Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4539951 | Variable valve timing mechanism | Seinosuke Hara, Yasuo Matsumoto, Yasuo Yoshikawa | 1985-09-10 |
| 4526142 | Variable valve timing arrangement for an internal combustion engine or the like | Seinosuke Hara, Shunichi Aoyama | 1985-07-02 |
| 4509481 | Internal combustion engine with cooling system | Shinichi Nagumo, Hiromichi Ofuji | 1985-04-09 |
| 4503818 | Variable valve timing arrangement for an internal combustion engine or the like | Seinosuke Hara | 1985-03-12 |
| 4498432 | Variable valve timing arrangement for an internal combustion engine or the like | Seinosuke Hara, Shunichi Aoyama | 1985-02-12 |
| 4352344 | Valve operating mechanism for internal combustion engines | Shunichi Aoyama | 1982-10-05 |