Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12153275 | Alignment device and lens alignment system | Hajime Fukushima, Jun Hirota, Marie Shimamura | 2024-11-26 |
| 11009067 | Mounting structure of bearing member and speed reducing apparatus | Jun Hirota, Hajime Fukushima | 2021-05-18 |
| 7211219 | Oil-impregnant sintered bearing and manufacturing method thereof, and motor | Tsuneo Maruyama, Kenji Nishio, Tooru Itoh, Takeshi Tanaka | 2007-05-01 |
| 6599018 | Oil-impregnant sintered bearing and manufacturing method thereof, and motor | Tsuneo Maruyama, Kenji Nishio, Tooru Itoh, Takeshi Tanaka | 2003-07-29 |