Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5271366 | Fuel injection system | Masakazu Yokoyama, Hiroshi Ishii, Kiyoharu Yamada | 1993-12-21 |
| 5271370 | Emulsion fuel engine | Kiyoharu Yamada, Yutaka Zaha | 1993-12-21 |
| 5245953 | Emulsion fuel engine | Kiyoharu Yamada, Yutaka Zaha | 1993-09-21 |
| 4909210 | Variable swirl intake apparatus for engine | Osamu Miyata, Tomoaki Tajima, Shigeo Yazawa, Toshio Tsuda, Shuichi Komuro +2 more | 1990-03-20 |
| 4834035 | Variable swirl intake apparatus for engine | Osamu Miyata, Tomoaki Tajima, Shigeo Yazawa, Toshio Tsuda, Shuichi Komuro +2 more | 1989-05-30 |