Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897998 | Turbo compound engine | Shigeru Nihongi, Sadatoshi Mogami | 1990-02-06 |
| 4894992 | Turbo compound engine | — | 1990-01-23 |
| 4882906 | Engine braking system | Masaki Okada | 1989-11-28 |
| 4872434 | Engine brake device | — | 1989-10-10 |
| 4748812 | Turbo compound engine | Masaki Okada | 1988-06-07 |