Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976904 | Method of manufacturing semiconductor device | Kohji Yamada, Hiroki Yaegashi, Hideaki Horikawa | 1999-11-02 |
| 4596164 | Air-fuel ratio control method for internal combustion engines for vehicles | Shumpei Hasegawa, Yutaka Otobe | 1986-06-24 |
| 4526153 | Air-fuel ratio control method for an internal combustion engine for vehicles in low load operating regions | Shumpei Hasegawa, Yutaka Otobe | 1985-07-02 |
| 4454854 | Exhaust gas recirculation control method for internal combustion engines for vehicles | Yutaka Otobe | 1984-06-19 |
| 4438627 | Exhaust gas purification apparatus in internal combustion engine | Akira Fujimura | 1984-03-27 |
| 4429676 | Exhaust gas recirculation control system for vehicle engines | Yutaka Otobe, Michio Kawamoto, Akira Fujimura | 1984-02-07 |
| 4349005 | Suction mixture control system for vehicle engines | Yutaka Otobe, Michio Kawamoto, Akira Fujimura | 1982-09-14 |
| 4349006 | Suction mixture control system for vehicle engines | Yutaka Otobe, Michio Kawamoto, Akira Fujimura | 1982-09-14 |
| 4336784 | Exhaust gas recirculation control system for engines | Yutaka Otobe, Michio Kawamoto, Akira Fujimura | 1982-06-29 |
| 4325348 | Exhaust gas recirculation system for internal combustion engine | Yoshiharu Abe, Akinobu Takagi | 1982-04-20 |