
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第35回レーザー学会学術講演会年次大会 2015.1
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フェムト秒レーザー照射により付与した酸化チタン膜の可視光導電特性
西井 諒介, 塚本 雅裕, 篠永 東吾, 吉田 実, 佐々木 康輔, 高橋 雅也
第35回レーザー学会学術講演会年次大会 2015.1
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Creation of New Functional Biomaterials by Periodic Nanostructures Formation with Femtosecond Laser
Togo SHINONAGA, Masahiro TSUKAMOTO
Journal of the Japan Society for Precision Engineering 81 ( 8 ) 726 - 730 2015
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Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Japan Society for Precision Engineering
DOI： 10.2493/jjspe.81.726
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Fundamental Study on Metal Film Coating by Large-Area EB Irradiation
Masashi Takata, Togo Shinonaga, Akira Okada, Motohiro Inoue, Sadao Sano
The Thirtieth Annual Meeting of The American Society for Precision Engineering 62 244 - 249 2015
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Film Formation Mechanism in Alumina Coating by Large-area Electron Beam Irradiation
Masashi TAKATA, Togo SHINONAGA, Yasuhiro OKAMOTO, Akira OKADA, Motohiro INOUE, Sadao SANO
International conference proceedings of LEM21 2015 (The 8th International Conference on Leading Edge Manufacturing in 21st Century) 2015
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Effect of Focusing Condition on Micro-Welding Characteristic of Glass by Ps Pulsed Laser
Yasuhiro Okamoto, Imaduddin Helmi Wan Nordin, Togo Shinonaga, Tomohiro Takekuni, Tomokazu Sakagawa, Akira Okada
ICALEO 2015 Congress Proceedings 244 - 249 2015
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Study on Control of Surface Structure of Titanium Materials by Ultra Short Pulse Laser Irradiation for Creation of New Functional Biomaterials
Jounal of Japan Laser Society 22 ( 3 ) 33 - 42 2015
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細胞伸展制御のためのフェムト秒レーザー照射によるチタン材の表面構造制御
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第466回レーザー学会研究会「次世代レーザー加工」 2014.10
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Periodic Nanostructure Formation on PET with Femtosecond Laser for Control of Cell Elongation
Hara Kazuyuki, Tsukamoto Masahiro, Shinonaga Togo, Miyagawa Kazuya, Kawa Takuya, Sasaki Ryuichiro
Proc. 33rd International Congress on Applications of Lasers & Electro-Optics(ICALEO 2014) on line 2014.10
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Femtosecond laser induced periodic nanostructures and microstructures on Ti plate for control of cell spreading
Kazuya Miyagawa, Masahiro Tsukamoto, Togo Shinonaga, Kazuyuki Hara, Peng Chen, Akiko Nagai, Takao Hanawa
Proc. 33rd International Congress on Applications of Lasers & Electro-Optics(ICALEO 2014) on line 2014.10
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Control of cell spreading by periodic nanostructures formation with femtosecond laser
T. Shinonaga, M. Tsukamoto, K. Miyagawa, K. Hara, T.Kawa, P. Chen, A. Nagai, T. Hanawa
ICPEPA-9 2014.9
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Periodic Nanostructures Formation for Creating New Functional Biomaterials
Togo Shinonaga, Masahiro Tsukamoto, Peng Chen, Akiko Nagai, Takao Hanawa
第75回応用物理学会秋季学術講演会 OSA joint session 2014.9
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細胞伸展制御のためのフェムト秒レーザー誘起周期的微細構造形成
篠永 東吾, 塚本 雅裕, 宮川 和也, 原 一之, 河 拓弥, 陳 鵬, 永井 亜希子, 塙 隆夫
第75回応用物理学会秋季学術講演会 2014.9
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雰囲気制御下フェムト秒レーザ照射によるSi基板上への周期的微細構造形成
河 拓弥, 塚本 雅裕, 佐藤 雄二, 篠永 東吾, 原 一之
第81回レーザ加工学会講演会 2014.5
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フェムト秒レーザ照射により形成した周期的微細構造による細胞伸展制御
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第81回レーザ加工学会講演会 2014.5
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酸化チタン膜の生体適合性向上のためのフェムト秒レーザ誘起周期的微細構造形成
篠永 東吾, 塚本 雅裕, 宮川 和也, 原 一之, 陳 鵬, 永井 亜希子, 塙 隆夫
（一社）溶接学会 平成26年度春季全国大会 2014.4
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フェムト秒レーザー照射により形成した周期的微細構造の周期がTiO2膜上の細胞進展に与える影響
篠永 東吾, 塚本 雅裕, 宮川 和也, 原 一之, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫
応用物理学会（2014年春） 2014.3
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フェムト秒レーザー照射により形成した周期的微細構造が酸化チタン膜上の細胞伸展に与える効果
篠永 東吾, 塚本 雅裕
第6回レーザー学会次世代産業用レーザー技術専門委員会 2014.3
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細胞伸展制御のためのレーザ照射によるチタン合金等材料の表面改質‐酸化チタン膜へ形成した周期的微細構造が細胞伸展へ与える影響‐
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第4回6大学6研究所連携プロジェクト公開討論会 2014.3
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フェムト秒レーザー照射によりPET上に形成された周期的微細構造の細胞進展への影響
原 一之, 塚本 雅裕, 佐藤 雄二, 篠永 東吾, 伊藤 雄一郎, 宮川 和也, 笹木 隆一郎
応用物理学会（2014年春） 2014.3
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フェムト秒レーザー照射によりTiO2膜上に形成したナノ及びマイクロ周期構造の細胞進展への影響
宮川 和也, 塚本 雅裕, 篠永 東吾, 原 一之, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫
応用物理学会（2014年春） 2014.3
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細胞伸展制御のためのフェムト秒レーザーを用いた周期的微細構造形成
篠永 東吾, 塚本 雅裕, 佐藤 雄二, 陳 鵬, 永井 亜希子, 塙 隆夫
第8回 真空紫外光源およびレーザーアブレーションに関するワークショップ 2014.3
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Variation of cell spreading on TiO2 film modified by 775 nm and 388 nm femtosecond laser irradiation
Masahiro Tsukamoto, Togo Shinonaga, Yuji Sato, Peng Chen, Akiko Nagai, Takao Hanawa
SPIE PhotonicsWest2014 2014.2
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ナノ秒レーザー照射による結晶粒界現出及び周期的微細構造の形成
河 拓弥, 塚本 雅裕, 篠永 東吾, 伊藤 雄一郎, 谷川 大地, 吉田 実, 佐藤 雄二, 柴柳 敏哉
レーザー学会学術講演会第34回年次大会 2014.1
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酸化チタン膜へ形成したフェムト秒レーザー誘起周期的微細構造の細胞伸展への効果
篠永 東吾, 塚本 雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
平成25年度生体・医療材料分野分科会全体会議 2014.1
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チタンの生体適合性に対するフェムト秒レーザー用いた周期的微細構造形成の効果
伊藤 雄一郎, 塚本 雅裕, 篠永 東吾, 宮川 和也, 原 一之, 陳 鵬, 永井 亜希子, 塙 隆夫
レーザー学会学術講演会第34回年次大会 2014.1
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Control of Surface Structure with Femtosecond Laser for Controlling Cell Spreading
21 ( 3 ) 1 - 5 2014
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Variation of Cell Spreading on Titanium Dioxide Film by Periodic Nanostructures Formation wih Femtosecond Laser
Togo Shinonaga, Masahiro Tsukamoto, Peng Chen, Akiko Nagai, Takao Hanawa
Transactions of JWRI 43 ( 2 ) 7 - 10 2014
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Biocompatibility of Titanium Dioxide Film Modified by Femtosecond Laser Irradiation
M. Tsukamoto, T. Shinonaga, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita
Material Science Forum 783-786 1377 - 1382 2014
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生体適合性向上のためのフェムト秒レーザを用いたプラスチックへの機能性付与
原 一之, 塚本 雅裕, 佐藤 雄二, 篠永 東吾, 笹木 隆一郎
レーザ加工学会第80回 2013.12
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TiO2膜上に形成したフェムト秒レーザー誘起ナノ周期構造の細胞伸展への影響
宮川 和也, 塚本 雅裕, 篠永 東吾, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫
レーザ加工学会第80回 2013.12
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TiO2 膜上の細胞伸展におけるフェムト秒レーザーを用いた周期的微細構造形成の効果
篠永 東吾, 塚本 雅裕, 宮川 和也, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫
応用物理学会（2013年秋） 2013.9
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酸化チタン膜の生体適合性に対するフェムト秒レーザを用いた周期的微細構造形成の効果
篠永 東吾, 塚本 雅裕, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫, 松下 伸広, 謝 国強, 阿部 信行
（一社）溶接学会 平成25年度秋季全国大会 2013.9
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フェムト秒レーザー照射による生体適合性向上のためのチタン材への周期的微細構造形成
宮川 和也, 塚本 雅裕, 篠永 東吾, 伊藤 雄一郎, 陳 鵬, 永井 亜希子, 塙 隆夫
応用物理学会（2013年秋） 2013.9
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20 ( 2 ) 124 - 129 2013.7
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高繰り返しフェムト秒ファイバーレーザ照射による酸化チタン皮膜の電気抵抗制御
西井 諒介, 塚本 雅裕, 篠永 東吾, 中野 人志, 高橋 雅也, 阿部 信行
レーザ加工学会第79回 2013.5
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フェムト秒レーザを用いた酸化チタン膜上への周期的微細構造形成による細胞伸展方向変化
篠永 東吾, 塚本 雅裕, 永井 亜希子, 山下 仁大, 塙 隆夫, 松下 伸広, 謝 国強, 阿部 信行
レーザ加工学会第79回 2013.5
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フェムト秒レーザを用いた周期的微細構造形成による酸化チタン膜の生体適合性向上
篠永 東吾, 塚本 雅裕, 西井 諒介, 永井 亜希子, 山下 仁大, 塙 隆夫, 松下 伸広, 謝 国強, 阿部 信行
（一社）溶接学会 平成25年度春季全国大会 2013.4
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フェムト秒レーザー照射によりTiO2膜上に形成した周期的微細構造の細胞伸展への影響
篠永 東吾, 塚本 雅裕, 西井 諒介, 堀口 直人, 永井 亜希子, 山下 仁大, 塙 隆夫, 松下 伸広, 謝 国強, 阿部 信行
応用物理学会（2013年）第60回春季講演会 2013.3
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ナノ秒レーザー照射による酸化チタン膜の電気抵抗変化
堀口 直人, 塚本 雅裕, 吉田 実, 篠永 東吾, 原 一之, 高橋 雅也, 藤田 雅之, 阿部 信行
レーザー学会学術講演会第33回年次大会 2013.1
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高度生体材料創製のためのパルスレーザーを用いたチタン材の表面構造形成
伊藤 雄一郎, 塚本 雅裕, 篠永 東吾, 升野 振一郎, 松下 俊一, 山下 仁大, 永井 亜希子, 塙 隆夫, 阿部 信行
レーザー学会学術講演会第33回年次大会 2013.1
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フェム ト秒レーザーによる酸化チタン結晶の内部加工
西井 諒介, 塚本 雅裕, 篠永 東吾, 堀口 直人, 高橋 雅也, 中野 人志, 阿部 信行
レーザー学会学術講演会第33回年次大会 2013.1
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フェムト秒レーザーによる機能性セラミックスの穴あけ加工 --短波長化による損傷閾値の低下--
原 一之, 塚本 雅裕, 篠永 東吾, 堀口 直人, 高橋 雅也, 吉田 実, 阿部 信行
レーザー学会学術講演会第33回年次大会 2013.1
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Development of visible-light activated titanium dioxide films with femtosecond laser
N. Horiguchi, M. Tsukamoto, M. Yoshida, T. Shinonaga, M. Takahashi, M. Fujita, N. Abe
Proceedings of SPIE - The International Society for Optical Engineering 8609 86090D 2013
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Language：English
Titanium dioxide (TiO2) has a variety of functions, but cannot be activated by visible-light illumination. It is importance to extend the activity of TiO2 into the visible-light, which comprises the larger portion of the room light. Therefore, the visible-light activated TiO 2 is required. We developed it with the femtosecond laser irradiation. The TiO2 films irradiated with femtosecond laser were darkened without changing topography of the TiO2 film surface. In the visible-light photocataltic function measurements, the TiO2 films were evaluated with the acetaldehyde decomposition test. The concentration of acetaldehyde was decreased to over time. This result indicated that visible-light activated photocatalyst function of TiO2 films were generated by femtosecond laser irradiation. © 2013 Copyright SPIE.
DOI： 10.1117/12.2005724
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Femtosecond laser induced periodic nanostructures on titanium dioxide film for improving biocompatibility
T. Shinonaga, N. Horiguchi, M. Tsukamoto, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang, N. Abe
SYNTHESIS AND PHOTONICS OF NANOSCALE MATERIALS X 8609 86090N 2013
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Language：English Publisher：SPIE-INT SOC OPTICAL ENGINEERING
Periodic nanostructures formation on Titanium dioxide (TiO2) film by scanning of femtosecond laser beam spot at fundamental and second harmonic wave is reported. Titanium (Ti) is one of the most widely used for biomaterials, because of its excellent anti-corrosion and high mechanical properties. However, Ti implant is typically artificial materials and has no biofunction. Hence, it is necessary for improving the bioactivity of Ti. Recently, coating of TiO2 film on Ti plate surface is useful methods to improve biocompatibility of Ti plate. Then, if periodic nanostructures were formed on the film surface, cell spreading might be controlled at one direction. We propose periodic nanostructures formation on TiO2 film by femtosecond laser irradiation. Cell spread could be controlled along the grooves of periodic nanostructures. In the experiments, the film was formed on Ti plate with an aerosol beam. A commercial femtosecond Ti : sapphire laser system was employed in our experiments. Periodic nanostructures, lying perpendicular to the laser electric field polarization vector, were formed on the film at fundamental and second harmonic wave. Periodic nanostructures were also produced on Ti plate with femtosecond laser. The period of periodic nanostructures on the film was much shorter than that on Ti plate. By cell test, there was a region of cell spreading along the grooves of periodic nanostructures on the film formed with femtosecond laser at fundamental wave. On bare film surface, cell spreading was observed at all direction. These results suggest that direction of cell spread could be controlled by periodic nanostructures formation on the film.
