Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875455 | Automobile exhaust gas recirculating system | Mitsuo Hitomi, Koji Onishi, Yoshikuni Yada, Hidetoshi Nobumoto, Makoto Hotate | 1989-10-24 |
| 4811231 | Apparatus for controlling fuel injection and swirl motion of air in internal combustion engine | Kenji Hataoka, Akinori Yamashita, Masanori Misumi | 1989-03-07 |