Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11680514 | Liquid injection nozzle | Hiroshi Matsuoka, Hiroshi Noguchi | 2023-06-20 |
| 5664540 | Pre-combustion chamber-type engine | Hiroshi Matsuoka, Takahiro Tsubonuma, Takatoshi Sugano | 1997-09-09 |
| 5079913 | Turbocharger compound engine system | — | 1992-01-14 |
| 4800726 | Turbo compound engine | Masaki Okada | 1989-01-31 |