DOI： 10.1117/12.2005706
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生体適合性向上のためのフェムト秒レーザー照射による酸化チタン膜への周期的微細構造形成
篠永 東吾, 塚本 雅裕, 西井 諒介, 伊藤 雄一郎, 堀口 直人, 永井 亜希子, 山下 仁大, 塙 隆夫, 松下 伸広, 謝 国強, 阿部 信行
2012年（平成24年）秋季 第73回応用物理学関係連合講演会 2012.9
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フェムト秒レーザ照射による酸化チタン膜への周期構造形成
西井 諒介, 中野 人志, 塚本 雅裕, 阿部 信行, 篠永 東吾, 伊藤 雄一郎, 松下 伸広, 謝 国強, 永井 亜希子, 塙 隆夫, 藤田 雅之
第77回レーザ加工学会講演会 2012.5
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フェムト秒レーザー照射による酸化チタン光触媒の作用波長変化
堀口 直人, 塚本 雅裕, 吉田 実, 篠永 東吾, 高橋 雅也, 藤田 雅之, 阿部 信行
2012.3
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フェムト秒レーザー照射による可視光応答型光触媒の開発
堀口 直人, 塚本 雅裕, 吉田 実, 篠永 東吾, 高橋 雅也, 藤田 雅之, 阿部 信行
2012.3
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CW ファイバーレーザーを用いた局所加熱による酸化チタン膜の電気抵抗制御
篠永 東吾, 塚本 雅裕, 堀口 直人, 高橋 雅也, 古河 裕之, 阿部 信行
2012.3
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フェムト秒レーザーにより銅表面に形成された微細構造
本田 博史, 篠永 東吾, 塚本 雅裕, 阿部 信行, 藤田 雅之
2012.1
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高度生体材料創製のための金属材料へのフェムト秒レーザー微細加工
伊藤 雄一郎, 中野 人志, 塚本 雅裕, 阿部 信行, 篠永 東吾, 松下 伸広, 謝 国強, 永井 亜希子, 塙 隆夫, 藤田 雅之, 本田 博史
2012.1
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Variation of Photocatalytic Activity in Titanium Dioxide Film Modified by Femtosecond Laser Irradiation
N. Horiguchi, M. Tsukamoto, M. Yoshida, T. Shinonaga, M. Takahashi, M. Fujita, N. Abe
ICALEO 2012 Congress Proceedings 1311 - 1314 2012
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Formation of Periodic Nanostructures on Titanium dioxide film by femtosecond laser irradiation
T. Shinonaga, M. Tsukamoto, N. Ryousuke, Y. Ito, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang, N. Abe
Transactions of JWRI 41 ( 1 ) 25 - 28 2012
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Formation of periodic microstructures by nanosecond fiber laser irradiation on Ti-6Al-4V alloy for improving biofunction
D. Tanigawa, M. Tsukamoto, T. Shinonaga, S. Masuno, K. Takahashi, A. Nagai, T. Hanawa, K. Yamashita, N. Abe
Proceedings of the Visual-JW2012 389 - 390 2012
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Variation of Biocompatibility of Titanium Dioxide Film by Femtosecond Laser Irradiation
T. Shinonaga, M. Tsukamoto, N. Horigutchi, Y. Ito, A. Nagai, K. Yamashita, T. Hanawa, M. Takahashi, N. Matsushita, X. Guoqiang, N. Abe
ICALEO 2012 Congress Proceedings 705 - 709 2012
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フェムト秒レーザ及びCWファイバーレーザ照射による酸化チタン膜の電気抵抗制御
村木 祐, 吉田 実, 塚本 雅裕, 阿部 信行, 篠永 東吾, 高橋 雅也, 藤田 雅之
2011.12
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フェムト秒レーザー照射による酸化チタン膜の透過スペクトル変化
堀口 直人, 篠永 東吾, 塚本 雅裕, 阿部 信行, 高橋 雅也, 藤田 雅之
2011.8
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CWファイバーレーザーを用いた酸化チタン膜の電気抵抗変化
篠永 東吾, 堀口 直人, 塚本 雅裕, 阿部 信行, 高橋 雅也, 藤田 雅之
2011.8
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Variation of electric resistance of functional ceramics by shortpulse and CW laser irradiation
T. Shinonaga, M. Tsukamoto, M. Takahashi, M. Fujita, N. Abe
2011.6
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Variation of Photoconductive Properties of Titanium Dioxide Film by Femtosecond Laser Irradiation
TSUKAMOTO Masahiro, SHINONAGA Togo, TAKAHASHI Masanari, FUJITA Masayuki, ABE Nobuyuki
Trans. JWRI 40 ( 1 ) 21 - 24 2011.6
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フェムト秒レーザ照射及び電気炉加熱による酸化チタン皮膜の電気抵抗制御
堀口 直人, 篠永 東吾, 塚本 雅裕, 阿部 信行, 高橋 雅也, 藤田 雅之
2011.5
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酸化チタン膜の電気抵抗制御のための短パルス及びCWファイバーレーザ照射
篠永 東吾, 堀口 直人, 塚本 雅裕, 阿部 信行, 高橋 雅也, 藤田 雅之
2011.5
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フェムト秒レーザー照射によりステンレスに形成された微細構造間隔の変化
本田 博史, 塚本 雅裕, 篠永 東吾, 阿部 信行, 藤田 雅之
レーザー学会学術講演会第31回年次大会講演予稿集 2011.1
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酸化チタン膜裏面へのフェムト秒レーザー照射 － 黒色化領域の形成・特性評価 －
堀口 直人, 塚本 雅裕, 篠永 東吾, 吉田 実, 高橋 雅也, 藤田 雅之, 阿部 信行
レーザー学会学術講演会第31回年次大会講演予稿集 2011.1
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ナノ秒レーザー及びCWレーザー照射による酸化チタン膜の表面改質
篠永 東吾, 塚本 雅裕, 堀口 直人, 高橋 雅也, 藤田 雅之, 阿部 信行
レーザー学会学術講演会第31回年次大会講演予稿集 2011.1
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フェムト秒レーザを用いて金属材料表面に形成されたナノ周期構造による機能性付加 -摩擦低減及び生体活性向上-
加藤貴行, 篠永東吾, 阿部信行
レーザ加工学会誌 18 ( 1 ) 22 - 27 2011
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Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal)
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Rewriting Process of Lower Electrical Resistance Lines on TiO2 Film using Methods of Whitening with CW Fiber Laser and Darkening with Femtosecond Laser
M. Tsukamoto, Y. Muraki, T. Shinonaga, M. Yoshida, M. Takahashi, N. Abe
Transactions of JWRI 40 ( 2 ) 29 - 32 2011
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Aerosol Beam and CW Fiber Laser Irradiation for Creation of TiO2 Film with Lower Electric Resistance
T. Shinonaga, M. Tsukamoto, T. Masanari, M. Fujita, N. Abe
Transactions of JWRI 40 ( 1 ) 31 - 34 2011
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Structure control of bioactive titanate nanomesh layers fabricated on laser irradiated Ti-based bulk metallic glass using hydrothermal-electrochemical method
Sayaka Maruyama, Naota Sugiyama, Masahiro Yoshimura, Togo Shinonaga, Masahiro Tsukamoto, Nobuyuki Abe, Takeshi Wada, Xinmin Wang, Akihisa Inoue, Kiyoshi Okada, Nobuhiro Matsushita
Materials Research Society Symposium Proceedings 1316 134 - 139 2011
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Language：English
The surface of Ti-based bulk metallic glass (BMG) was irradiated by the femto-second laser and microgrooves were formed on the surface. The titanate nanomesh layers were fabricated on the micro-grooved BMG surface by hydrothermal-electrochemical (H-E) treatment changing the conditions of the concentration of electrolyte solution (0 and 5 M) and applying current density (0-200 mA/cm 2). The bone-inducing capacity of the samples with different H-E treatment was confirmed by soaking them in a simulated body fluid for 12 days. The H-E treatment in higher concentration 5 M NaOH aq. and applying higher current density above 0.5 mA/cm 2 exhibited excellent bioactivity inducing large hydroxyapatite crystallites. © 2011 Materials Research Society.
DOI： 10.1557/opl.2011.673
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フェムト秒レーザーによる金属基板へのマイクロ構造形成過程
本田 博史, 塚本 雅裕, 篠永 東吾, 阿部 信行, 藤田 雅之
2010.2
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Variation of Topography on the Ti-Based Bulk Metallic Glass after Femtosecond Laser Irradiation
T. Shinonaga, M. Tsukamoto, T. Daisuke, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda, S. Motokoshi, M. Fujita, N. Abe
ICALEO 2010 Congress Proceedings 1486 - 1490 2010
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Improving the bioactivity of the Ti-based BMGs by microstructures formation with femtosecond laser
T. Shinonaga, M. Tsukamoto, D. Tone, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda, N. Abe
Proceedings of the Visual-JW2010 334 - 335 2010
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フェムト秒及びナノ秒レーザ照射による金属ガラス上への微細構造形成
篠永 東吾, 塚本 雅裕, 丸山 沙也香, 松下 伸広, 和田 武, 王 新敏, 本田 博史, 藤田 雅之, 阿部 信行
2009.9
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Microstructure formation by scanning irradiation of femtosecond laser
29th Annual Meeting of The Laser Society of Japan Digest of Technical Papers 2009.1
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Femtosecond and Nanosecond Laser Irradiation for Microstructure Formation on Bulk Metallic Glass
T. Shinonaga, M. Tsukamoto, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda, M. Fujita, N. Abe
Transactions of JWRI 38 ( 1 ) 81 - 84 2009
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Microstructure formation on metallic glass by short pulse laser irradiation
Proceedings of the 71th Laser Materials Processing Conference 2008.12
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Variation of Material Properties of Titania Film by Short Pulsed Laser Irradiation
PREPRINTS OF THE NATIONAL MEETING OF J.W.S. 2008.8
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Surface Modification of Titania Films by Femtosecond Laser and CW Fiber Laser Irradiation
Proceedings of the 70th Laser Materials Processing Conference 2008.5
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Presentations
Presentations
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大面積電子ビーム照射による金属AM造形物の曲げ強度向上に関する研究
川上倫花, 篠永東吾, 山口篤, 岡田晃
2024年度精密工学会九州支部・中四国支部 第25回学生研究発表会 2024.12.7
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放電加工におけるプラズマおよび気泡の挙動に関する混相流解析
劉世賢, 赤坂優太, 篠永東吾, 岡田晃
電気加工学会全国大会（2024） 2024.12.5
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Event date： 2024.12.5 - 2024.12.6
Language：Japanese Presentation type：Oral presentation (general)
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EBポリッシングによる金属AMラティス構造体の圧縮強度向上
篠永東吾, 三浦誠也, 山口篤, 岡田晃
電気加工学会全国大会（2024） 2024.12.5
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Event date： 2024.12.5 - 2024.12.6
Language：Japanese Presentation type：Oral presentation (general)
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冷却速度制御が大面積電子ビーム照射によるAl-Cu合金の表面改質層に及ぼす効果
瀬部彩乃, 篠永東吾, 岡田晃
電気加工学会全国大会（2024） 2024.12.5
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Event date： 2024.12.5 - 2024.12.6
Language：Japanese Presentation type：Oral presentation (general)
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EBポリッシングによる金属AM造形物の表面欠陥修復および表面平滑化技術について Invited
篠永東吾
日本溶接協会 AM部会 第1回技術委員会 2024.6.28
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Event date： 2024.6.28
Language：Japanese Presentation type：Oral presentation (invited, special)
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大面積電子ビーム照射によるAl-Cu合金の陽極酸化皮膜特性向上 Invited
篠永東吾, 宮本郁也, 瀬部綾乃, 岡田晃
溶接学会 第145回マイクロ接合研究委員会 2024.5.24
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Event date： 2024.5.24
Language：Japanese Presentation type：Oral presentation (invited, special)
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大面積電子ビーム照射による表面平滑化技術について Invited
篠永東吾
砥粒加工学会 次世代固定砥粒加工プロセス専門委員会 第114回研究会 2024.5.10
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Event date： 2024.5.10
Language：Japanese Presentation type：Oral presentation (invited, special)
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大面積パルス電子ビーム照射による金属AM造形物の表面平滑化 Invited
篠永東吾
日本金属学会・日本鉄鋼協会 中国四国支部 第55回「若手フォーラム」 2024.2.10 日本金属学会・日本鉄鋼協会 中国四国支部
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Event date： 2024.2.10
Language：Japanese Presentation type：Oral presentation (invited, special)
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超短パルスレーザ照射による生体材料表面の高機能化 Invited
篠永東吾
砥粒加工学会 令和5年度オープンセミナー（応用講座）「次世代レーザ技術 ～開発から応用まで～」 2023.12.19
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Event date： 2023.12.19
Language：Japanese Presentation type：Oral presentation (invited, special)
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冷却速度制御が大面積電子ビーム照射によるAl-Cu合金の表面改質層に及ぼす効果
瀬部彩乃, 篠永東吾, 宮本郁也, 岡田晃
2023年度精密工学会中国四国支部・九州支部共催‐広島地方講演会‐ 学生研究発表 2023.12.9
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マルテンサイト系ステンレス鋼AM造形物の表面性状に関する研究
松田悠生, 篠永東吾, 山口篤, 岡田晃
2023年度精密工学会中国四国支部・九州支部共催‐広島地方講演会‐ 2023.12.9
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超硬合金のCo含有量が細線ワイヤ放電加工特性に及ぼす影響
黒田雄斗, 篠永東吾, 岡田晃
電気加工学会全国大会（2023） 2023.12.1
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Event date： 2023.11.30 - 2023.12.1
Language：Japanese Presentation type：Oral presentation (general)
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大面積電子ビーム照射による金属AM造形物のめっき皮膜欠陥抑制
篠永東吾, 松田悠生, 岡田晃
電気加工学会全国大会（2023） 2023.11.30
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Event date： 2023.11.30 - 2023.12.1
Language：Japanese Presentation type：Oral presentation (general)
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大面積電子ビーム照射によるAl-Cu合金の金属間化合物微細化に関する研究
宮本郁也, 篠永東吾, 岡田晃
電気加工学会全国大会（2022） 2022.11.25
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Event date： 2022.11.24 - 2022.11.25
Language：Japanese Presentation type：Oral presentation (general)
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熱流体解析による凹凸平均間隔がEBポリッシング効果に及ぼす影響の解明
小林裕野, 篠永東吾, 三浦誠也, 岡田晃, 辻俊哉
電気加工学会全国大会（2022） 2022.11.25
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Event date： 2022.11.24 - 2022.11.25
Language：Japanese Presentation type：Oral presentation (general)
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熱流体解析による大面積電子ビーム照射におけるエッジ部形状変化メカニズムの解明
田島響, 篠永東吾, 岡本康寛, 岡田晃
日本機械学会第14回生産加工・工作機械部門講演会 2022.10.7
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Event date： 2022.10.7 - 2022.10.8
Language：Japanese Presentation type：Oral presentation (general)
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大面積電子ビーム照射による陽極酸化被膜特性の向上
宮本郁也, 渡部隼, 篠永東吾, 岡田晃
2022年度精密工学会春季大会学術講演会 2022.3.15
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Event date： 2022.3.15 - 2022.3.17
Language：Japanese Presentation type：Oral presentation (general)
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熱流体解析によるEBポリッシングメカニズムの解明
太田翔也, 田島響, 篠永東吾, 岡本康寛, 岡田晃
