Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869095 | Vibration detecting device | — | 1989-09-26 |
| 4862863 | Electronic ignition apparatus including ignition-noise making signal generator | — | 1989-09-05 |
| 4856479 | Ignition timing control apparatus for an internal combustion engine | Takanori Fujimoto, Toshiro Hara | 1989-08-15 |