Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4958613 | Internal combustion engine with crankcase ventilation system | Toyoki Hiraoka, Yuichi Murakami | 1990-09-25 |
| 4957077 | Camshaft driving arrangement for double overhead camshaft engine | Masaru Mitsuhashi, Yoshio Iwasa | 1990-09-18 |