2022年度精密工学会春季大会学術講演会 2022.3.15
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Event date： 2022.3.15 - 2022.3.17
Language：Japanese Presentation type：Oral presentation (general)
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EBポリッシングによるマルエージング鋼AM造形物の表面平滑化
小林裕野, 渡邊泰生, 篠永東吾, 岡田晃
2021年度精密工学会秋季大会学術講演会 2021.9.21
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大面積電子ビーム照射法による穴側面仕上げに関する基礎的研究
盧家昱, 篠永東吾, 岡田晃
日本機械学会日本機械学会 中国四国支部 第59期総会・講演会 2021.3.5
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Event date： 2021.3.5
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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大面積電子ビーム照射法による金属AM造形物の傾斜面平滑化に関する基礎的検討
小林裕野,渡邊泰生,篠永東吾,岡田晃
日本機械学会 中国四国学生会 第51回学生員卒業研究発表講演会 2021.3.4
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Event date： 2021.3.4
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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大面積電子ビーム照射によるAl-Cu合金の表面改質に関する基礎的検討
岡野敢太,渡部 隼,篠永東吾,岡田 晃
日本機械学会 中国四国学生会 第51回学生員卒業研究発表講演会 2021.3.4
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Event date： 2021.3.4
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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大面積電子ビーム照射によるマルエージング鋼表面のMo濃化
渡部 隼,渡邊泰生,篠永東吾,岡田 晃,山口 篤
電気加工学会全国大会（2020）
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Event date： 2020.11.19 - 2020.11.20
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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大面積電子ビームを用いたマイクロフィレット加工の曲率半径変化予測
篠永東吾,周 澤華,岡田 晃,井上基弘
電気加工学会全国大会（2020）
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Event date： 2020.11.19 - 2020.11.20
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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テクスチャリングと大面積電子ビーム照射の併用による接着継手の強度向上
豊田健二,中西亮太,大宮祐也,篠永東吾,塩田忠,岡田晃,藤井正浩
2020年度日本接着学会 第16回関西支部若手の会
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Event date： 2020.10.16
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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超短パルスレーザを用いた表面テクスチャリングによる鉄鋼系金型の撥水性制御に関する基礎的研究
村田健太朗, 篠永東吾, 岡本康寛, 岡田 晃
2020年度精密工学会秋季大会学術講演会
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Event date： 2020.9.4 - 2020.9.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：オンライン開催
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大面積電子ビーム照射における熱伝導率の異なる工作物表面温度分布の解明
太田翔也,酒井翼,篠永東吾,岡本康寛,岡田 晃
日本機械学会 中国四国学生会 第50回学生員卒業研究発表講演会
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Event date： 2020.3.5
Language：Japanese Presentation type：Oral presentation (general)
Venue：広島大学東広島キャンパス工学部，広島県
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超短パルスレーザによる鉄鋼系金型への表面テクスチャリングに関する基礎的研究
村田健太朗,和田祐樹,篠永東吾,岡本康寛,岡田 晃
日本機械学会 中国四国学生会 第50回学生員卒業研究発表講演会
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Event date： 2020.3.5
Language：Japanese Presentation type：Oral presentation (general)
Venue：広島大学東広島キャンパス工学部，広島県
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大面積電子ビーム照射によるマルエージング鋼の表面改質に関する基礎的検討
渡部 隼,渡邊泰生,篠永東吾,岡田 晃,山口 篤
2019年度精密工学会九州支部・中国四国支部共催- 佐世保地方講演会-
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Event date： 2019.12.14
Language：Japanese Presentation type：Oral presentation (general)
Venue：佐世保工業高等専門学校，長崎県
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大面積電子ビーム照射によるアルミニウム合金AM造形物の表面性状改善
渡邊泰生,篠永東吾,山口 篤,岡田 晃
電気加工学会全国大会（2019）
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Event date： 2019.11.21 - 2019.11.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：金沢大学サテライトプラザ，石川県
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大面積電子ビーム照射によるマイクロフィレット加工の可能性
篠永東吾,周 澤華,岡田 晃,井上基弘
電気加工学会全国大会（2019）
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Event date： 2019.11.21 - 2019.11.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：金沢大学サテライトプラザ，石川県
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テクスチャリングと表面改質を併用した接着継手の強度信頼性に関する研究
豊田健二,大宮祐也,篠永東吾,岡田晃,藤井正浩
日本機械学会 M&M2019材料力学カンファレンス
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Event date： 2019.11.2 - 2019.11.4
Language：Japanese Presentation type：Oral presentation (general)
Venue：九州大学 伊都キャンパス
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大面積電子ビーム照射法によるフィレット加工の基礎的検討
周 澤華,酒井 翼,篠永東吾,岡田 晃
日本機械学会 第13回 生産加工・工作機械部門講演会
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Event date： 2019.10.4 - 2019.10.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：熊本大学 黒髪南地区，熊本県
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EBポリッシングによる複雑形状金型の表面仕上げ Invited
篠永東吾,岡田 晃
第225回電気加工研究会
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Event date： 2019.5.24
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：大阪産業創造館，大阪府
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大面積電子ビーム照射法による金属AM造形物の表面欠陥修復および表面平滑化 Invited
山口 篤,篠永東吾,岡田 晃
第225回電気加工研究会
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Event date： 2019.5.24
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：大阪産業創造館，大阪府
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Osteoconductivity promotion of titanium with checkerboard-patterned periodic micron/nano-ripples topography fabricated by femtosecond laser
陳 鵬,竹中啓輔,篠永東吾,塚本雅裕,堤 祐介,蘆田茉希,土居 壽,塙 隆夫
日本金属学会 2019年春期(第164回)講演大会
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Event date： 2019.3.20 - 2019.3.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京電機大学 千住キャンパス，東京都
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ジルコニアの大面積電子ビーム照射における温度場が耐摩耗性に及ぼす影響
篠永東吾,木村充宏,岡田 晃,井上基弘
2019年度精密工学会春季大会学術講演会講演
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Event date： 2019.3.13 - 2019.3.15
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京電機大学 千住キャンパス，東京都
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初期表面粗さを有するチタンへの超短パルスレーザ誘起ナノ周期構造形成による細胞伸展制御
和田祐樹,篠永東吾,岡本康寛,岡田 晃
2019年度精密工学会春季大会学術講演会講演
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Event date： 2019.3.13 - 2019.3.15
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京電機大学 千住キャンパス，東京都
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Control of cell orientation on titanium biomaterials by formation of periodic nanostructures produced with ultrashort pulsed laser Invited International conference
Togo Shinonaga
Global Young Investigator Forum at Kyutech 2018
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Event date： 2018.12.17
Language：English Presentation type：Oral presentation (invited, special)
Venue：Tobata Campus, Kyushu Institute of Technology
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大面積電子ビーム照射法による高アスペクト比穴底面仕上げ
木村充宏,篠永東吾,岡田 晃,井上基弘
電気加工学会全国大会（2018）
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Event date： 2018.11.29 - 2018.11.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学会館，大阪府
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放電加工を用いた骨伝導性を有する高機能チタン合金表面の創成
飯田勇太,篠永東吾,岡田 晃
電気加工学会全国大会（2018）
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Event date： 2018.11.29 - 2018.11.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学会館，大阪府
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大面積電子ビーム照射法を用いた金属AM造形物の表面欠陥修復
篠永東吾,山口 篤,渡邊泰生,木村充宏,岡田 晃
電気加工学会全国大会（2018）
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Event date： 2018.11.29 - 2018.11.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学会館，大阪府
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ピコ秒パルスレーザを用いた単結晶ダイヤモンドに対する高品位微細加工
梶谷敦也,下瀬貴大,岡本康寛,篠永東吾,岡田 晃
2018年度精密工学会中国四国支部 香川地方学術講演会
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Event date： 2018.10.27
Language：Japanese Presentation type：Oral presentation (general)
Venue：高松センタービル，香川県
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金属AM造形物の大面積電子ビーム表面欠陥修復法に関する基礎的研究
渡邊泰生,木村充宏,篠永東吾,岡田 晃,山口 篤
2018年度精密工学会中国四国支部 香川地方学術講演会
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Event date： 2018.10.27
Language：Japanese Presentation type：Oral presentation (general)
Venue：高松センタービル，香川県
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工作物の磁性が大面積電子ビーム照射における除去および改質層厚さに与える影響
酒井 翼,周 澤華,篠永東吾,岡田 晃
日本機械学会 第12回生産加工・工作機械部門講演会
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Event date： 2018.10.13 - 2018.10.14
Language：Japanese Presentation type：Oral presentation (general)
Venue：兵庫県立大学 姫路環境人間キャンパス，兵庫県
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グリーンマイクロ秒パルスレーザによる金型材料の表面粗さ低減に関する検討
小崎拓朗,篠永東吾,岡本康寛,岡田 晃
日本機械学会 第12回生産加工・工作機械部門講演会
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Event date： 2018.10.13 - 2018.10.14
Language：Japanese Presentation type：Oral presentation (general)
Venue：兵庫県立大学 姫路環境人間キャンパス，兵庫県
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大面積電子ビーム照射によるジルコニアの耐摩耗性向上
篠永東吾,木村充宏,岡田 晃,井上基弘
2018年度精密工学会秋季大会学術講演会講演
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Event date： 2018.9.5 - 2018.9.7
Language：Japanese Presentation type：Oral presentation (general)
Venue：函館アリーナ，北海道
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大面積電子ビーム照射による金属AM造形物表面平滑化の可能性
山口 篤,渡邊泰生,篠永東吾,岡田 晃
2018年度精密工学会秋季大会学術講演会講演
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Event date： 2018.9.5 - 2018.9.7
Language：Japanese Presentation type：Oral presentation (general)
Venue：函館アリーナ，北海道
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チタン表面にフェムト秒レーザーにより形成した周期的微細構造が細胞の石灰化に与える影響
陳 鵬,蘆田茉希,堤祐介,土居 壽,塙 隆夫,三宅正誉志,竹中啓輔,塚本雅裕,篠永東吾
国際的高度人材育成ライフイノベーションマテリアル創製共同研究プロジェクト（６大学連携プロジェクト）第２回公開討論会
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Event date： 2018.3.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学 中之島センター，大阪府
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ファイバレーザを用いた軟鋼厚板切断における加工溝傾斜角の改善に関する基礎的研究
北川 京,岡本康寛,篠永東吾,岡田 晃,石黒宏明,杉山明彦,三吉弘信,伊藤亮平
2018年度精密工学会春季大会学術講演会講演 2018
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Event date： 2018.3.15 - 2018.3.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：中央大学後楽園キャンパス，東京都
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ガラスのピコ秒パルスレーザ溶接において溶融領域がガラスの接合強度に及ぼす影響
荻野雄太,欧?智勇,岡本康寛,篠永東吾,岡田 晃
2018年度精密工学会春季大会学術講演会講演 2018
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Event date： 2018.3.15 - 2018.3.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：中央大学後楽園キャンパス，東京都
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大面積電子ビーム照射による改質層厚さに工作物の物性値が与える影響
篠永東吾,木村恭彰,酒井 翼,岡田 晃
2018年度精密工学会春季大会学術講演会講演
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Event date： 2018.3.15 - 2018.3.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：中央大学後楽園キャンパス，東京都
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チタンの初期表面粗さが超短パルスレーザ誘起ナノ周期構造の形状に及ぼす影響
和田祐樹, 木下奨之, 篠永 東吾, 岡本康寛, 岡田 晃
日本機械学会 中国四国支部 第56期総会・講演会 2018
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Event date： 2018.3.7
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 理工学部，徳島県
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大面積電子ビーム照射における工作物表面温度分布の解明
酒井 翼, 木村恭彰, 篠永東吾, 岡田 晃
日本機械学会 中国四国支部 第56期総会・講演会 2018
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Event date： 2018.3.7
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 理工学部，徳島県
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マイクロ秒パルスレーザによる金型材料の表面粗さ向上に関する基礎的検討
小崎拓朗,伊藤瑞菜,岡本康寛,篠永東吾,岡田 晃
日本機械学会 中国四国学生会 第48回学生員卒業研究発表講演会 2018
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Event date： 2018.3.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 理工学部，徳島県
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大面積電子ビーム照射によるジルコニアの耐摩耗性向上に関する基礎的研究
福原北斗,木村充宏,篠永東吾,岡田 晃,井上基弘
日本機械学会 中国四国学生会 第48回学生員卒業研究発表講演会 2018
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Event date： 2018.3.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 理工学部，徳島県
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連続発振レーザを用いた軟鋼に対する高速微細溝加工の試み
隈元 健,北川 京,岡本康寛,篠永東吾,岡田 晃
日本機械学会 中国四国学生会 第48回学生員卒業研究発表講演会 2018
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Event date： 2018.3.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 理工学部，徳島県
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フェムト秒レーザーを用いたTi表面へのナノ周期構造形成における周期制御に関する研究
大賀 隆寛, 竹中 啓輔, 浅井 知, 塚本 雅裕, 佐藤 雄二, 清家 翼, 吉田 実, 篠永 東吾
一般社団法人レーザー学会学術講演会第38回年次大会 2018.1
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Event date： 2018.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：京都市勧業館みやこめっせ，京都府
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大面積電子ビーム照射法におけるビーム誘導による穴底面平滑化の可能性
木村充宏,篠永東吾,岡田 晃,井上基弘
電気加工学会全国大会（2017） 2017
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Event date： 2017.11.29 - 2017.12.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：山梨県立図書館イベントスペース，山梨県
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パルスレーザを用いた銀ナノワイヤ透明導電膜に対する絶縁領域形成とその評価
田中康貴,下瀬貴大,岡本康寛,篠永東吾,岡田 晃,西 則男
2017年度精密工学会中国四国支部 鳥取地方学術講演会 2017
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Event date： 2017.11.25
Language：Japanese Presentation type：Oral presentation (general)
Venue：米子コンベンションセンター，鳥取県
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チタン合金表面への骨伝導性付与のための放電加工条件の最適化
飯田勇太,篠永東吾, 岡田 晃,木村光臣
2017年度精密工学会中国四国支部 鳥取地方学術講演会 2017
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Event date： 2017.11.25
Language：Japanese Presentation type：Oral presentation (general)
Venue：米子コンベンションセンター，鳥取県
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Nd:YAGレーザを用いた銅の微細溶接における光吸収特性 ?光吸収率と溶融量の評価?
