Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5069192 | Internal combustion engine with crankcase ventilation system | Eiichi Matsumoto | 1991-12-03 |
| 5000142 | Chain cover apparatus for engine | Yoshio Iwasa | 1991-03-19 |
| 4977870 | Internal combustion engine | Hiroshi Hashimoto, Eiichi Fujisawa, Yoshinari Obana | 1990-12-18 |
| 4966106 | Camshaft driving arrangement for double overhead camshaft engine | Yoshio Iwasa | 1990-10-30 |
| 4951616 | V-type engine | Yoshio Iwasa | 1990-08-28 |