Rchr
J-GLOBAL ID:200901033647570759
Update date: Feb. 01, 2024
Hirai Naoshi
ヒライ ナオシ | Hirai Naoshi
Affiliation and department:
Job title:
Senior Researcher(Professor)
Research field (1):
Electric/electronic material engineering
Research keywords (1):
Electronics and Electric Material
Research theme for competitive and other funds (7):
- 2012 - 2013 Dielectric Properties and Insulation Diagnosis of Polymers by Ultra-wideband Dielectric and Absorption Spectroscopy
- 2011 - 2013 Development of High Performance Insulating Materials Using Polymer Nanocomposites with Inorganic Fillers
- 2011 - 2013 Evaluation of Oxidation for Biodegradable Polymers by the Measurement of Chemiluminescence
- 2008 - 2010 Dominant factors influencing dielectric properties in several biodegradable polymers
- 2007 - 2008 テラヘルツ分光によるポリマーナノコンポジットの優れた誘電特性出現機構の解明
- 2002 - 2004 Development of Functional Dielectrics for Future All-Solid Substations
- 高分子絶縁材料中の不純物が絶縁特性に与える影響の解明と直流ケーブル用材料の開発
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Papers (99):
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Yoshimichi Ohki, Naoshi Hirai. Successful detection of insulation degradation in cables by frequency domain reflectometry. Minerals, Metals and Materials Series. 2018. 11. 77-85
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Yoshimichi Ohki, Naoshi Hirai, Daomin Min, Liuqing Yang, Shengtao Li. Degradation of silicone rubber analyzed by instrumental analyses and dielectric spectroscopy. Minerals, Metals and Materials Series. 2018. 11. 107-116
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Takuya Kozai, Takuya Kaneko, Naoshi Hirai, Yoshimichi Ohki. Identification of antioxidants in polymeric insulating materials by terahertz absorption spectroscopy. Polymer Degradation and Stability. 2018. 147. 284-290
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Ryosuke Yanashima, Naoshi Hirai, Yoshimichi Ohki. Effects of addition of MgO fillers with various sizes and co-addition of nano-sized SiO2 fillers on the dielectric properties of epoxy resin. Proceedings of the International Symposium on Electrical Insulating Materials. 2017. 2. 650-653
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Takuya Kaneko, Naoshi Hirai, Yoshimichi Ohki. Terahertz absorption spectroscopy of poly(ether ether ketone). Proceedings of the International Symposium on Electrical Insulating Materials. 2017. 2. 539-542
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Patents (3):
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絶縁電線又はケーブルの温度変化箇所の位置標定方法
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絶縁電線又はケーブルの歪み量変化箇所の位置標定方法
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電気絶縁材料及びそれを用いた絶縁電線、通信用ケーブル、電気部品
Education (2):
- - 1998 Ehime University Graduate School, Division of Engineering
- - 1994 Konan University Faculty of Science
Professional career (4):
- 博士(工学) (愛媛大学)
- (BLANK)
- 修士(理学) (甲南大学)
- (BLANK)
Awards (2):
- 2000 - 電気学会優秀論文発表賞
- 1993 - 電気学会優秀論文発表賞
Association Membership(s) (2):
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