Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5834870 | Oil impregnated porous bearing units and motors provided with same | Hidekazu Tokushima, Motohiro Miyasaka, Hideo Shikata, Katsutoshi Nii | 1998-11-10 |
| 5821655 | Magnetic fluid bearing unit structure and motor having the same | Hidekazu Tokushima, Motohiro Miyasaka, Hideo Shikata, Katsutoshi Nii | 1998-10-13 |
| 5645355 | Bearing unit | Hidekazu Tokushima, Motohiro Miyasaka, Hideo Shikata, Katsutoshi Nii | 1997-07-08 |