濱田一樹,井上礼輝,岡本康寛,篠永東吾,岡田 晃,中芝伸一,酒川友一
2017年度精密工学会中国四国支部 鳥取地方学術講演会
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Event date： 2017.11.25
Language：Japanese Presentation type：Oral presentation (general)
Venue：米子コンベンションセンター，鳥取県
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Expansion of Smoothed Area on Hole Bottom Surface by Setting Magnetic Block in Large-area Electron Beam Irradiation International conference
Togo Shinonaga, Mitsuhiro Kimura, Akira Okada
LEM21 (The 9th International Conference on Leading Edge Manufacturing in 21st Century)
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Event date： 2017.11.13 - 2017.11.17
Language：English Presentation type：Oral presentation (general)
Venue：International Conference Center Hiroshima in Peace Memorial Park, Hiroshima
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細胞配向性向上のための超短パルスレーザによる表面形状制御に関する研究
篠永東吾,木下奨之,和田祐樹,岡本康寛,岡田 晃
2017年度精密工学会秋季大会学術講演会講演 2017
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Event date： 2017.9.20 - 2017.9.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学豊中キャンパス，大阪府
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超短パルスレーザを用いた銀ナノワイヤ透明導電膜の除去特性に偏光方向が及ぼす影響
下瀬貴大,大下雅史,岡本康寛,篠永東吾,岡田 晃,西 則男
2017年度精密工学会秋季大会学術講演会講演 2017
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Event date： 2017.9.20 - 2017.9.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学豊中キャンパス，大阪府
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大面積電子ビーム照射における凸形状変化の数値解析的予測に関する研究
木村恭彰,酒井 翼,篠永東吾,岡田 晃
2017年度精密工学会秋季大会学術講演会講演 2017
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Event date： 2017.9.20 - 2017.9.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学豊中キャンパス，大阪府
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大面積パルス電子ビーム照射による金型の表面仕上げ
岡田 晃,篠永東吾
2017年度精密工学会秋季大会学術講演会講演
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Event date： 2017.9.20 - 2017.9.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学豊中キャンパス，大阪府
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レーザを用いたナノ周期構造形成によるチタン製生体材料への新機能付与 Invited
篠永東吾
日本機械学会機素潤滑設計部門 「中国四国機素潤滑設計技術研究会」第67回 例会 「中国四国支部MD&T 研究会」第65回 例会
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Event date： 2017.7.28
Language：Japanese Presentation type：Oral presentation (general)
Venue：岡山大学創立五十周年記念館 2階 大会議室
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Fundamental Study on Slicing Method of Gallium Nitride by Ultrashort Pulsed Laser International conference
Togo Shinonaga, Motoki Ohta, Yasuhiro Okamoto, Akira Okada
LPM2017 (18th International Symposium on Laser Precision Microfabrication) 2017
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Event date： 2017.6.5 - 2017.6.8
Language：English Presentation type：Oral presentation (general)
Venue：富山国際会議場（Toyama International Conference Center）
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ピコ秒レーザを用いたガラスの微細溶融溶接において開口数が材料特性に与える影響
篠永東吾,岡本康寛,太田元基,渡邉大祐,岡田 晃
2017年度精密工学会春季大会学術講演会講演
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Event date： 2017.3.13 - 2017.3.15
Language：Japanese Presentation type：Oral presentation (general)
Venue：慶應義塾大学，東京都
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大面積電子ビーム照射法における磁場によるビーム制御の基礎的検討
木村充宏, 篠永東吾, 岡田晃, 井上基弘
日本機械学会 中国四国支部 第55期総会・講演会 2017
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Event date： 2017.3.6 - 2017.3.7
Language：Japanese Presentation type：Oral presentation (general)
Venue：広島工業大学，広島県
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液相上の固相金属に対するレーザ穴加工とその貫通検出法に関する基礎的検討
出口一輝, 伊藤瑞菜, 岡本康寛, 篠永東吾, 岡田晃
日本機械学会 中国四国学生会 第47回学生員卒業研究発表講演会 2017
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Event date： 2017.3.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：広島工業大学，広島県
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ナノ秒パルスレーザを用いた軟鋼材の加工においてパルス幅が材料到達エネルギーに及ぼす影響
伊藤 瑞菜,篠永 東吾,岡本 康寛,岡田 晃
レーザー学会学術講演会 第37回年次大会 2017
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Event date： 2017.1.7 - 2017.1.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学 常三島キャンパス，徳島県
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超短パルスレーザを用いた生体材料の表面形状制御に関する研究
篠永東吾,塚本雅裕,岡本康寛,岡田 晃
学際・国際的人材養成ライフイノベーションマテリアル創製共同研究プロジェクト生体医療・福祉材料分野 平成28年度全体会議
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Event date： 2017.1.7 - 2017.1.8
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京医科歯科大学生体材料工学研究所，東京都
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超短パルスレーザを用いたガラスの微細溶融溶接
太田元基,渡邉大祐,篠永東吾,岡本康寛,岡田 晃
溶接学会中国支部主催第1回学生発表会 2016
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Event date： 2016.12.24
Language：Japanese Presentation type：Oral presentation (general)
Venue：近畿大学，広島県
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ガラスの微細レーザ溶接における開口数の影響
太田元基,渡邉大祐,篠永東吾,岡本康寛,岡田 晃
第86回レーザ加工学会講演会 2016
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Event date： 2016.12.12 - 2016.12.13
Language：Japanese Presentation type：Poster presentation
Venue：岡山大学，岡山県
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ナノ秒レーザによる銀ナノワイヤ透明導電膜の低視認性プロセスの検討
大下雅史,西 則男,下瀬貴大,篠永東吾,岡本康寛,岡田 晃
第86回レーザ加工学会講演会 2016
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Event date： 2016.12.12 - 2016.12.13
Language：Japanese Presentation type：Poster presentation
Venue：岡山大学，岡山県
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純チタンの横向きリモートレーザ溶接における広範囲アルゴンガスシールド法
横原和男,北川 京,篠永東吾,岡本康寛,岡田 晃,落合彦太郎,木村陵介,小野昇造,赤瀬雅之
第86回レーザ加工学会講演会 2016
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Event date： 2016.12.12 - 2016.12.13
Language：Japanese Presentation type：Poster presentation
Venue：岡山大学，岡山県
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大面積電子ビーム照射における改質層厚さの数値解析的検討
前田幸輝,木村恭彰,篠永東吾,岡田 晃
2016年度精密工学会中国四国支部 山口地方学術講演会 2016
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Event date： 2016.11.26
Language：Japanese Presentation type：Oral presentation (general)
Venue：大島商船高専，山口県
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ナノ秒パルスレーザを用いた銀ナノワイヤ透明導電膜の除去特性と不可視評価
下瀬貴大,大下雅史,西 則男,岡本康寛,篠永東吾,岡田 晃
2016年度精密工学会中国四国支部 山口地方学術講演会 2016
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Event date： 2016.11.26
Language：Japanese Presentation type：Oral presentation (general)
Venue：大島商船高専，山口県
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ピコ秒パルスレーザを用いたガラの微細溶融接における開口数の影響
渡邉大祐,太田元基,岡本康寛,篠永東吾,岡田 晃
2016年度精密工学会中国四国支部 山口地方学術講演会 2016
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Event date： 2016.11.26
Language：Japanese Presentation type：Oral presentation (general)
Venue：大島商船高専，山口県
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ナノ秒レーザを用いた軟鋼材の加工においてパルス幅が材料到達エネルギーに及ぼす影響
伊藤 瑞菜,篠永 東吾,岡本 康寛,岡田 晃
日本機械学会 第11回生産加工・工作機械部門講演会 2016
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Event date： 2016.10.22 - 2016.10.23
Language：Japanese Presentation type：Oral presentation (general)
Venue：名古屋大学，愛媛県
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電子軌道解析による大面積電子ビーム照射現象の基礎的研究
木村恭彰,前田幸輝,篠永東吾,岡田 晃
日本機械学会 第11回生産加工・工作機械部門講演会 2016
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Event date： 2016.10.22 - 2016.10.23
Language：Japanese Presentation type：Oral presentation (general)
Venue：名古屋大学，愛媛県
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Control of Surface Profile in Periodic Nanostructures Produced with Ultrashort Pulsed Laser Invited International conference
Togo Shinonaga, Shouno Kinoshita, Yasuhiro Okamoto, Akira Okada
ICALEO2016 (35th International Congress on the Applications of Lasers & Electro-optics) 2016
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Event date： 2016.10.16 - 2016.10.20
Language：English Presentation type：Oral presentation (invited, special)
Venue：San Diego, CA, USA
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Reduction of Discoloration Zone in Micro-Drilling of Multi-Layered Artificial Skin By Picosecond Pulsed Laser International conference
Yasuhiro Okamoto, Togo Shinonaga, Akira Eguchi, Kiichi Asako, Naoto Maeda, Akira Okada, Shogo Minagi
ICALEO2016 (35th International Congress on the Applications of Lasers & Electro-optics) 2016
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Event date： 2016.10.16 - 2016.10.20
Language：English Presentation type：Oral presentation (general)
Venue：San Diego, CA, USA
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ナノ秒パルスレーザによる銀ナノワイヤ透明導電膜の除去加工特性と視認性評価
西 則夫,大下雅史,下瀬貴大,岡本康寛,篠永東吾,岡田 晃
2016年度精密工学会秋季大会学術講演会 2016
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Event date： 2016.9.6 - 2016.9.8
Language：Japanese Presentation type：Oral presentation (general)
Venue：茨城大学，茨城県
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レーザ照射パラメータによる超短パルスレーザ誘起ナノ周期構造の形状変化
木下奨之,篠永東吾,岡本康寛,岡田晃
第85回レーザ加工学会講演会 2016
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Event date： 2016.6.9 - 2016.6.10
Language：Japanese Presentation type：Poster presentation
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Study on high efferent micro-deburring by large-area EB irradiation International conference
Togo Shinonaga, Yasuaki Kimura, Akira Okada, Tomoaki Miyoshi
euspen’s 16th International Conference & Exhibition 2016
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Event date： 2016.5.30 - 2016.6.3
Language：English Presentation type：Poster presentation
Venue：East Midlands Conference Centre, Beeston Lane, Nottingham, UK
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Insulation characteristics and visibility of transparent conductive film containing silver nanowires by nanosecond pulsed laser International conference
Masafumi Oshita, Norio Nishi, Yasuhiro Okamoto, Togo Shinonaga, Akira Okada
The 2nd Smart Laser Processing Conference (SLPC2016) 2016
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Event date： 2016.5.17 - 2016.5.19
Language：English Presentation type：Poster presentation
Venue：Pacifico Yokohama, Yokohama, Japan
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Shape Change of Periodic Nanostructures Produced with Ultrashort Pulsed Laser on Titanium Surface International conference
Togo Shinonaga, Shouno Kinoshita, Yasuhiro Okamoto, Akira Okada
The 2nd Smart Laser Processing Conference (SLPC2016) 2016
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Event date： 2016.5.17 - 2016.5.19
Language：English Presentation type：Oral presentation (general)
Venue：Pacifico Yokohama, Yokohama, Japan
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Fundamental study on separation method of gallium nitride with internal modified layer by ultrashort pulsed laser International conference
Motoki Ota, Yasuhiro Okamoto, Togo Shinonaga, Akira Okada
The 2nd Smart Laser Processing Conference (SLPC2016) 2016
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Event date： 2016.5.17 - 2016.5.19
Language：English Presentation type：Poster presentation
Venue：Pacifico Yokohama, Yokohama, Japan
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Formation of Periodic Nanostructures with Femtosecond Laser for Creation pf New Functional Biomaterials Invited International conference
Togo Shinonaga, Shouno Kinoshita, Yasuhiro Okamoto, Masahiro Tsukamoto, Akira Okada
18th CIRP Conference on Electro Physical and Chemical Machining (ISEM XVIII) 2016
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Event date： 2016.4.19 - 2016.4.22
Language：English Presentation type：Oral presentation (invited, special)
Venue：Tokyo University, Tokyo, Japan
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大面積電子ビーム照射による穴底面平滑化の検討
Smoothing of Hole Bottom Surface by Large-area Electron Beam Irradiation 2016
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Event date： 2016.3.15 - 2016.3.17
Language：Japanese Presentation type：Oral presentation (general)
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純Ti基板に形成した超短パルスレーザ誘起ナノ周期構造にレーザ照射パラメータが及ぼす影響
木下奨之,篠永東吾,岡本康寛,岡田晃
日本機械学会 中国四国支部 第54期総会・講演会 2016
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Event date： 2016.3.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学工学部，愛媛県
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大面積電子ビーム照射法における改質層厚さの制御に関する研究
ノ ゾンハン,篠永 東吾,三好 友陽,岡田 晃
日本機械学会 中国四国支部 第54期総会・講演会 2016
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Event date： 2016.3.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学工学部，愛媛県
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ナノ秒レーザを用いた鉄系材料の除去加工におけるパルス幅の影響
伊藤瑞菜,篠永東吾,岡本康寛,岡田晃
日本機械学会 中国四国支部 第54期総会・講演会 2016
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Event date： 2016.3.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学工学部，愛媛県
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電子軌道解析を用いた大面積電子ビーム照射現象の解明
木村 恭彰,篠永 東吾,岡田 晃
日本機械学会 中国四国学生会 第46回学生員卒業研究発表講演会 2016
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Event date： 2016.3.8
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学工学部，愛媛県
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ナノ秒パルスレーザを用いたワイヤ透明導電膜の絶縁特性と表面状態
大下雅史,西 則夫,岡本康寛,岡田 晃,篠永東吾
第84回レーザ加工学会 2016
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Event date： 2016.1.19 - 2016.1.20
Language：Japanese Presentation type：Oral presentation (general)
Venue：三菱電機株式会社 名古屋製作所 ＦＡコミュニケーションセンター，愛知
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Control of surface profile in periodic nanostructures produced with ultrashort pulsed laser
Togo Shinonaga, Shouno Kinoshita, Yasuhiro Okamoto, Akira Okada
ICALEO2016 Congress Proceedings 2016
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Event date： 2016
Language：English Presentation type：Oral presentation (invited, special)
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Reduction of discoloration zone in micro-drilling of multi-layered artificial skin by picosecond pulsed laser
Yasuhiro Okamoto, Togo Shinonaga, Akira Eguchi, Kiichi Asako, Naoto Maeda, Akira Okada, Shogo Minagi
ICALEO2016 Congress Proceedings 2016
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大面積電子ビーム照射法を用いた微細バリ取りの高効率化
三好友陽,篠永東吾,岡田 晃,木村恭彰
2015年度精密工学会中国四国支部-高知地方学術講演会- 2015
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Event date： 2015.11.28
