Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881626 | Power transmission apparatus for vehicle of four-wheel drive type | — | 1989-11-21 |
| 4829769 | Hydraulic transmission coupling apparatus | — | 1989-05-16 |
| 4813307 | Method of controlling hydraulic pressure for an automatic transmission gear system | Bonnosuke Takamiya, Yuichi Tanaka | 1989-03-21 |