Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6886520 | Cylinder for internal combustion engine and method of treating inner surface of the cylinder | Shinji Tsuchiya, Motoi Hashiba, Hiroshi Fukuda | 2005-05-03 |
| 6694943 | Cylinder for internal combustion engine and method of treating inner wall surface of the cylinder | Hiroshi Fukuda, Motoi Hashiba, Shinji Tsuchiya | 2004-02-24 |