Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7251891 | Production method for sintered bearing member, fluid dynamic pressure bearing device, and spindle motor | Katsutoshi Nii, Tadashi Akahori | 2007-08-07 |
| 7218023 | Spindle motor | Jun Hirose, Katsutoshi Nii | 2007-05-15 |