Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7392780 | Machine provided with pulsating oil pressure reducing device | Noriaki Kawai, Chihiro NISHIKAWA, Nobuharu Takahashi | 2008-07-01 |
| 7377252 | Internal combustion engine provided with oil filter | Noriaki Kawai, Chihiro NISHIKAWA, Akihiro Konishi | 2008-05-27 |