Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33027 | Engine idling speed controlling system | Akira Takahashi, Kazumasa Iida, Toru Hashimoto, Yasukuki Okamoto, Kenzo Nakao | 1989-08-22 |
| 4850317 | Intake port device | Takehiko Katsumoto, Daisuke Sanbayashi, Takashi Dogahara, Katsuo Akishino, Osamu Hirako +1 more | 1989-07-25 |
| 4815419 | Engine cooling apparatus | Taizo Kitada, Mituru Kishimoto, Atsuo Sato, Nobuaki Shimizu, Yoshinari Fukami +1 more | 1989-03-28 |
| 4813408 | Engine cooling device | Takehiko Katsumoto, Daisuke Sanbayashi, Takashi Dogahara, Hidetsugu Kanao, Katsuo Akishino +8 more | 1989-03-21 |