Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8904773 | Cooling water passage structure in cylinder head of internal combustion engine | Sei Maruyama | 2014-12-09 |
| 8544427 | Cooling water passage structure in cylinder head of internal combustion engine | Sei Maruyama | 2013-10-01 |