Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12428118 | Fuel cell ship | Yasuyoshi Yamaguchi, Takuya Hiraiwa, Manabu Shinagawa, Yukihiko Kimura | 2025-09-30 |
| 12407005 | Fuel cell ship | Takuya Hiraiwa, Yasuyoshi Yamaguchi, Manabu Shinagawa, Yukihiko Kimura | 2025-09-02 |
| 12401050 | Fuel cell ship | Yasuyoshi Yamaguchi, Takuya Hiraiwa, Manabu Shinagawa, Yukihiko Kimura | 2025-08-26 |
| 12394809 | Fuel cell ship | Manabu Shinagawa, Yasuyoshi Yamaguchi, Takuya Hiraiwa, Yukihiko Kimura | 2025-08-19 |
| 12394810 | Fuel cell ship | Yasuyoshi Yamaguchi, Takuya Hiraiwa, Manabu Shinagawa, Yukihiko Kimura | 2025-08-19 |
| 10050293 | Method for operating fuel cell system and method for estimating composition of fuel used in fuel cell system | Kunihiro Ukai | 2018-08-14 |
| 9871264 | Fuel cell system | Miki Dohkoshi, Kunihiro Ukai | 2018-01-16 |
| 9515329 | Fuel cell system | Shigenori Onuma, Kunihiro Ukai | 2016-12-06 |