Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12136749 | Seal structure for fuel cell separator | Shigeru Watanabe | 2024-11-05 |
| 11973246 | Method for manufacturing fuel battery cell separator gasket | Shigeru Watanabe | 2024-04-30 |
| 11888103 | Separator-integrated gasket | Shigeru Watanabe | 2024-01-30 |