Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873961 | Air-fuel ratio control for supercharged automobile engine | — | 1989-10-17 |
| 4846497 | Automatic seatbelt system for vehicle | Kenji Matsui, Tatsuo Yamashita, Kouji Sakakura | 1989-07-11 |