Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850317 | Intake port device | Takehiko Katsumoto, Yoshiaki Danno, Daisuke Sanbayashi, Takashi Dogahara, Katsuo Akishino +1 more | 1989-07-25 |
| 4813408 | Engine cooling device | Takehiko Katsumoto, Yoshiaki Danno, Daisuke Sanbayashi, Takashi Dogahara, Hidetsugu Kanao +8 more | 1989-03-21 |