Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11380929 | Fuel cell system and control method thereof | — | 2022-07-05 |
| 11183704 | Fuel cell module and fuel cell system | Atsushi Koizumi | 2021-11-23 |
| 11088384 | Fuel cell module | Hideichi Yamamura | 2021-08-10 |
| 11011770 | Fuel cell module and fuel cell system | Atsushi Koizumi | 2021-05-18 |
| 10826096 | Fuel cell system | Jun Mizuno, Keiji Tsukamoto, Hiroki Homma | 2020-11-03 |
| 9614233 | Fuel cell module | Keiji Tsukamoto, Hiroki Homma, Hideichi Yamamura | 2017-04-04 |
| 8735020 | Fuel cell | Keiji Tsukamoto | 2014-05-27 |
| 7655336 | Fuel-cell system | Go Muto, Haruo Nakamura, Hiroshi Umeno | 2010-02-02 |
| 7399548 | Fuel cell stack | Koji Okazaki, Hiroshi Umeno, Tsutomu Hatsugai | 2008-07-15 |
| 5460744 | Agents used for improving the bottom and water quality in water areas where sludge is deposited | Shigeshisa Iwai, Michiharu Kobayashi, Chihiro Uchida, Koji Kuroda | 1995-10-24 |
| 5387343 | Method for improving bottom and water quality in water areas and a set of agents used in the method | Shigehisa Iwai, Michiharu Kobayashi, Chihiro Uchida, Koji Kuroda | 1995-02-07 |