Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6073605 | Gas engine with pre-combustion chamber | Hiroshi Matsuoka, Hideo Kawamura | 2000-06-13 |
| 5950593 | Gas engine with pre-combustion chamber | Hiroshi Matsuoka, Hideo Kawamura | 1999-09-14 |