Language：Japanese Presentation type：Oral presentation (general)
Venue：高知工科大学，高知
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高繰り返しピコ秒レーザによる多層化人工皮膚の微細穴加検討
江口 輝,朝子毅一,篠永東吾 ,岡本康寛,岡田 晃,潘 秋月,神 桂二,西川悟郎 ,前田 直人
2015年度精密工学会中国四国支部-高知地方学術講演会- 2015
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Event date： 2015.11.28
Language：Japanese Presentation type：Oral presentation (general)
Venue：高知工科大学，高知
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Fundamental Study on Metal Film Coating by Large-Area EB Irradiation International conference
Masashi Takata, Togo Shinonaga, Akira Okada, Motohiro Inoue and Sadao Sano
The Thirtieth Annual Meeting of The American Society for Precision Engineering 2015
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Event date： 2015.11.1 - 2015.11.6
Language：English Presentation type：Poster presentation
Venue：Hyatt Regency Austin, Austin, Texas, USA
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Film Formation Mechanism in Alumina Coating by Large-area Electron Beam Irradiation International conference
Masashi TAKATA, Togo SHINONAGA, Yasuhiro OKAMOTO, Akira OKADA, Motohiro INOUE and Sadao SANO
The 8th International Conference on Leading Edge Manufacturing in 21st Century (LEM21) 2015
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Event date： 2015.10.18 - 2015.10.22
Language：English Presentation type：Oral presentation (general)
Venue：Kyoto Reserch Park, Kyoto
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Effect of Focusing Condition on Micro-Welding Characteristic of Glass by Ps Pulsed Laser International conference
Yasuhiro Okamoto, Imaduddin Helmi Wan Nordin, Togo Shinonaga, Tomohiro Takekuni, Tomokazu Sakagawa, Akira Okada
ICALEO2015 (34th International Congress on the Applications of Lasers & Electro-optics) 2015
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Event date： 2015.10.18 - 2015.10.22
Language：English Presentation type：Oral presentation (general)
Venue：Atlanta, GA USA
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ガラスのピコ秒パルスレーザ溶接における集光特性の影響
太田元基,岡本康寛,篠永東吾,岡田晃
2015年度精密工学会秋季大会学術講演会 2015
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Event date： 2015.9.4 - 2015.9.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：東北大学, 仙台, 宮城
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細胞伸展制御機能付与のための超短パルスレーザを用いたナノ周期構造形成に関する研究
篠永東吾,木下奨之,岡本康寛,塚本雅裕,岡田晃
2015年度精密工学会秋季大会学術講演会 2015
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Event date： 2015.9.4 - 2015.9.6
Language：Japanese Presentation type：Oral presentation (general)
Venue：東北大学, 仙台, 宮城
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フェムト秒レーザにより形成されたナノ及びマイクロ周期構造の細胞伸展への影響
中畔 哲也, 塚本 雅裕, 篠永 東吾, 佐藤 雄二, 河 拓弥, 陳 鵬, 永井 亜希子
（一社）溶接学会 平成27年度秋季全国大会 2015.9
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レーザを用いた新機能材料創成
篠永東吾
電気加工懇話会第78回例会 2015
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Influence of periods of periodic nanostructures formed with femtosecond laser on cell spreading International conference
T. Shinonaga, M. Tsukamoto, P. Chen, A. Nagai, T. Hanawa
LAMP2015 (The 7th International Congress on Laser Advanced Materials Processing) 2015
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Event date： 2015.5.26 - 2015.5.29
Language：English Presentation type：Poster presentation
Venue：Kokura, Fukuoka
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チタン系材料上の細胞伸展制御に対するフェムト秒レーザーを用いた周期的微細構造形成の効果
篠永 東吾,塚本 雅裕,河拓弥,陳 鵬,永井 亜希子,塙 隆夫
第9回真空紫外光源およびレーザーアブレーションに関するワークショップ 2015
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Event date： 2015.3.16
Language：Japanese Presentation type：Oral presentation (general)
Venue：産業技術総合研究所 つくば中央第5事業所，茨城県
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フェムト秒レーザ誘起周期的微細構造形成による細胞伸展制御
篠永 東吾,塚本 雅裕,陳 鵬,永井 亜希子,塙 隆夫
第５回 ６大学６研究所連携プロジェクト公開討論会 2015
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Event date： 2015.3.2
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：早稲田大学 小野記念講堂，東京都
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細胞伸展制御のためのレーザ照射によるチタン合金等材料の表面改質
塚本 雅裕,篠永東吾, 陳 鵬,永井 亜希子,塙 隆夫
第５回 ６大学６研究所連携プロジェクト公開討論会 2015
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Event date： 2015.3.2
Language：Japanese Presentation type：Poster presentation
Venue：早稲田大学 小野記念講堂，東京都
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細胞伸展方向制御のためのフェムト秒レーザを用いた純Ti基板への周期的微細構造形成
河拓弥,塚本雅裕,篠永東吾,徐賢先,原一之,宮川和也,陳鵬,永井亜希子, 塙隆夫
第82回レーザ加工学会講演会 2015
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Event date： 2015.1.13 - 2015.1.14
Language：Japanese Presentation type：Poster presentation
Venue：産業技術総合研究所 臨海副都心センター，東京都
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フェムト秒レーザー照射により付与した酸化チタン膜の可視光導電特性
西井諒介,塚本雅裕,篠永東吾,佐々木康輔,高橋雅也
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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フェムト秒レーザーを用いた表面構造制御による細胞伸展制御
篠永 東吾,塚本 雅裕,陳 鵬,永井 亜希子,塙 隆夫
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：東海大学 高輪校舎．東京都
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フェムト秒レーザー照射によりTi上に形成したナノ及びマイクロ周期構造の細胞伸展への影響
宮川和也,塚本雅裕,篠永東吾,河拓弥,陳鵬,永井亜希子,塙隆夫
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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フェムト秒レーザーを用いたナノ周期構造形成による細胞伸展制御 -周期が細胞伸展に与える影響-
篠永東吾,徐賢先,塚本雅裕,河拓弥,宮川和也,原一之,陳鵬,永井亜希子
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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PET表面細胞伸展制御のためのフェムト秒レーザーを用いた周期的微細構造形成
原一之,塚本雅裕,佐藤雄二,篠永東吾,河拓弥
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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ナノ秒レーザーを用いた金属材料の溶融誘発法の開発
中畔哲也,塚本雅裕,篠永東吾,佐藤雄二,谷川大地,中野人志
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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酸化チタン内部の電気抵抗減少のためのフェムト秒レーザー集光照射
佐々木康輔,塚本雅裕,篠永東吾,西井諒介,谷川大地,佐藤雄二,吉田実
第35回レーザー学会学術講演会年次大会 2015
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Event date： 2015.1.11 - 2015.1.12
Language：Japanese Presentation type：Oral presentation (general)
Venue：東海大学 高輪校舎．東京都
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フェムト秒レーザ照射による周期的微細構造形成及び水熱処理が純チタンの親水性に与える効果
篠永東吾, 塚本雅裕, 黒田健介
平成26年度 特異構造金属・無機融合高機能材料開発共同研究プロジェクト 生体・医療材料開発分野分科会 2015
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Event date： 2015.1.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京工業大学応用セラミックス研究所，神奈川県
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フェムト秒レーザを用いた純チタン上への周期的微細構造形成による細胞伸展制御
篠永東吾, 塚本雅裕, 陳 鵬, 永井亜希子, 塙 隆夫
平成26年度 特異構造金属・無機融合高機能材料開発共同研究プロジェクト 生体・医療材料開発分野分科会 2015
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Event date： 2015.1.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京工業大学応用セラミックス研究所，神奈川県
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Periodic nanostructures produced with femtosecond laser for control of cell spreading International conference
T. Shinonaga, M. Tsukamoto, P. Chen, A. Nagai, T. Hanawa
AMDI-5 (The 5th International Symposium on Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials) 2014
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Event date： 2014.12.3
Language：English Presentation type：Poster presentation
Venue：Tokyo, Japan
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細胞伸展制御のためのフェムト秒レーザー照射によるチタン材の表面構造制御
篠永 東吾,塚本 雅裕,陳 鵬,永井 亜希子,塙 隆夫
レーザー学会第466回研究会報告 2014
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Event date： 2014.10.28
Language：Japanese Presentation type：Oral presentation (general)
Venue：尼崎リサーチ・インキュベーションセンター，兵庫県
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Periodic Nanostructure Formation on PET with Femtosecond Laser for Control of Cell Elongation International conference
K. Hara, M. Tsukamoto, Y. Sato, T. Shinonaga, K. Miyagawa, T. Kawa, R. Sasaki
ICALEO2014 (33rd International Congress on the Applications of Lasers & Electro-optics) 2014
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Event date： 2014.10.22
Language：English Presentation type：Poster presentation
Venue：San Diego, USA
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Effect of periodic nanostructures produced with femtosecond laser on cell spreading International conference
T. Shinonaga, M. Tsukamoto, K. Miyagawa, K. Hara, T. Kawa, P. Chen, A. Nagai, T. Hanawa
ICALEO2014 (33rd International Congress on the Applications of Lasers & Electro-optics) 2014
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Event date： 2014.10.22
Language：English Presentation type：Oral presentation (general)
Venue：San Diego, USA
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Femtosecond laser induced periodic nanostructures and microstructures on Ti plate for control of cell spreading International conference
K. Miyagawa, M. Tsukamoto, T. Shinonaga, K. Hara, P. Chen, A. Nagai, T. Hanawa
ICALEO2014 (33rd International Congress on the Applications of Lasers & Electro-optics) 2014
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Event date： 2014.10.22
Language：English Presentation type：Poster presentation
Venue：San Diego, USA
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Control of cell spreading by periodic nanostructures formation with femtosecond laser International conference
T. Shinonaga, M. Tsukamoto, K. Miyagawa, K. Hara, T. Kawa, P. Chen, A. Nagai, T. Hanawa
ICPEPA-9 (9th international conference on Photo-Ecited Process and Applicatiopns) 2014
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Event date： 2014.10.1
Language：English Presentation type：Oral presentation (general)
Venue：Matsue, Japan
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Periodic Nanostructures Formation for Creating New Functional Biomaterials International conference
Togo Shinonaga, Masahiro Tsukamoto, Peng Chen, Akiko Nagai, Takao Hanawa
2014年（平成26年）秋季第75回応用物理学関係連合講演会 OSA joint session 2014
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Event date： 2014.9.19
Language：English Presentation type：Oral presentation (general)
Venue：北海道大学，北海道
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細胞伸展制御のためのフェムト秒レーザー誘起周期的微細構造形成
篠永 東吾,塚本 雅裕,宮川 和也,原 一之, 河 拓弥,陳 鵬,永井 亜希子,塙 隆夫
2014年（平成26年）秋季第75回応用物理学関係連合講演会 2014
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Event date： 2014.9.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：北海道大学，北海道
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Controlling Cell Spreading on TiO2 film modified with Femtosecond Laser International conference
T. Shinonaga, M. Tsukamoto, K. Miyagawa, K. Hara, P. Chen, A. Nagai, T. Hanawa
LPM2014 (15th International Symposium on Laser Precision Microfabrication) 2014
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Event date： 2014.6.18
Language：English Presentation type：Oral presentation (general)
Venue：Vilnius, Lithuania, Japan
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Biocompatibility of Titanium Dioxide Film Irradiated with Femtosecond Laser International conference
M. Tsukamoto, T. Shinonaga, P. Chen, A. Nagai and T. Hanawa
CIMTEC2014 (13th International Conference on Modern Materials and Technologies) 2014
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Event date： 2014.6.13
Language：English Presentation type：Oral presentation (general)
Venue：Montecatini Terme, Italy
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フェムト秒レーザ照射により形成した周期的微細構造による細胞伸展制御
篠永東吾, 塚本雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
第81回レーザ加工学会講演会 2014
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Event date： 2014.5.27
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：大阪大学，大阪府
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酸化チタン膜の生体適合性向上のためのフェムト秒レーザ誘起周期的微細構造形成
篠永東吾, 塚本雅裕, 宮川 和也, 原 一之, 陳 鵬, 永井 亜希子, 塙 隆夫
溶接学会平成26年度春季全国大会 2014
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Event date： 2014.4.24
Language：Japanese Presentation type：Oral presentation (general)
Venue：東京ビッグサイト，東京都
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細胞伸展制御のためのフェムト秒レーザーを用いた周期的微細構造形成
篠永東吾, 塚本雅裕, 佐藤雄二, 陳 鵬, 永井 亜希子, 塙 隆夫
第8回真空紫外光源およびレーザーアブレーションに関するワークショップ 2014
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Event date： 2014.3.26
Language：Japanese Presentation type：Oral presentation (general)
Venue：宮崎県婦人会館 会議室「ほうおう」，宮崎県
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フェムト秒レーザー照射によりPET上に形成された周期的微細構造の細胞進展への影響
原一之, 塚本雅裕, 佐藤雄二, 篠永東吾, 伊藤雄一郎, 宮川和也, 笹木隆一郎
2014年（平成26年）春季第61回応用物理学関係連合講演会 2014
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Event date： 2014.3.19
Language：Japanese Presentation type：Oral presentation (general)
Venue：青山学院大学，神奈川県
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フェムト秒レーザー照射により形成した周期的微細構造の周期がTiO2膜上の細胞伸展に与える影響
篠永東吾,塚本雅裕,宮川和也,原 一之, 伊藤雄一郎, 陳 鵬,永井 亜希子,塙 隆夫
2014年（平成26年）春季第61回応用物理学関係連合講演会 2014
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Event date： 2014.3.19
Language：Japanese Presentation type：Oral presentation (general)
Venue：青山学院大学，神奈川県
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フェムト秒レーザー照射による酸化チタン膜の光学特性変化
西井諒介, 塚本雅裕, 篠永東吾, 高橋雅也
2014年（平成26年）春季第61回応用物理学関係連合講演会 2014
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Event date： 2014.3.19
Language：Japanese Presentation type：Oral presentation (general)
Venue：青山学院大学，神奈川県
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フェムト秒レーザー照射によりTiO2膜上に形成したナノ及びマイクロ周期構造の細胞進展への影響
宮川和也, 塚本雅裕, 篠永東吾, 原一之, 伊藤雄一郎, 陳鵬, 永井亜希子, 塙隆夫
2014年（平成26年）春季第61回応用物理学関係連合講演会 2014
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Event date： 2014.3.19
Language：Japanese Presentation type：Oral presentation (general)
Venue：青山学院大学，神奈川県
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細胞伸展制御のためのレーザ照射によるチタン合金等材料の表面改質‐酸化チタン膜へ形成した周期的微細構造が細胞伸展へ与える影響‐
篠永東吾, 塚本雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫,
第４回６大学６研究所連携プロジェクト公開討論会 2014
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Event date： 2014.3.7
Language：Japanese Presentation type：Poster presentation
Venue：東京医科歯科大学 M&Dタワー，東京都
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フェムト秒レーザー照射により形成した周期的微細構造が酸化チタン膜上の細胞伸展に与える効果
篠永東吾,塚本雅裕
次世代産業用レーザー技術専門委員会（第６回） 2014
