Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669371 | Oil-impregnated sintered bearing | Takeshi Tanaka, Tooru Ito | 2003-12-30 |
| 6599018 | Oil-impregnant sintered bearing and manufacturing method thereof, and motor | Tsuneo Maruyama, Junichi Iguchi, Tooru Itoh, Takeshi Tanaka | 2003-07-29 |