Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9700161 | Exhaust valve apparatus and gas filled cushion | Katsutoshi Yoshifusa, Hirotaka Yoshifusa | 2017-07-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9700161 | Exhaust valve apparatus and gas filled cushion | Katsutoshi Yoshifusa, Hirotaka Yoshifusa | 2017-07-11 |