Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10196948 | Exhaust muffler for combustion engine | Kazuki Masui | 2019-02-05 |
| 8720403 | Having a crankshaft and two balancer shafts | Takahiro Yano, Michio Hirano | 2014-05-13 |
| 6662791 | Four-cycle overhead valve engine | Keiichi Nakamizo | 2003-12-16 |
| 6659094 | Breathing device for internal combustion engine | Keiichi Nakamizo | 2003-12-09 |