Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857089 | Ceramic honeycomb filter for purifying exhaust gases | Jun Kitagawa, Toshihiko Hijikata | 1989-08-15 |
| 4853731 | Autofocus camera having automatic focus adjustment apparatus | Masao Tsujimura, Masamichi Hirooka, Takayoshi Morooka, Masaki Noda, Mamoru Akiyama +2 more | 1989-08-01 |
| 4835694 | Control system for automatic transmission | Keiichi Yamamoto | 1989-05-30 |
| 4825366 | Lockup control system for automatic transmission | Keiichi Yamamoto | 1989-04-25 |
| 4811827 | Lock-up clutch control method in automatic transmissions for automotive vehicles | Yoshinori Nishi | 1989-03-14 |
| 4809565 | Hydraulic control system for automatic transmission | Norishige Yoshikawa | 1989-03-07 |
| 4803555 | Method of driving a solid state image pickup device | Kenichi Shinbori | 1989-02-07 |