Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5150691 | Engine fuel injector | — | 1992-09-29 |
| 4966107 | Valve clearance adjustment | — | 1990-10-30 |
| 4936266 | Valve drive train for internal combustion engine | — | 1990-06-26 |
| 4915067 | Valve operating system of internal combustion engine | — | 1990-04-10 |
| 4839831 | Oil degradation warning system | Tsunehiro Kawakita | 1989-06-13 |
| 4706193 | Oil degradation warning system | Tsunehiro Kawakita | 1987-11-10 |
| 4694793 | Engine lubricant type and condition monitoring system | Tsunehiro Kawakita | 1987-09-22 |