Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5413075 | Gaseous fuel engine and air-fuel ratio control system for the engine | Kiyotaka Mamiya, Tohru Shiraishi, Takafumi Teramoto | 1995-05-09 |
| 5249130 | Air-fuel ratio control apparatus for an alcohol engine | Kiyotaka Mamiya, Ichiro Yamagata, Takayoshi Hayashi | 1993-09-28 |