Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4686946 | Valve moving system of an overhead valve engine | Tatsutoshi Umeda, Yoshio Tani, Keiichi Nakano, Yoshio Izui | 1987-08-18 |
| 4633824 | Cooling means for the squish part of an air cooling overhead valve engine | Tatsutoshi Umeda, Yoshio Tani, Keiichi Nakano, Yoshio Izui | 1987-01-06 |