Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934347 | Variable compression piston arrangement for internal combustion engine | Seiji Suga, Tatsuyuki Matsuya, Seinosuke Hara, Takayuki Arai, Takaharu Goto | 1990-06-19 |
| 4809650 | Variable compression control arrangement for internal combustion engine | Takayuki Arai, Takaharu Goto, Takehisa Kondo, Seinosuke Hara, Seiji Suga +2 more | 1989-03-07 |
| 4759321 | Valve timing arrangement for internal combustion engine having multiple inlet valves per cylinder | Yasuo Matsumoto, Seinosuke Hara | 1988-07-26 |
| 4708101 | Driving apparatus for intake and exhaust valves of internal combustion engine | Seinosuke Hara, Kazuyuki Miisyo, Yasuo Matsumoto, Manabu Kato | 1987-11-24 |
| 4509481 | Internal combustion engine with cooling system | Shinichi Nagumo, Kazuyuki Miisho | 1985-04-09 |
| 4438736 | Variable valve timing arrangement with automatic valve clearance adjustment | Seinosuke Hara, Takaharu Gotou | 1984-03-27 |
| 4297302 | Butterfly throttle valve with a raised upper lip | Ken Nakamura, Junichi Yokoyama | 1981-10-27 |
| 4236493 | EGR Control system | Ken Nakamura, Yasuo Nakajima, Eiji Murata | 1980-12-02 |