Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6167011 | Processing of disc-drive pickup signals | Kai Sun | 2000-12-26 |
| 6137753 | Runout calibration for disc drive system | — | 2000-10-24 |
| 6041028 | Dynamic adjustment of disk-drive pickup signals | Thomas Quan | 2000-03-21 |
| 5870363 | Optical disk motor servo and method for closed loop speed control | Kai Sun | 1999-02-09 |
| 4908816 | Voice coil motor with linearized force constant | Patrick J. Champagne | 1990-03-13 |
| 4879612 | Head positioning servo-mechanism with error reduction capabilities | Robin J. Freeze | 1989-11-07 |