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Event date： 2014.3.4
Language：Japanese Presentation type：Oral presentation (invited, special)
Venue：トルンプ株式会社，神奈川県
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Variation of cell spreading on TiO2 film modified by 775 nm and 388 nm femtosecond laser irradiation International conference
M. Tsukamoto, T. Shinonaga, Y. Sato, A. Nagai, K. Yamashita, T. Hanawa
Photonics West2014 2014
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Event date： 2014.2.4
Language：English Presentation type：Poster presentation
Venue：San Francisco, USA
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チタンの生体適合性に対するフェムト秒レーザー用いた周期的微細構造形成の効果
伊藤雄一郎,塚本雅裕,篠永東吾,宮川和也,原 一之,陳 鵬,永井亜希子
レーザー学会学術講演会第34回年次大会 2014
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Event date： 2014.1.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：北九州国際会議場，福岡県
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ナノ秒レーザー照射による結晶粒界現出及び周期的微細構造の形成
河拓弥, 塚本雅裕, 篠永東吾, 伊藤雄一郎, 谷川大地, 吉田実, 佐藤雄二, 柴柳敏哉
レーザー学会学術講演会第34回年次大会 2014
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Event date： 2014.1.22
Language：Japanese Presentation type：Oral presentation (general)
Venue：北九州国際会議場，福岡県
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酸化チタン膜へ形成したフェムト秒レーザー誘起周期的微細構造の細胞伸展への効果
篠永東吾, 塚本雅裕, 陳 鵬, 永井 亜希子, 塙 隆夫
平成25年度生体・医療材料分野分科会全体会議 2014
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Event date： 2014.1.10
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学接合科学研究所，大阪府
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Improving biocompatibility of titanium by periodic nanostructure formation with femtosecond laser International conference
Y. Ito, M. Tsukamoto, T. Shinonaga, K. Miyagawa. P. Chen, A. Nagai, T. Hanawa
ISETS’ 13 (International Symposium on EcoTopia Science 2013) and AMDI-4 (The 4th International Symposium on Advanced Materials Development and Integration of Novel Structural Metallic and Inorganic Materials) 2013
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Event date： 2013.12.14
Language：English Presentation type：Poster presentation
Venue：Nagoya, Aichi, Japan
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Improving the Biocompatibility of TiO2 Film Formed and Modified with Aerosol Beam and Femtosecond Laser International conference
T. Shinonaga, M. Tsukamoto, Y. Ito, K. Miyagawa. P. Chen, A. Nagai, T. Hanawa
ISETS’ 13 (International Symposium on EcoTopia Science 2013) and AMDI-4 (The 4th International Symposium on Advanced Materials Development and Integration of Novel Structural Metallic and Inorganic Materials) 2013
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Event date： 2013.12.14
Language：English Presentation type：Poster presentation
Venue：Nagoya, Aichi, Japan
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フェムト秒レーザーを用いた周期的微細構造形成によるTiO2膜の細胞伸展制御
篠永東吾
三研究室（阪部研・塚本研・三浦研）合同研究発表会 2013
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Event date： 2013.12.10
Language：Japanese Presentation type：Oral presentation (general)
Venue：大阪大学接合科学研究所，大阪府
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生体適合性向上のためのフェムト秒レーザを用いたプラスチックへの機能性付与
原 一之, 塚本雅裕, 佐藤雄二, 篠永東吾, 笹木隆一郎
第80回レーザ加工学会講演会 2013
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Event date： 2013.12.4
Language：Japanese Presentation type：Poster presentation
Venue：東京大学 生産技術研究所，東京都
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TiO2膜上に形成したフェムト秒レーザ誘起ナノ周期構造の細胞伸展への影響
宮川和也, 塚本雅裕, 篠永東吾, 伊藤 雄一郎, 陳 鵬, 永井亜希子, 塙 隆夫
第80回レーザ加工学会講演会 2013
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Event date： 2013.12.4
Language：Japanese Presentation type：Poster presentation
Venue：東京大学 生産技術研究所，東京都
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Biocompatibility of titanium dioxide film modified by femtosecond laser irradiation International conference
M. Tsukamoto, T. Shinonaga, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang and N. Abe
THERMEC2013 (the 8th international conference on advanced materials) 2013
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Event date： 2013.12.3
Language：English Presentation type：Oral presentation (general)
Venue：Las Vegas, USA
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フェムト秒レーザー照射による生体適合性向上のためのチタン材への周期的微細構造形成
宮川和也, 塚本雅裕, 篠永東吾, 伊藤 雄一郎, 陳 鵬, 永井亜希子, 塙 隆夫
2013年（平成25年）秋季第74回応用物理学関係連合講演会 2013
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Event date： 2013.9.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：同志社大学．京都府
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TiO2膜上の細胞伸展におけるフェムト秒レーザーを用いた周期的微細構造形成の効果
篠永東吾,塚本雅裕,宮川和也,伊藤雄一郎,陳 鵬,永井亜希子,塙 隆夫
2013年（平成25年）秋季第74回応用物理学関係連合講演会 2013
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Event date： 2013.9.16
Language：Japanese Presentation type：Oral presentation (general)
Venue：同志社大学．京都府
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酸化チタン膜の生体適合性に対するフェムト秒レーザを用いた周期的微細構造形成の効果
篠永東吾,塚本 雅裕,陳 鵬,塙 隆夫,永井亜希子,山下仁大,松下伸広,謝 国強,阿部信行
溶接学会平成25年度秋季全国大会 2013
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Event date： 2013.9.3
Language：Japanese Presentation type：Oral presentation (general)
Venue：岡山理科大学（25号館，創立50周年記念館），岡山県
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Cell Spreading on Titanium Dioxide Film with Periodic Nanostructures Produced by Femtosecond Laser Irradiation International conference
T. Shinonaga, M. Tsukamoto, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang, X. Wang and N. Abe
LAMP2013 (LPM2013 : The 14th International Symposium on Laser Precision Microfabrication) 2013
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Event date： 2013.7.25
Language：English Presentation type：Oral presentation (general)
Venue：Nigata, Japan
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高繰り返しフェムト秒ファイバーレーザ照射による酸化チタン皮膜の電気抵抗制御
西井諒介, 塚本雅裕, 篠永東吾, 中野人志, 高橋雅也, 阿部信行
第79回レーザ加工学会講演会 2013
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Event date： 2013.5.7
Language：Japanese Presentation type：Poster presentation
Venue：関西大学 100周年記念会館，大阪府
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フェムト秒レーザを用いた酸化チタン膜上への周期的微細構造形成による細胞伸展方向変化
篠永東吾,塚本雅裕,永井亜希子,山下仁大,塙 隆夫,松下伸広,謝 国強,阿部信行
第79回レーザ加工学会講演会 2013
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Event date： 2013.5.7
Language：Japanese Presentation type：Poster presentation
Venue：関西大学 100周年記念会館，大阪府
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フェムト秒レーザを用いた周期的微細構造形成による酸化チタン膜の生体適合性向上
篠永東吾,塚本雅裕,西井諒介,永井亜希子,山下仁大,塙 隆夫,松下伸広,謝 国強,阿部信行
溶接学会平成25年度春季全国大会 2013
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Event date： 2013.4.17
Language：Japanese Presentation type：Oral presentation (general)
Venue：学術総合センター，東京都
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フェムト秒レーザー照射によりTiO2膜上に形成した周期的微細構造の細胞伸展への影響
篠永東吾,塚本雅裕,西井諒介,伊藤雄一郎,堀口直人,永井亜希子,山下仁大,塙 隆夫,松下伸広,謝 国強,阿部信行
2013年（平成25年）春季第60回応用物理学関係連合講演会 2013
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Event date： 2013.3.29
Language：Japanese Presentation type：Oral presentation (general)
Venue：神奈川工科大学，神奈川県
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Femtosecond laser induced periodic nanostructures on titanium dioxide film for improving biocompatibility International conference
T. Shinonaga, M. Tsukamoto, N. Horiguchi, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang and N. Abe
Photonics West 2013 2013
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Event date： 2013.2.5
Language：English Presentation type：Poster presentation
Venue：San Francisco
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ナノ秒レーザー照射による酸化チタン膜の電気抵抗変化
堀口直人, 塚本雅裕, 吉田実, 篠永東吾, 原一之, 高橋雅也, 藤田雅之, 阿部信行
レーザー学会学術講演会第33回年次大会 2013
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Event date： 2013.1.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：姫路商工会議所，兵庫県
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フェムト秒レーザーによる酸化チタン結晶の内部加工
西井諒介, 塚本雅裕, 篠永東吾, 堀口直人, 高橋雅也, 中野人志, 阿部信行
レーザー学会学術講演会第33回年次大会 2013
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Event date： 2013.1.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：姫路商工会議所，兵庫県
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フェムト秒レーザーによる機能性セラミックスの穴あけ加工 ?短波長化による損傷閾値の低下?
原一之, 塚本雅裕, 篠永東吾, 堀口直人, 高橋雅也, 吉田実, 阿部信行
レーザー学会学術講演会第33回年次大会
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Event date： 2013.1.30
Language：Japanese Presentation type：Oral presentation (general)
Venue：姫路商工会議所，兵庫県
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高度生体材料創製のためのパルスレーザーを用いたチタン材の表面構造形成
伊藤雄一郎, 塚本雅裕, 篠永東吾, 升野振一郎, 松下俊一, 山下仁大, 永井亜希子, 塙隆夫, 阿部信行
レーザー学会学術講演会第33回年次大会 2013
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Event date： 2013.1.28
Language：Japanese Presentation type：Oral presentation (general)
Venue：姫路商工会議所，兵庫県
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Periodic nanostructures formation on Titanium dioxide film by femtosecond laser irradiation for improving the biocompatibility International conference
T. Shinonaga, M. Tsukamoto, Y. Ito, R. Nishii, N. Horigutchi, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang and N. Abe
ISAEM-2012 (The 5th International Symposium on Designing,Processing and Properties of Advanced Engineering Materials) and AMDI-3 (The 3rd International Symposium on Advanced Materials Development and Integration of Novel Structural Metallic and Inorgan・・・ 2012
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Event date： 2012.11.6
Language：English Presentation type：Poster presentation
Venue：Toyohashi, Aichi, Japan
ISAEM-2012 (The 5th International Symposium on Designing,Processing and Properties of Advanced Engineering Materials) and AMDI-3 (The 3rd International Symposium on Advanced Materials Development and Integration of Novel Structural Metallic and Inorganic Materials)
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フェムト秒レーザー照射による酸化チタン膜の光触媒機能変化 -レーザー波長依存性-
堀口直人. 本雅裕, 吉田実, 篠永東吾, 高橋雅也, 藤田雅之, 阿部信行
2012年（平成24年）秋季 第73回応用物理学関係連合講演会 2012
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Event date： 2012.9.11
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学，愛媛県
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生体適合性向上のためのフェムト秒レーザー照射による酸化チタン膜への周期的微細構造形成
篠永東吾,塚本雅裕,西井諒介,伊藤雄一郎,堀口直人,永井亜希子,山下仁大,塙 隆夫,松下伸広,謝 国強,阿部信行
2012年（平成24年）秋季 第73回応用物理学関係連合講演会 2012
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Event date： 2012.9.11
Language：Japanese Presentation type：Oral presentation (general)
Venue：愛媛大学，愛媛県
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Variation of Biocompatibility of Titanium Dioxide Film by Femtosecond Laser Irradiation International conference
T. Shinonaga, M. Tsukamoto, N. Horiguchi, Y. Ito, A. Nagai, K. Yamashita, T. Hanawa, M. Takahashi, M. Nobuhiro, X. Guoqiang and N. Abe
ICALEO2012 2012
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Event date： 2012.9
Language：English Presentation type：Oral presentation (general)
Venue：Anaheim, CA, USA
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Formation of Periodic Microstructures on Titanium Dioxide Film by Femtosecond Laser Irradiation International conference
T. Shinonaga, M. Tsukamoto, Y. Ito, A. Nagai, K. Yamashita, T. Hanawa, M. Takahashi, N. Matsushita, X. Guoqiang and N. Abe
ICCCI2012 (The fourth International Conference on The Characterization and Control of Interface for High Quality Advanced Materials) 2012
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Event date： 2012.9
Language：English Presentation type：Poster presentation
Venue：Kurashiki, Japan
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Control of electrical resistance of TiO2 film by Local heating with CW fiber laser International conference
T. Shinonaga, M. Tsukamoto, M. Takahashi, H. Furukawa and N. Abe
LPM2012 (12th International Symposium on the Laser Precision Microfabrication) 2012
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Event date： 2012.6
Language：English Presentation type：Oral presentation (general)
Venue：Washington DC, USA
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Microstructure formation on metal plates by femtosecond laser irradiation for improving biocompatibility International conference
T. Shinonaga, M. Tsukamoto, Y. Ito, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang, X. Wang and N. Abe
LPM2012 (12th International Symposium on the Laser Precision Microfabrication) 2012
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Event date： 2012.6
Language：English Presentation type：Oral presentation (general)
Venue：Washington DC, USA
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フェムト秒レーザ照射による酸化チタン膜表面への周期構造形成
西井諒介, 塚本雅裕, 篠永東吾, 伊藤雄一郎, 松下伸広, 謝国強, 永井亜希子, 塙隆夫, 藤田雅之, 中野人志, 阿部信行
第77回レーザ加工学会講演会 2012
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Event date： 2012.5.24
Language：Japanese Presentation type：Poster presentation
Venue：大阪大学 銀杏会館，大阪府
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フェムト秒レーザー照射による可視光応答型光触媒の開発
堀口直人. 本雅裕, 吉田実, 篠永東吾, 高橋雅也, 藤田雅之, 阿部信行
2012年（平成24年）春季 第59回応用物理学関係連合講演会 2012
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Event date： 2012.3.16
Language：Japanese Presentation type：Oral presentation (general)
Venue：早稲田大学 早稲田キャンパス，東京都
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フェムト秒レーザー照射による酸化チタン光触媒の作用波長変化
堀口直人. 塚本雅裕, 吉田実, 篠永東吾, 高橋雅也, 藤田雅之, 阿部信行
2012年（平成24年）春季 第59回応用物理学関係連合講演会 2012
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Event date： 2012.3.16
Language：Japanese Presentation type：Poster presentation
Venue：早稲田大学 早稲田キャンパス，東京都
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CWファイバーレーザーを用いた局所加熱による酸化チタン膜の電気抵抗制御
篠永東吾, 塚本雅裕 ,堀口直人, 高橋雅也, 藤田雅之, 阿部信行
2012年（平成24年）春季 第59回応用物理学関係連合講演会 2012
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Event date： 2012.3.16
Language：Japanese Presentation type：Oral presentation (general)
Venue：早稲田大学 早稲田キャンパス，東京都
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フェムト秒レーザーを用いた酸化チタン膜の光触媒機能変化
堀口直人, 篠永東吾, 塚本雅裕, 阿部信行, 高橋雅也, 藤田雅之
レーザー学会学術講演会第32回年次大会 2012
