Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839831 | Oil degradation warning system | Minoru Imajo | 1989-06-13 |
| 4706193 | Oil degradation warning system | Minoru Imajo | 1987-11-10 |
| 4694793 | Engine lubricant type and condition monitoring system | Minoru Imajo | 1987-09-22 |