Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886028 | Apparatus for controlling air-fuel ratio of internal combustion engine | Toshihisa Takahashi, Hiroyoshi Suzuki, Ryoji Nishiyama, Shinichi Nishida | 1989-12-12 |
| 4884540 | Engine speed control method | Yuji Kishimoto | 1989-12-05 |
| 4846131 | Fuel control apparatus for an n-cycle engine | Yasuhiro Kimoto | 1989-07-11 |