Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889507 | Outboard propulsion unit supporting system | Hideo Tahara, Novuo Makihara | 1989-12-26 |
| 4888392 | Copolymer of sulfur dioxide and polyalkylpolysilylstyrene | Minoru Matsuda, Seiki Itoh | 1989-12-19 |
| 4885400 | Production process of 2-chloropropionaldehyde | Takaharu Kasuga | 1989-12-05 |
| 4878865 | Outboard propulsion unit supporting system for boat | Novuo Makihara, Norimasa Kawamura | 1989-11-07 |
| 4825003 | Production process of 2-chloropropionaldehyde | Takaharu Kasuga, Shinji Kiyono, Yoshihiro Fujita | 1989-04-25 |