Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848299 | System and method for controlling an ignition timing for an internal combustion engine | Hiroshi Satoh | 1989-07-18 |
| 4825832 | System and method for controlling an ignition timing for an internal combustion engine | Hiroshi Satoh | 1989-05-02 |
| 4802455 | Knocking control system and method for an internal combustion engine | — | 1989-02-07 |