Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817469 | Automatic transmission for automobile and method of controlling same | Takashi Shigematsu, Tomoyuki Watanabe, Daisaku Sawada | 1989-04-04 |
| 4811222 | Method and apparatus for controlling electromagnetic powder clutch for vehicle | Tomoyuki Watanabe, Takashi Hayashi, Takashi Shigematsu | 1989-03-07 |
| 4803628 | Method and apparatus for controlling electro-magnetic particle clutch | Takashi Hayashi, Tomoyuki Watanabe, Takashi Shigematsu | 1989-02-07 |