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Event date： 2012.2.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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CWファイバーレーザー照射による酸化チタン膜の電気抵抗制御
篠永東吾, 塚本雅裕, 堀口直人, 高橋雅也, 藤田雅之, 阿部信行
レーザー学会学術講演会第32回年次大会 2012
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Event date： 2012.2.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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高度生体材料創製のための金属材料へのフェムト秒レーザー微細加工
伊藤雄一郎, 中野人志, 塚本雅裕, 阿部信行, 篠永東吾, 松下伸広, 謝国強, 永井亜希子, 塙隆夫, 藤田雅之, 本田博史
レーザー学会学術講演会第32回年次大会 2012
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Event date： 2012.2.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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可視光ファイバーレーザー照射による酸化チタン膜の表面改質
村木祐, 塚本雅裕, 吉田実, 藤本靖, 堀内佑哉, 岡田博樹, 鈴木崇史, 篠永東吾, 堀口直人, 阿部信行
レーザー学会学術講演会第32回年次大会 2012
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Event date： 2012.2.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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短パルスレーザー照射による酸化亜鉛の材料特性変化? - 透明導電膜へのフェムト秒レーザー照射
谷川大地, 篠永東吾, 山下智史, 堀口直人, 塚本雅裕, 阿部信行, 高橋雅也
レーザー学会学術講演会第32回年次大会
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Event date： 2012.2.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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フェムト秒レーザーにより銅表面に形成された微細構造
本田博史,塚本雅裕,篠永東吾,阿部信行,藤田雅之
レーザー学会学術講演会第32回年次大会 2012
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Event date： 2012.1.31
Language：Japanese Presentation type：Oral presentation (general)
Venue：ＴＫＰ仙台カンファレンスセンター，宮城県
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Formation of TiO2 Film with Lower Electric Resistance by Aerosol Beam and Fiber laser Irradiation International conference
T. Shinonaga, M. Tsukamoto, M. Takahashi, M. Fujita and N. Abe
COLA2011 (11 th International Conference on Laser Ablation) 2011
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Event date： 2011.11.18
Language：English Presentation type：Poster presentation
Venue：Cancun, Mexico
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Titanium dioxide film with lower electric resistance formed by CW fiber laser irradiation International conference
T. Shinonaga, M. Tsukamoto, M. Takahashi, M. Fujita and N. Abe
ICTF-15 (The 15th International Conference on Thin Films) 2011
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Event date： 2011.11.11
Language：English Presentation type：Oral presentation (general)
Venue：Kyoto, Japan
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フェムト秒レーザー照射による酸化チタン膜の透過スペクトル変化
堀口直人, 篠永東吾, 塚本雅裕, 阿部信行, 高橋雅也, 藤田雅之
2011年（平成23年）秋季 第72回応用物理学会学術講演会 2011
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Event date： 2011.8.31
Language：Japanese Presentation type：Oral presentation (general)
Venue：山形大学 小白川キャンパス，山形県
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CWファイバーレーザーを用いた酸化チタン膜の電気抵抗変化
篠永東吾, 塚本雅裕 ,堀口直人, 高橋雅也, 藤田雅之, 阿部信行
2011年（平成23年）秋季 第72回応用物理学会学術講演会 2011
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Event date： 2011.8.31
Language：Japanese Presentation type：Oral presentation (general)
Venue：山形大学 小白川キャンパス，山形県
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Variation of electric resistance of functional ceramics by shortpulse and CW laser irradiation International conference
T. Shinonaga, M. Tsukamoto, M. Takahashi, M. Fujita and N. Abe
LPM2011(12th International Symposium on the Laser Precision Microfabrication) 2011
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Event date： 2011.6
Language：English Presentation type：Oral presentation (general)
Venue：Takamatsu, Kagawa, Japan
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フェムト秒レーザ照射及び電気炉加熱による酸化チタン皮膜の電気抵抗制御
堀口直人, 篠永東吾, 塚本雅裕, 阿部信行, 高橋雅也, 藤田雅之
第75回レーザ加工学会講演会 2011
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Event date： 2011.5.11
Language：Japanese Presentation type：Poster presentation
Venue：関西大学 100周年記念会館，大阪府
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酸化チタン膜の電気抵抗制御のための短パルス及びCWファイバーレーザ照射
篠永東吾, 塚本雅裕 ,堀口直人, 高橋雅也, 藤田雅之, 阿部信行
第75回レーザ加工学会講演会 2011
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Event date： 2011.5.11
Language：Japanese Presentation type：Poster presentation
Venue：関西大学 100周年記念会館，大阪府
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ナノ秒レーザー及びCWレーザー照射による酸化チタン膜の表面改質
篠永東吾, 塚本雅裕 ,堀口直人, 高橋雅也, 藤田雅之, 阿部信行
レーザー学会学術講演会 第31回年次大会 2011
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Event date： 2011.1.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：電気通信大学，東京都
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フェムト秒レーザー照射によりステンレスに形成された微細構造間隔の変化
本田博史, 塚本雅裕, 篠永東吾, 阿部信行, 藤田雅之
レーザー学会学術講演会 第31回年次大会 2011
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Event date： 2011.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：電気通信大学，東京都
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酸化チタン膜裏面へのフェムト秒レーザー照射 ?黒色化領域の形成・特性評価?
堀口直人, 塚本雅裕, 篠永東吾, 吉田実, 高橋雅也, 藤田雅之, 阿部信行
レーザー学会学術講演会 第31回年次大会
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Event date： 2011.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：電気通信大学，東京都
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Improving the bioactivity of the Ti-based BMGs by microstructures formation with femtosecond laser International conference
T. Shinonaga, M. Tsukamoto, T. Daisuke, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda and N. Abe
Visual-JW2010 2010
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Event date： 2010.11
Language：English Presentation type：Poster presentation
Venue：Osaka, Japan
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Variation of topography on the Ti-based Bulk Metallic Glass after Femtosecond Laser Irradiation International conference
T. Shinonaga, T. Daisuke, M. Tsukamoto, N. Abe, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda, M. Shinji, M. Fujita
ICALEO 2010 (International Congress on the Applications of Lasers & Electro-optics) 2010
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Event date： 2010.9
Language：English Presentation type：Poster presentation
Venue：Anaheim, CA, USA
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Femtosecond Laser Irradiation and Hydrothermal?electrochemical Treatment for Improving Bioactivity of the Ti-based Bulk Metallic Glass International conference
T. Shinonaga, M. Tsukamoto, S. Maruyama, N. Matsushita, T. Wada, X. Wang, H. Honda, M. Fujita, N. Abe
LPM 2010 (11th International Symposium on the Laser Precision Microfabrication)
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Event date： 2010.6
Language：English Presentation type：Oral presentation (general)
Venue：Stuttgart, Germany
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高繰り返しフェムト秒ファイバーレーザー照射による金属ガラスの表面形態変化
井元健一, 塚本雅裕, 篠永東吾, 丸山沙也香, 松下伸広, 和田武, 王新敏, 本田博史, 藤田雅之, 森本純司, 阿部信行
レーザー学会学術講演会 第30回年次大会 2010
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Event date： 2010.2
Language：Japanese Presentation type：Oral presentation (general)
Venue：千里ライフサイエンスセンター，大阪府
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フェムト秒レーザー照射及び水熱電気化学処理による金属ガラス生体活性化のための表面改質
篠永東吾, 塚本雅裕, 丸山沙也香, 松下伸広, 和田武, 王新敏, 本田博史, 藤田雅之, 阿部信行
レーザー学会学術講演会 第30回年次大会 2010
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Event date： 2010.2
Language：Japanese Presentation type：Oral presentation (general)
Venue：千里ライフサイエンスセンター，大阪府
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フェムトレーザーによる金属板へのマイクロ構造形成過程
本田博士, 塚本雅裕, 篠永東吾, 阿部信行, 藤田雅之
レーザー学会学術講演会 第30回年次大会 2010
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Event date： 2010.2
Language：Japanese Presentation type：Oral presentation (general)
Venue：千里ライフサイエンスセンター，大阪府
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フェムト秒及びナノ秒レーザ照射による金属ガラス上への微細構造形成
篠永東吾, 塚本雅裕, 丸山沙也香, 松下伸広, 和田武, 王新敏, 本田博史, 藤田雅之, 阿部信行
2009年（平成21年）秋季 第70回応用物理学会学術講演会 2009
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Event date： 2009.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：富山大学，富山県
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Microstructures Formation On Bulk Glass Alloy Plate By Femtosecond Laser Irradiation International conference
M. Tsukamoto, T. Shinonaga, N. Matsushita, X. Wang, T. Wada, N. Abe
ICCCI 2009 (The Third International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials, and Joining Technology for New Metallic Glasses and Inorganic Materials) 2009
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Event date： 2009.9
Language：English Presentation type：Oral presentation (general)
Venue：Kurashiki, Japan
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金属ガラス表面生体親和性向上のためのフェムト秒レーザ照射及び水熱合成による表面改質技術の開発
塚本雅裕, 阿部信行, 篠永東吾, 丸山沙也香, 松下伸広, 和田武, 王新敏
第4回3大学3研究所連携プロジェクト公開討論会 2009
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短パルスレーザー照射による金属ガラス表面への微細構造形成
篠永東吾, 山谷智志, 中野人志, 塚本雅裕, 本田博史, 藤田雅之, 王新敏, 和田武, 阿部信行
レーザー学会学術講演会 第29回年次大会 2009
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Event date： 2009.1
Language：Japanese Presentation type：Oral presentation (general)
Venue：徳島大学，徳島県
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Microstructures Formation On Bulk Glass Alloy Plate By Short Pulse Laser Irradiation International conference
M. Tsukamoto, T. Shinonaga, H. Nakano, H. Honda, X. Wang, Y. Yokoyama, N. Abe
The IUMRS International Conference in Asia 2008 2008
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Event date： 2008.12
Language：English Presentation type：Poster presentation
Venue：Nagoya, Japan
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フェムト秒レーザ及びCWファイバーレーザ照射による酸化チタン膜の表面改質
篠永東吾, 中野人志, 吉田実, 吉岡卓, 塚本雅裕, 高橋雅也, 藤田雅之, 阿部信行
第70回レーザ加工学会講演会 2008
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Event date： 2008.5.27
Language：Japanese Presentation type：Poster presentation
Venue：大阪大学 銀杏会館，大阪府
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大面積電子ビーム照射によるエッジ部の形状変化に関する熱流体解析を用いた基礎的検討
田島響, 太田翔也, 篠永東吾, 岡本康寛, 岡田晃
日本機械学会 中国四国学生会 第52回学生員卒業研究発表講演会 2022.3.4
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大面積電子ビーム照射によるAl-Si合金AM造形物表面の機械的特性向上
片山貴史, 小林裕野, 篠永東吾, 山口篤, 岡田晃
2021年度精密工学会中国四国支部・九州支部共催岡山地方講演会 2021.11.27
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チタン合金AM造形物の表面仕上げにおけるブラスト処理とEBポリッシングの相乗効果
篠永東吾, 小林裕野, 片山貴史, 岡田晃, 辻俊哉
電気加工学会全国大会（2021） 2021.11.25
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大面積電子ビーム照射によるAl-Cu合金の耐食性向上に関する研究
渡部隼, 宮本郁也, 篠永東吾, 岡田晃
電気加工学会全国大会（2021） 2021.11.25
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Surface smoothing of AMed metal products by large-area EB irradiation Invited
Togo Shinonaga
28th Innovation Incubation Webinar 2021.10.29
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開口数がピコ秒レーザによるガラスの微細溶融溶接特性に及ぼす影響
篠永 東吾, 太田 元基, 渡邉 大祐, 岡本 康寛, 岡田 晃
2017年度精密工学会春季大会学術講演会講演 2017.3.13
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Nd:YAGレーザを用いた銅の微細溶接における光吸収特性 －光吸収率と溶融量の評価－
2017年度精密工学会中国四国支部 鳥取地方学術講演会 2017
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液相上の固相金属に対するレーザ穴加工とその貫通検出法に関する基礎的検討
2017年度精密工学会中国四国支部 鳥取地方学術講演会 2017
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純チタンの鉛直面リモートレーザ溶接における広範囲アルゴンガスシールド法
北川 京, 横原 和男, 岡本 康寛, 篠永 東吾, 岡田 晃, 落合 彦太郎, 木村 陵介, 小野 昇造, 赤瀬 雅之
2017年度精密工学会春季大会 2017
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細胞伸展制御のためのレーザ照射によるチタン合金等材料の表面改質
特異構造金属・無機融合高機能材料開発共同研究プロジェクト（６大学連携プロジェクト）大阪大学接合科学研究所 平成２６年度研究成果報告会 2015
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フェムト秒レーザーによる機能性セラミックスの穴あけ加工 －短波長化による損傷閾値の低下－
レーザー学会学術講演会第33回年次大会 2013
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短パルスレーザー照射による酸化亜鉛の材料特性変化Ⅱ - 透明導電膜へのフェムト秒レーザー照射
レーザー学会学術講演会第32回年次大会 2012
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酸化チタン膜裏面へのフェムト秒レーザー照射 －黒色化領域の形成・特性評価－
レーザー学会学術講演会 第31回年次大会 2011
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Femtosecond Laser Irradiation and Hydrothermal–electrochemical Treatment for Improving Bioactivity of the Ti-based Bulk Metallic Glass
LPM 2010 (11th International Symposium on the Laser Precision Microfabrication) 2010
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Awards
Awards
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電気加工学会全国大会賞
2024.12 一般社団法人電気加工学会 EBポリッシングによる金属AMラティス構造体の圧縮強度向上
篠永東吾, 三浦誠也, 山口篤, 岡田晃
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電気加工学会論文賞
2023.6 Japan Society of Electrical Machining Engineers
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電気加工学会全国大会賞
2022.6 一般社団法人電気加工学会 チタン合金AM造形物の表面仕上げにおけるブラスト処理とEBポリッシングの相乗効果
篠永東吾, 小林裕野, 片山貴史, 岡田晃, 辻俊哉
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優秀研究者賞
2022.3 公益社団法人精密工学会中国四国支部
篠永東吾
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レーザ加工学会誌ベストオーサー賞
2016.12 一般社団法人レーザ加工学 新機能生体材料創成のための短パルスレーザ照射によるチタン材の表面構造制御に関する研究
篠永東吾
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優秀ポスター賞
2016.12 一般社団法人レーザ加工学会 ガラスの微細レーザ溶接における開口数の影響
太田元基, 渡邉大祐, 篠永東吾, 岡本康寛, 岡田晃
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Excellent Paper Award
2016.4 18th CIRP Conference on Electro Physical and Chemical Machining (ISEM XVIII) Formation of Periodic Nanostructures with Femtosecond Laser for Creation pf New Functional Biomaterials
Togo Shinonaga
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ベストプレゼンテーション賞
2015.9 公益社団法人精密工学会 細胞伸展制御機能付与のための超短パルスレーザを用いたナノ周期構造形成に関する研究
篠永東吾
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Outstanding Presentation Award
2013.12 Improving the Biocompatibility of TiO2 Film Formed and Modified with Aerosol Beam and Femtosecond Laser
Togo Shinonaga
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優秀ポスター賞
2013.5 一般社団法人レーザ加工学会 フェムト秒レーザを用いた酸化チタン膜上への周期的微細構造形成による細胞伸展方向変化
篠永東吾
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レーザ加工学会誌ベストオーサー賞
2012.12 一般社団法人レーザ加工学会 フェムト秒レーザを用いて金属材料表面に形成されたナノ周期構造による機能性付加 -摩擦低減及び生体活性向上-
篠永東吾
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Merit for Best Poster Presentation
2012.11 AMDI-3 Periodic nanostructures formation on Titanium dioxide film by femtosecond laser irradiation for improving biocompatibility
T. Shinonaga, M. Tsukamoto, N. Horigutchi, A. Nagai, K. Yamashita, T. Hanawa, N. Matsushita, X. Guoqiang and N. Abe
