Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585788 | Exhaust particulate removing filter of diesel engine | — | 2003-07-01 |
| 5664540 | Pre-combustion chamber-type engine | Hiroshi Matsuoka, Keiji Kishishita, Takahiro Tsubonuma | 1997-09-09 |
| 5520148 | Heat insulating structure for swirl chambers | Hideo Kawamura | 1996-05-28 |