Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880090 | Hydraulic controlling system for lockup clutches | — | 1989-11-14 |
| 4864892 | Automatic transmission mechanism | Youichi Hayakawa, Masaaki Nishida, Toshihiro Yamada | 1989-09-12 |