Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887692 | Noise reducing device for marine propulsion | Hiroaki Outani | 1989-12-19 |
| 4871996 | Warning system for watercraft | Kanichi Tsunamoto | 1989-10-03 |
| 4850908 | Drawing away device of bilge water for water jet propulsion | Ryoichi Nakase | 1989-07-25 |
| 4817466 | Remote control system for marine engine | Minoru Kawamura | 1989-04-04 |
| 4813898 | Water jet propulsion | Ryoichi Nakase, Masayoshi Nanami | 1989-03-21 |