Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8059360 | Disk drive compensating for radial phase change of repeatable position error due to servo writing from spiral tracks | Donald Brunnett | 2011-11-15 |
| 7548392 | Disk drive controlling a voice coil motor during an emergency unload | Ashok K. Desai, Robert P. Ryan | 2009-06-16 |
| 7304819 | Method for writing repeatable runout correction values to a magnetic disk of a disk drive | Robert J. McNab | 2007-12-04 |
| 7298574 | Servo writing a disk drive using correction values that attenuate phase error propagation | Robert J. McNab | 2007-11-20 |
| 7196864 | Disk drive having a servo control system optimized for faster determination of repeatable runout correction values and related method | Li Yi | 2007-03-27 |
| 7095579 | Disk drive employing momentum based unload during power failure | Robert P. Ryan, Ashok K. Desai, Jenghung Chen, John R. Agness, Terry C. Dawson | 2006-08-22 |
| 7046472 | Method and apparatus for self servowriting of tracks of a disk drive using an observer based on an equivalent one-dimensional state model | Robert L. Cloke, Vinay K. Agarwal | 2006-05-16 |
| 6999267 | Method for iteratively determining repeatable runout cancellation values in a magnetic disk drive | Zhi Wang | 2006-02-14 |
| 6999263 | Method and apparatus for self servowriting of tracks of a disk drive using a servo control loop having a two-dimensional weighted digital state compensator | Robert L. Cloke, Vinay K. Agarwal | 2006-02-14 |
| 6975480 | Method for determining repeatable runout cancellation values in a magnetic disk drive using filtering | Raffi Codilian, Vinay K. Agarwal | 2005-12-13 |
| 6963465 | Method for preventing radial error propagation during self-servowriting of tracks in a magnetic disk drive | Robert J. McNab | 2005-11-08 |
| 6937420 | Determining repeatable runout cancellation information using PES information generated during self servo-writing operations | Robert J. McNab | 2005-08-30 |
| 6924959 | Reducing estimation period for repeatable runout errors in a disk drive | Robert J. McNab, David D. Nguyen, John Yin Kwong Li | 2005-08-02 |
| 6924960 | Timing compensation in a self-servowriting system | Robert L. Cloke | 2005-08-02 |
| 6924961 | Method and apparatus for self servowriting of tracks of a disk drive using an observer based on an equivalent one-dimensional state model | Robert L. Cloke, Vinay K. Agarwal | 2005-08-02 |
| 6826006 | Method for recursively determining repeatable runout cancellation values in a magnetic disk drive | Russ A. Quisenberry | 2004-11-30 |
| 6819518 | Method and apparatus for self servowriting of tracks of a disk drive using a servo control loop having a two-dimensional digital state compensator | Robert L. Cloke, Vinay K. Agarwal | 2004-11-16 |
| 6693764 | Method and disk drive for improving head position accuracy during track following through real-time identification of external vibration | Edgar D. Sheh, Vinay K. Agarwal | 2004-02-17 |