Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5178106 | Valve timing control apparatus | — | 1993-01-12 |
| 5167206 | Continuously variable valve timing control system | — | 1992-12-01 |
| 5156119 | Valve timing control apparatus | — | 1992-10-20 |
| 5150671 | Intake- and/or exhaust-valve timing control system for internal combustion engines | — | 1992-09-29 |
| 5129370 | Valve timing control device for automotive internal combustion engine clutch mechanism | Shoji Morita | 1992-07-14 |
| 5117785 | Valve timing control device for internal combustion engine | Hideaki Onishi | 1992-06-02 |
| 5113814 | Valve timing control system for internal combustion engine with enhanced response characteristics in adjustment of valve timing | Shoji Morita | 1992-05-19 |
| 5088456 | Valve timing control system to adjust phase relationship between maximum, intermediate, and minimum advance position | — | 1992-02-18 |
| 5058539 | Valve timing adjusting system for internal combustion engine | Masaharu Saito, Seiji Tsuruta, Katsuhiko Uchida | 1991-10-22 |
| 5056479 | Valve timing control device for internal combustion engine | — | 1991-10-15 |
| 5040499 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Akio Akasaka | 1991-08-20 |
| 5012773 | Intake- and/or exhaust-valve timing control system for internal combustion engine | Akio Akasaka, Yasuo Fukuda, Takanori Sawada | 1991-05-07 |
| 4996955 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Akio Akasaka, Kenzi Ohizumi, Akiro Kadowaki, Masayuki Washio | 1991-03-05 |
| 4960084 | Valve timing control system for internal combustion engine | Akio Akasaka, Makoto Yasuda | 1990-10-02 |
| 4936264 | Intake- and/or exhaust-valve timing control system for internal combustion engines | — | 1990-06-26 |
| 4934347 | Variable compression piston arrangement for internal combustion engine | Tatsuyuki Matsuya, Seinosuke Hara, Hiromichi Ofuji, Takayuki Arai, Takaharu Goto | 1990-06-19 |
| 4811698 | Valve timing adjusting mechanism for internal combustion engine for adjusting timing of intake valve and/or exhaust valve corresponding to engine operating conditions | Akio Akasaka, Takanori Sawada | 1989-03-14 |
| 4809650 | Variable compression control arrangement for internal combustion engine | Takayuki Arai, Hiromichi Ofuji, Takaharu Goto, Takehisa Kondo, Seinosuke Hara +2 more | 1989-03-07 |