Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6652675 | Copper alloy sliding material | Kenji Sakai, Naohisa Kawakami, Koichi Yamamoto, Takayuki Shibayama | 2003-11-25 |
| 6602615 | Composite sliding material | Kenji Sakai, Eisaku Inoue, Koichi Yamamoto, Takayuki Shibayama | 2003-08-05 |