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J-GLOBAL ID：200901073311444552 Update date: Mar. 14, 2025

Ohsaki Hiroyuki

オオサキヒロユキ | Ohsaki Hiroyuki

Affiliation and department：
Job title： Professor
Homepage URL (1)： http://www.ohsaki.k.u-tokyo.ac.jp/ohsaki/

Research field (1)： Electrical power engineering

Research keywords (2)： Electric Machinery , Applied superconductivity

Research theme for competitive and other funds (22)：

2016 - 2021 Development of a compact NMR(MRI) system using REBCO/MgB2 superconducting bulk magnets
2017 - 2020 Development of rotating cold half wave plate for the next generation CMB experiment
2015 - 2018 Development of cryogenically cooled broadband polarization modualtor to probe the inflationary universe
2013 - 2017 Development of a magnetic probe for identifying the sentinel lymph node
2012 - 2016 Development of a compact NMR(MRI) system using superconducting bulk magnets

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Papers (214)：

Satsuki Okumura, Kotaro Iida, Yutaka Terao, Hiroyuki Ohsaki, Tomotake Matsumura. Numerical analysis and experiments of levitation force and bearing stiffness of superconducting magnetic bearings. Physica C: Superconductivity and its Applications. 2025. 631. 1354680-1354680
Yutaka Terao, Keiichi Okai, Hiroyuki Ohsaki, Takayuki Kojima, Hideyuki Taguchi. Evaluation of the Power Density and Efficiency of Superconducting Propulsion Units for Electric Aircraft Based on Aerodynamic and Electrical Coupled Analysis under Partial Load Conditions. JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 2025. 73. 1. 10-18
Ryota Takaku, Kosuke Aizawa, Ryosuke Akizawa, Gilberto Goracci, Thuong D. Hoang, Teruhito Iida, Kiyoshi Ikuma, Kuniaki Konishi, Mitsuharu Kusama, Clément Leloup, et al. Development status of the polarization modulator using 330 mm diameter sapphire-based achromatic half-wave plate for LiteBIRD. Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XII. 2024. 96-96
Yutaka Terao, Satsuki Okumura, Hiroyuki Ohsaki. Study on Electric and Magnetic Loadings in Fully Superconducting Motor Design. Physica C: Superconductivity and its Applications. 2024. 617
Gaotai Lyu, Yutaka Terao, Hiroyuki Ohsaki. HTS Cable Design for Aircraft Application Considering Fault Conditions. IEEE Transactions on Applied Superconductivity. 2024

MISC (211)：

Yutaka TERAO, Hiroyuki OHSAKI. Technology Trends of Superconducting Rotating Machines for Aircraft Propulsion Systems. TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 2022. 57. 2. 71-78
吉田良行, 東陽一, 山口浩, 奥村元, 礒嶋茂樹, 岡田道哉, 外山健太郎, 恩地俊行, 鳥羽章夫, 飯島康裕, et al. MW class power system for hybrid aircraft consisting of SiC power converters and liquid nitrogen cooled DC cable. 飛行機シンポジウム講演集(CD-ROM). 2020. 58th
山口浩, 吉田良行, 東陽一, 礒嶋茂樹, 奥村元, 岡田道哉, 外山健太郎, 恩地俊行, 鳥羽章夫, 飯島康裕, et al. MW class power system for hybrid aircraft consisting of SiC power electronics and liquid nitrogen cooled DC cable: 1. 飛行機シンポジウム講演集(CD-ROM). 2020. 58th
榎田壽史, 石田裕亮, 大崎博之, 寺尾悠, 松村知岳, 櫻井雄基, 菅井肇, 片山伸彦. Investigation of Analysis Method and Model Using Finite Element Method for Electromagnetic Analysis of Superconducting Magnetic Bearing. 電気学会全国大会講演論文集(CD-ROM). 2020. 2020
榎田壽史, 廣田幸真, 大崎博之, 寺尾悠, 松村知岳, 櫻井雄基, 菅井肇, 片山伸彦. LiteBIRDに搭載される偏光変調器のための超電導磁気軸受と同期モータの回転損失. 電磁力関連のダイナミクスシンポジウム講演論文集. 2019. 31st (CD-ROM)

Patents (10)：

Books (3)：

Lectures and oral presentations (2)：

Development of REBCO HTS magnet for 10 MW wind turbine generator
(International Workshop on Cooling-system for HTS Applications 2015 (IWC-HTS 2015) 2015)
Feasibility study of superconducting power cables for DC electric railway feeding systems in view of thermal condition at short circuit accident
(International Workshop on Cooling-system for HTS Applications 2015 (IWC-HTS 2015) 2015)

Education (2)：

1983 - 1988 The University of Tokyo Graduate School of Engineering Department of Electrical Engineering
1979 - 1983 The University of Tokyo Faculty of Engineering Department of Electrical Engineering

Professional career (1)：

Work history (7)：

2004/09 - 現在 The University of Tokyo Department of Advanced Energy, Graduate School of Frontier Sciences Professor
2019/04 - 2021/03 The University of Tokyo Graduate School of Frontier Sciences Dean
1999/04 - 2004/08 The University of Tokyo Department of Advanced Energy, Graduate School of Frontier Sciences Associate Professor
1995/04 - 1999/03 The University of Tokyo Department of Electrical Engineering, School of Engineering Associate Professor
1993/04 - 1995/03 The University of Tokyo Department of Electrical Engineering, Faculty of Engineering Associate Professor

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Awards (11)：

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Association Membership(s) (6)：

電気設備学会 , IEEE , 日本AEM学会 , Cryogenics and Superconductivity Society of Japan , Institute of Electrical Engineers of Japan , Institute of Physics

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