Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663344 | Copper-based sintered alloy bearing and motor fuel pump | Tsuneo Murayama, Yoshio Ebihara | 2003-12-16 |
| 6524365 | Bearing made of graphite-dispersed copper-based sintered alloy and motorized fuel pump using this bearing | Tsuneo Maruyama, Yoshio Ebihara | 2003-02-25 |