Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853862 | Method and apparatus for controlling air-fuel ratio in an internal combustion engine by corrective feedback control | Takashi Shiraishi | 1989-08-01 |
| 4836169 | Engine control apparatus | Hideaki Ishikawa | 1989-06-06 |