Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850935 | Transmission ratio control system for a continuously variable transmission | — | 1989-07-25 |
| 4843918 | System for controlling a continuously variable transmission having a torque converter | — | 1989-07-04 |
| 4819513 | Transmission ratio control system for a continuously variable transmission | — | 1989-04-11 |
| 4794819 | Control system for a continuously variable transmission | Hiroshi Tanaka | 1989-01-03 |