Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7997239 | Breather device of vertical type engine | Atsumu Naoi | 2011-08-16 |
| 7921963 | Internal combustion engine equipped with intake silencer | Kunihiko Ishizuka | 2011-04-12 |
| 7918196 | Vertical type engine | Atsumu Naoi | 2011-04-05 |