Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4924823 | Six stroke internal combustion engine | Yukihiro OGURA | 1990-05-15 |
| 4727717 | Exhaust gas cleaning system for multi-cylinder internal combustion engines | Makoto Hirano, Masafumi Araki | 1988-03-01 |
| 4723619 | Cover structure for power transmission device | Sadashi Yamamoto, Shigenaga Enoki | 1988-02-09 |
| 4671781 | Cooling system for a belt type transmission | Kunihiko Tanaka, Hideo Ochiai | 1987-06-09 |
| 4546843 | Cooling system | Yutaka Koinuma, Akira Hayashi | 1985-10-15 |
| 4531928 | Belt transmission having air cooling function | — | 1985-07-30 |
| 4499724 | Exhaust gas cleaning device for internal combustion engine of motorcycle | Shuso Ueda, Masafumi Araki | 1985-02-19 |
| 4493677 | Belt transmission having circulated air cooling function | — | 1985-01-15 |
| 4492209 | Exhaust gas recirculation system | Junji Otani, Masafumi Araki | 1985-01-08 |
| 4476676 | Secondary air supply control device for exhaust gas purifying apparatus of internal combustion engines | Yoichi Ishida | 1984-10-16 |
| 4454714 | Exhaust gas cleaning device for internal combustion engines | Makoto Hirano, Seishi Miura | 1984-06-19 |
| 4450683 | Exhaust gas cleaning system for internal combustion engines | Yoichi Ishida | 1984-05-29 |
| 4450684 | Exhaust gas cleaning system for internal combustion engine | Junji Otani, Hiroshi Kato | 1984-05-29 |
| 4437306 | Exhaust gas cleaning device of internal combustion engine | Kanau Iwashita, Hikaru KIMURA | 1984-03-20 |
| 4437304 | Structure for controlling operations of secondary air supply means and throttle opener in internal combustion engine for motorcycles | Shuso Ueda, Masafumi Araki | 1984-03-20 |
| 4437305 | Exhaust gas cleaning system for internal combustion engines | Masafumi Araki, Yozi Shimizu | 1984-03-20 |
| 4434615 | Exhaust gas cleaning device of internal combustion engines | Yoichi Ishida | 1984-03-06 |
| 4430857 | Exhaust gas cleaning system for a V-type internal combustion engine | Youzi Simizu | 1984-02-14 |
| 4417442 | Exhaust gas cleaning system for an internal combustion engine | Makoto Hirano, Yoji Shimizu, Masaaki Matsuura | 1983-11-29 |
| 4413392 | Method of making two-stage catalytic converter | Junji Otani, Kanau Iwashita | 1983-11-08 |
| 4397817 | Catalytic converter | Junji Otani, Kanau Iwashita, Kazuo Fujiwara | 1983-08-09 |
| 4387565 | Exhaust gas cleaning system for multi-cylinder internal combustion engine | Junji Otani | 1983-06-14 |
| 4354463 | Device for improving combustion efficiency of mixture in four cycle internal combustion engine | Junji Otani | 1982-10-19 |
| 4354349 | Exhaust system for an internal combustion engine | Junji Otani | 1982-10-19 |
| 4317438 | High power output engine | Shizuo Yagi, Junji Otani, Hiroshi Kogure | 1982-03-02 |