Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523566 | Knocking control system in engine | — | 1985-06-18 |
| 4513717 | Ignition timing control device of an internal combustion engine | — | 1985-04-30 |
| 4481924 | Engine knock detecting apparatus | — | 1984-11-13 |
| 4465952 | Spark plug for internal combustion engines | Yasuyuki Sato, Norihiko Nakamura | 1984-08-14 |
| 4463722 | Engine knock sensor | — | 1984-08-07 |