Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687680 | Valve system for overhead valve internal combustion engine | Yukio Ishiuchi | 1997-11-18 |
| 5636608 | Power unit for a vehicle | Sumiko Fukuzawa, Toshio Shimada, Yukio Ishiuchi | 1997-06-10 |