Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11217803 | Fuel cell system and method for inferring wet state of fuel cell | Shigeki Hasegawa, Kazuo Yamamoto | 2022-01-04 |
| 11088386 | Fuel cell monitoring device and method of determining state of fuel cell | Ikuyasu Kato, Miho Hatazaki, Kazuo Yamamoto, Shigeki Hasegawa | 2021-08-10 |
| 11081715 | Fuel cell system | Shigeki Hasegawa, Kazuo Yamamoto | 2021-08-03 |
| 10892500 | Fuel cell system | Yuji Ishikawa, Shigeki Hasegawa | 2021-01-12 |