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Award for Encouragement of Research in Thin Films
2011.11 Titanium dioxide film with lower electric resistance formed by CW fiber laser irradiation
Togo Shinonaga
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Research Projects
Research Projects
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Study on Improvement in Wire Electrical Discharge Machining Performance by Optimizing Flow of Dielectric Working Fluid
Grant number：24K00779 2024.04 - 2028.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
岡田 晃, 岡本 康寛, 篠永 東吾
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Highly Efficient Surface Smoothing of AMed Metal Products by EB Polishing
Grant number：24K07268 2024.04 - 2027.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
篠永 東吾, 岡本 康寛
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大面積電子ビーム照射法による革新的エッジ処理技術の開発
Grant number：22684224 2022.09 - 2023.09
国立研究開発法人 新エネルギー・産業技術総合開発機構（NEDO） 官民による若手研究者発掘支援事業（第4回）・マッチングサポートフェーズ マッチングサポートフェーズ
篠永東吾
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High-reliable and high-quality welding of Cu and Al by superposition of angled near-infrared laser and elliptic blue laser
Grant number：21H01227 2021.04 - 2025.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B) Grant-in-Aid for Scientific Research (B)
岡本 康寛, 岡田 晃, 篠永 東吾
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Authorship：Coinvestigator(s)
Grant amount：\17680000 （ Direct expense: \13600000 、 Indirect expense：\4080000 ）
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Highly Efficient Surface Smoothing by Clarification of EB Polishing Mechanism with Considering Flow of Material
Grant number：21K03807 2021.04 - 2024.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C) Grant-in-Aid for Scientific Research (C)
篠永 東吾, 岡本 康寛
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Authorship：Principal investigator
Grant amount：\4160000 （ Direct expense: \3200000 、 Indirect expense：\960000 ）
令和３年度の研究計画に挙げていた，大面積電子ビーム照射時における「凸部への電子集中現象の解明」に取り組んだ．はじめに，大面積電子ビーム照射装置を再現した電磁場解析モデルを構築した．実際の大面積電子ビーム照射装置と同様に，モデル内にカソード，アノードおよびソレノイドコイルを設置した．本解析モデルにより，電子ビーム照射中における工作物近傍の磁場を算出した結果，平坦形状と比較して凸部先端において磁束密度が増大する傾向が得られた．電子は磁力線に沿ってらせん運動しながら進む性質がある．すなわち，凸部先端への電子ビーム集中現象を解析的に明らかにすることができた．
次に，令和4年度の研究計画に挙げていた，電子ビームチャンバ内の真空雰囲気，金属材料の熱物性値や粘性などを考慮した熱流体解析モデルの構築を試みた．構築したモデルの解析精度を評価するため，工作物の形状を平坦形状とし，平坦形状の表面へ電子ビームの熱流束を与えた．その結果，実験で得られた電子ビーム照射1shot照射時の再凝固層厚さと，解析において得られた溶融層厚さがほぼ一致した．構築したモデルを用いて，表面に微細凹凸形状を付与した工作物に対して電子ビームを1shot照射した際の熱流体解析を行ったところ，微細凹凸形状表面の溶融，溶融金属の凸部から凹部への流動・再凝固層する過程が見られた．また，電子ビーム1shot照射後の微細凹凸形状変化が，解析と実験でほぼ一致することを明らかにした．さらに，EBポリッシング時において溶融金属が流動する駆動力は，表面張力の影響が大きいことが分かった． -
Study on Formation of High-performance Metal Mold Surface by EDM with Hybrid Metal Powder Mixed Fluid
Grant number：20H02050 2020.04 - 2024.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B) Grant-in-Aid for Scientific Research (B)
岡田 晃, 岡本 康寛, 北田 良二, 篠永 東吾
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Authorship：Coinvestigator(s)
Grant amount：\18200000 （ Direct expense: \14000000 、 Indirect expense：\4200000 ）
放電加工によって金型加工面へ表面粗さの小さいクロム炭化物含有表面層を形成する，高機能金型仕上げ面の創成を目的としている． 2020年度にクロム粉末混入放電加工による硬質クロム表面層形成について検討し，電気条件や加工液へのクロム粉末混入濃度が表面層組成や層厚さに及ぼす影響を明らかにした．また，電極材質の加工面への含有現象を利用したクロム含有層形成も可能であることが判明した．
これらの成果を基に，2021年度は，まず，炭化クロム含有層の表面粗さ低減のため，クロム粉末混入加工液に炭素粉末を混入して加工を行うハイブリッド粉末混入放電仕上げ加工を検討した．各粉末混入濃度や，放電加工条件の最適化検討を行ったが，粗さの低減にあまり効果がなかった．そこで，従来表面粗さ低減のために実用されているシリコン粉末混入放電加工を活用し，シリコン粉末とクロム粉末によるハイブリッド粉末混入放電加工を試みた．その結果，適切なシリコン粉末混入濃度の条件下では，加工面のクロム含有率をほとんど低減させることなく，表面粗さ約1.5μmRzまでの低減が可能となった．さらに，電気条件の最適化検討によって，極小の電流値で加工面でのクロム含有率を向上させ，かつ表面粗さを約1.0μmRzに低減できることが明らかとなった．この際クロム成分は表面全体に均一に分布し，良質なクロム炭化物含有層を形成できることが明らかとなった．
さらに，2020年度検討において電極材質の加工表面への含有が判明したため，クロム電極を用いたクロム炭化物含有層形成の後に，超硬合金電極を用いた仕上げ加工を行い，２層表面構造の創成について基礎的検討を進めた．電極消耗の大きい条件を用いることで電極のタングステン成分が加工面への含有可能かの基礎検討を行った．その結果，放電エネルギーの小さい条件の下でタングステン成分を加工面に薄く含有できることが判明した． -
Grant number：18K13673 2018.04 - 2021.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists Grant-in-Aid for Early-Career Scientists
Shinonaga Togo
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Authorship：Principal investigator
Grant amount：\4290000 （ Direct expense: \3300000 、 Indirect expense：\990000 ）
Bottom surface smoothing of high aspect ratio hole by EB polishing was proposed. As a basic study for control of magnetic field, magnet was set under the hole bottom surface, and magnetic field lines near the workpiece in large-area EB irradiation were calculated by electric magnetic field analysis. The magnetic field lines distributions show that the EB can be guided to the hole bottom surface since electrons tend to spirally move along the magnetic field lines. Experimental results clarified that the bottom surface of high aspect ratio hole can be uniformly smoothed by guiding the EB to the surface under control of magnetic field.
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High quality laser processing with low visibility for flexible film with transparent conductive layer
Grant number：18K03873 2018.04 - 2021.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C) Grant-in-Aid for Scientific Research (C)
Yasuhiro Okamoto
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Grant amount：\4290000 （ Direct expense: \3300000 、 Indirect expense：\990000 ）
In order to contribute the improvement of flexible interface used as important tools in the society to utilize information and communication technologies, high-quality removal method of silver nanowire transparent conductive film was investigated in the processing and visible characteristics by pulsed lasers of near-infrared wavelength. Under the irradiation conditions to achieve the sufficient insulation state by the removal of silver nanowires, shorter pulse duration can perform low thermal influence with color change, but the visibility of processing areas became more remarkable on the overcoat layer by the removal parts of silver nanowires. Thus, it was clarified that a nanosecond pulsed laser is more useful in order to perform the removal processing of silver nanowire transparent conductive film with low visibility, because gentle removal of silver nanowires is effective to keep small removal marks.
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Study on High-performance Surface Finishing by Large-area Electron Beam Irradiation
Grant number：16H04248 2016.04 - 2019.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B) Grant-in-Aid for Scientific Research (B)
Okada Akira
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Authorship：Coinvestigator(s)
Grant amount：\17810000 （ Direct expense: \13700000 、 Indirect expense：\4110000 ）
For high-performance surface finishing of metal molds by large-area electron beam irradiation method, the shape-changing phenomena were firstly discussed experimentally and analytically by using electron track analysis with electro-magnetic field simulation model and heat conduction analysis. Then, the applicability of this method to micro-burring were investigated, and it was clarified that high-efficient removal of micro-burr generated in thermal processing was possible by large-area EB irradiation method. Furthermore, control of electron beam track by changing magnetic field in the operating chamber was discussed, and the finishing of hole bottom surface was tried. As a result, the bottom surface could be successively finished under appropriate magnetic field and EB conditions. In addition, the influence of workpiece material properties on the surface smoothing characteristics were experimentally and analytically discussed for wide application of this method.
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Creation of next generation biomaterial by control of surface profiles with femtosecond laser
Grant number：15K18245 2015.04 - 2017.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B) Grant-in-Aid for Young Scientists (B)
Shinonaga Togo, TSUKAMOTO Masahiro
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Authorship：Principal investigator
Grant amount：\2080000 （ Direct expense: \1600000 、 Indirect expense：\480000 ）
Titanium alloys are the most used biomaterials. However, they have insufficient bioactivity. Therefore, it is required to add new function to titanium alloys. One method to add new function is the creation of periodic nanostructures on the surfaces, which can control cell spreading. Then, femtosecond laser is one of the useful tools to create periodic nanostructures which can be created on various metals by self-organizing in the laser focusing spot.
In this study, control of cell spreading on titanium material was examined by periodic nanostructures formation with femtosecond laser. It is clarified that period of the periodic nanostructures can be varied by laser wavelength. Then, cell test was conducted by using the titanium material which have periodic nanostructures with different periods. Results of cell test show that periods of about 300 and 600 nm are useful for control of cell spreading on titanium material surface. -
高度生体材料創製のためのフェムト秒レーザー照射による表面構造制御に関する研究
Grant number：13J00842 2013.04 - 2015.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows Grant-in-Aid for JSPS Fellows
篠永 東吾
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Authorship：Principal investigator
Grant amount：\2000000 （ Direct expense: \2000000 ）
昨年度で酸化チタン（TiO2）膜への周期的微細構造形成が可能であることや、骨芽細胞が周期的微構造の溝に沿って伸展する結果が得られた。今年度は形状変化だけではなく、材料特性の変化にも着目した。TiO2は真空雰囲気下で電気炉加熱を行うと酸素欠陥が生じることが知られている。レーザー照射により周期的微細構造を形成した酸化チタンに対して真空雰囲気下で電気炉を用いた全体加熱を行ったところ、周期的微細構造の形状は維持されていた。骨芽細胞を用いて培養試験を行った結果、細胞が溝に沿って伸展する結果が示唆された。
また、更なる高度生体材料の創製を目指し、細胞伸展に最適な周期について検討した。周期はレーザーの波長の変化によって制御を試みた。さらに、周期的微細構造形成メカニズムについても検討した。申請者らのグループでは、TiO2膜に対してフェムト秒レーザーを照射すると、多光子プロセス等による電子励起が生じる可能性を示唆している。すなわち、レーザー照射によりTiO2膜の表層への高密度電子励起層の形成が予測され、高密度電子励起層及び膜との界面へ表面プラズモン・ポラリトン（SPP）が形成される可能性が考えられる。SPPの波長が周期に起因すると考える本モデルをSPPモデルと呼ぶとする。波長775 nmの第二高調波である388 nmをTiO2膜上に照射すると周期的微細構造が形成され、TiO2膜上における周期はレーザー波長の30％程度であることが明らかになった。得られた周期の実測値は、SPPモデルによって計算される周期の範囲内であった。すなわち、TiO2膜への周期的微細構造形成は、SPPモデルによって形成される可能性が示唆された。以上のTiO2膜に対する周期的微細構造形成メカニズムに関する成果は、英文の論文（査読有り）において成果をまとめている。国内外の会議においても多数の成果を報告している。
Class subject in charge
Class subject in charge
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Experiments in Mechanical Engineering （2024academic year） Other - [第１学期]火5～8, [第２学期]不開講, [第３学期]火5～8, [第４学期]火5～8
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Experiments in Mechanical Engineering （2024academic year） Other - [第１学期]火5～8, [第２学期]不開講, [第３学期]火5～8, [第４学期]火5～8
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Experiments in Mechanical EngineeringⅡ （2024academic year） 3rd and 4th semester - 火5～8
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Experiments in Mechanical EngineeringI （2024academic year） 1st semester - 火5～8
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Research Works for Mechanical and Systems Engineering 1 （2024academic year） Prophase - その他
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Research Works for Mechanical and Systems Engineering 2 （2024academic year） Late - その他
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Seminar on Mechanical Engineering 1 （2024academic year） Prophase - その他
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Seminar on Mechanical Engineering 2 （2024academic year） Late - その他
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Advanced Study （2024academic year） Other - その他
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Laboratory Work and Practice on Basic Engineering （2023academic year） 1st and 2nd semester - 火5～8
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Laboratory Work and Practice on Basic Engineering （2023academic year） 1st and 2nd semester - 水5～8
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Laboratory Work and Practice on Basic Engineering （2023academic year） 1st and 2nd semester - 火5～8
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Research Works for Mechanical and Systems Engineering 1 （2023academic year） Prophase - その他
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Research Works for Mechanical and Systems Engineering 2 （2023academic year） Late - その他
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Seminar on Mechanical Engineering 1 （2023academic year） Prophase - その他
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Seminar on Mechanical Engineering 2 （2023academic year） Late - その他
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Advanced Study （2023academic year） Other - その他
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Laboratory Work and Practice on Basic Engineering （2022academic year） 1st and 2nd semester - 火5～8
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Research Works for Mechanical and Systems Engineering 1 （2022academic year） Prophase - その他
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Research Works for Mechanical and Systems Engineering 2 （2022academic year） Late - その他
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工学基礎実験実習 （2021academic year） １・２学期
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Research Works for Mechanical and Systems Engineering 1 （2021academic year） Prophase - その他
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Research Works for Mechanical and Systems Engineering 2 （2021academic year） Late - その他
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Introduction to Information Processing 2 （2020academic year） Second semester - 月1,月2
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Research Works for Mechanical and Systems Engineering 1 （2020academic year） Prophase - その他
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Research Works for Mechanical and Systems Engineering 2 （2020academic year） Late - その他