Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884653 | Method of controlling a four wheel drive vehicle | — | 1989-12-05 |
| 4867732 | Control device for belt-and-pulley type continuously variable transmission for a vehicle | Yoshinobu Soga, Masami Sugaya, Susumu Okawa | 1989-09-19 |
| 4858497 | Hydraulic control system for continuously variable transmission for automotive vehicle | — | 1989-08-22 |
| 4857034 | Hydraulic control system for continuously variable transmission for automotive vehicle | Susumu Okawa, Masami Sugaya, Yoshinobu Soga | 1989-08-15 |