Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7399733 | Metallic sliding member, piston for internal combustion engine, method of surface-treating these, and apparatus therefor | Hidemi Ogihara | 2008-07-15 |
| 6863922 | Metallic sliding member, piston for internal combustion engine, method of surface treating these, and apparatus therefor | Hidemi Ogihara | 2005-03-08 |