Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342743 | Spindle motor structure using ceramic ball bearing for hard disk drive | Shinichi Matsuzaki, Koichi Takeuchi, Kiyoshi Satoh | 2002-01-29 |
| 6218794 | Spindle motor startup method and apparatus | Yasuhito Shimizu, Naoyuki Kagami, Akira Tokizono | 2001-04-17 |