Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813898 | Water jet propulsion | Ryoichi Nakase, Seiji Inoue | 1989-03-21 |
| 4811560 | Exhaust system for marine propulsion | Ryoichi Nakase | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4813898 | Water jet propulsion | Ryoichi Nakase, Seiji Inoue | 1989-03-21 |
| 4811560 | Exhaust system for marine propulsion | Ryoichi Nakase | 1989-03-14 |