Rchr
J-GLOBAL ID:200901030280658922   Update date: Sep. 25, 2024

Iwai Katsumasa

イワイ カツマサ | Iwai Katsumasa
Affiliation and department:
Job title: Research Associate
Research field  (5): Electronic devices and equipment ,  Optical engineering and photonics ,  Medical systems ,  Biomaterials ,  Biomedical engineering
Research keywords  (7): 赤外レーザ ,  Er:YAGレーザ 中空ファイバ 結石破砕 ,  Calculus Fragmentation ,  Infrared Laser ,  Lithotripsy ,  Hollow fiber ,  Er:YAG laser
Research theme for competitive and other funds  (36):
  • 2023 - 2026 内視鏡の操作に有用な超弾性・記憶合金チューブを用いた柔軟・高効率赤外伝送路の製作
  • 2022 - 2025 歯科内視鏡用レーザーリーマーの高効率製作法
  • 2022 - 2025 内視鏡治療用超弾性・形状記憶合金パイプを用いる高効率無破断赤外伝送路の研究
  • 2019 - 2022 Non-breakable bioadaptive infrared hollow fiber for endoscope surgery
  • 2018 - 2021 Research on high-performance laser light transmission device without breakage for endoscopic surgery
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Papers (124):
  • Katsumasa Iwai. Research on Hollow Optical Fiber for Infrared Laser Light Transmission. The Review of Laser Engineering. 2024. 52. 1. 3-3
  • Michal Nemec, Helena Jelinkova, Jan Šulc, Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi. Delivery of Er:YAG laser radiation with repetition rate up to 150 Hz by a hollow glass waveguide. Solid State Lasers XXXII: Technology and Devices. 2023. 12399. 1-6
  • Michal Němec, Helena Jelínková, Jan Šulc, Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi. Investigations on transfer of the novel diode pumped Er:YAG laser radiation by special hollow glass waveguide. Solid State Lasers XXXI: Technology and Devices. 2022. 11980. 1-6
  • Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura. Transmission properties of 700-μm-bore hollow optical fibers based on flexible Ni-Ti tube. Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXII. 2022. 11953. 1-8
  • Katsumasa Iwai, Hiroyuki Takaku, Mitsunobu Miyagi, Yi-Wei Shi, Xiao-Song Zhu, Yuji Matsuura. Fabrication of 800-μm-bore hollow optical fibers based on completely non-fragile and flexible Ni-Ti tube for the infrared. Optical Fibers and Sensors for Medical Diagnostics, Treatment and Environmental Applications XXI. 2021. 11635
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MISC (175):
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Patents (4):
  • 医療用レーザ装置
  • 高強度中空ファイバ
  • medical laser system
  • Rugged hollow fiber
Books (5):
  • Hollow core optical fibers
    MDPI Books 2019 ISBN:9783039210886
  • Research on ErYAG laser light transmission system and the medical treatment application
    A doctoral dissertration of tohoku university 2003
  • Er:YAGレーザ光伝送システムとその医療応用に関する研究
    東北大学博士学位論文 2003
  • Research on design and analysis of tapered optical coupler
    A master's thesis of tohoku university 2000
  • テーパ型光結合器の設計・解析に関する研究
    東北大学修士学位論文 2000
Lectures and oral presentations  (195):
  • Fabrication of 100-μm-bore-silver-hollow Fiber Tip by Using Dummy Tubes
    (2024)
  • 内径100μm銀中空ファイバ先端素子の製作法の改善
    (2023年電子情報通信学会エレクトロニクスソサイエティ大会 2023)
  • 赤外光複合伝送用内径 320 μ m 光学ポリマー内装銀中空ファイバの製作
    (2023年度電気関係学会東北支部連合大会 2023)
  • CO2レーザー光伝送用Ni-Ti管を用いた内径533μm中空ファイバの伝送特性
    (レーザー学会学術講演会第43回年次大会 2023)
  • 内径533μm銀中空Ni-Tiファイバの伝送特性
    (2022年電子情報通信学会エレクトロニクスソサイエティ大会 2022)
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Works (9):
  • grant JSPS No. 19760240
    2007 - 2008
  • Health and Labour Science Research Grants H20-nano-young-010
    2008 -
  • grant JSPS No. 17760285
    2005 - 2006
  • “東北大: レーザーで結石破壊,” O. plus E. pp. 1286-1287, 2002年11月.
    2002 -
  • “東北大 レーザーで結石破壊,”日経産業新聞 p. 15, 掲載日 2002年10月1日
    2002 -
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Education (2):
  • - 1998 Nihon University College of Engineering
  • - 1998 Nihon University Faculty of Engineering Electrical engineering
Professional career (3):
  • Ph. D (Tohoku University)
  • Doctor(Engineering) (Tohoku University)
  • Master(Engineering) (Tohoku University)
Work history (4):
  • 2017/04 - 現在 Sendai National College of Technology Department of General Engineering
  • 2010/03 - 2017/03 Sendai National College of Technology Department of Information Networks
  • 2003 - 2004 Tohoku University Graduate School of Engineering
  • 2003 - 2004 Research Associate, Graduate School of Engineering, Tohoku University2004-2007 Research Associate, Sendai National College of Thechnology2007- Research Associate, Sendai National College of Thechnology
Committee career (1):
  • 2022/06 - 2024/05 レーザー学会 研究委員会 委員
Awards (8):
  • 2008 - 財団法人石田記念財団 平成20年度石田記念財団研究奨励賞
  • 2008 - Research encouragement prize of M.Ishida Foundation
  • 2007 - 財団法人トーキン科学技術振興財団 平成18年度研究奨励賞
  • 2007 - 財団法人インテリジェント・コスモス学術振興財団 第6 回インテリジェント・コスモス奨励賞
  • 2007 - Research encouragement prize of Tokin Science Technology Development
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Association Membership(s) (7):
THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN ,  レーザー学会 ,  電子情報通信学会 ,  Information and Communication Engineers ,  The Institute of Electronics ,  The Laser Society of Japan ,  EiC
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