JN

Jun Narushima

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
ER East Japan Railway: 1 patents #9 of 63Top 15%
HP Hitachi Industrial Products: 1 patents #30 of 86Top 35%
HH Hitachi Mitsubishi Hydro: 1 patents #10 of 24Top 45%
Overall (All Time): #914,575 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12355377 Adjustable speed generator motor system with full power converter Akira Bando, Takahiko Kikui, Kenta Watanabe, Yasuhiro Kiyofuji, Masakazu Ishikawa +3 more 2025-07-08
9917534 Power conversion device with a plurality of series circuits Shigenori Inoue, Shuji Katoh, Tetsuya Kato 2018-03-13
9573489 Control device for railway power conditioner and control system for railway power conditioner Yasuhiro Nakatsuka, Yasuhiro Imazu, Osamu Sakuchi, Masaya Ichinose, Yasuhiro Kiyofuji +6 more 2017-02-21
9461560 Power conversion device with a plurality of series circuits Shigenori Inoue, Shuji Katoh, Tetsuya Kato 2016-10-04
8792261 Power conversion device Shigenori Inoue, Shuji Katoh, Tetsuya Kato 2014-07-29