EO

Eiji Okawachi

TO Toyota: 16 patents #1,599 of 26,838Top 6%
JT Jtekt: 6 patents #275 of 1,969Top 15%
Overall (All Time): #285,152 of 4,157,543Top 7%
16
Patents All Time

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #TitleCo-InventorsDate
12313224 Hydrogen filling method, hydrogen filling apparatus, program, and record medium Shota YAMAMOTO, Hiroki Yahashi, Toshiyuki Kondo 2025-05-27
11374243 Fuel cell system and fuel cell vehicle 2022-06-28
10996691 Pressure reducing valve device Akira Nakano, Toshikatsu Kubo, Shota Yamamato, Akira Yamashita, Yutaka Hotta 2021-05-04
10493843 Vehicle 2019-12-03
10081242 Fuel cell vehicle 2018-09-25
9897219 Pressure reduction valve and gas supply device Norihiko Saito, Sogo Goto, Masaaki Kondo, Akira Yamashita, Munetoshi Kuroyanagi +2 more 2018-02-20
9874289 Valve main unit and method of manufacturing the same Kazuhisa Sugiyama, Koji Nishi, Yutaka Inada, Akira Yamashita 2018-01-23
9822884 Valve device and poppet Junya MIYAKE, Koji Nishi, Kazuhisa Sugiyama, Takumi Mio, Sachiko Kubota +2 more 2017-11-21
9810327 Pressure reducing valve Toshihiko Shima, Takashi Iwaguchi, Hidetoshi Fujiwara, Munetoshi Kuroyanagi, Toshikatsu Kubo +3 more 2017-11-07
9464731 Pressure reducing valve Kazuo Haneda, Toshikatsu Kubo, Akira Yamashita 2016-10-11
9249935 Fuel supply system Kazushi Numazaki 2016-02-02
9109750 Gas filling method, gas filling system, gas station and mobile unit Tsukuo Ishitoya 2015-08-18
8770012 Fuel leakage detection system and detection method Hiroki Yahashi, Tsukuo Ishitoya 2014-07-08
8550105 Valve system of high pressure tank for vehicle Tsukuo Ishitoya, Kazushi Numazaki, Hisanori Kondo, Koji Koide 2013-10-08
8522834 Gas filling device, gas filling system, gas filling method and moving device 2013-09-03
8435700 Fuel cell system with fuel tank liner, method for supplying fuel gas, and mobile body Tsukuo Ishitoya 2013-05-07