Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11152630 | Fuel cell system | Kazuo Yamamoto, Shigeki Hasegawa | 2021-10-19 |
| 11088386 | Fuel cell monitoring device and method of determining state of fuel cell | Chiaki Mizutani, Ikuyasu Kato, Kazuo Yamamoto, Shigeki Hasegawa | 2021-08-10 |