Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6874456 | Valve operating apparatus of internal combustion engines | Yoshihiko Yamada | 2005-04-05 |
| 6868812 | Valve timing control system for internal combustion engine | Masaharu Saito, Hideaki Nakamura | 2005-03-22 |
| 5592910 | Camshaft phase changing device | Seiji Suga, Hiroaki Imai | 1997-01-14 |
| 5247914 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Hiroaki Imai, Masaharu Saito, Ikuo Misumi, Seija Suga | 1993-09-28 |
| 5209193 | Intake- and/or exhaust-valve timing control system for internal combustion engines | Seiji Suga | 1993-05-11 |
| 5058539 | Valve timing adjusting system for internal combustion engine | Masaharu Saito, Seiji Tsuruta, Seiji Suga | 1991-10-22 |