Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9998042 | Torque disturbance cancellation for a motor | Matthew McLeod Chadsey | 2018-06-12 |
| 9070411 | Writable servo overlap zones | Timothy F. Ellis, Joshua Ward Christensen, Ravi Hebbar, Justin Won | 2015-06-30 |
| 8891200 | Impedance mitigation of a microactuator conductive joint | David L. Schell, Robert A. Alt, KarWei Koay | 2014-11-18 |
| 7561370 | Seam to seam embedded runout correction propagation | Thomas O. Melrose, Bruce A. Liikanen | 2009-07-14 |
| 7253982 | Dynamic shock detection in disk drive using hair trigger timer | Don Brunnett, Bruce A. Liikanen | 2007-08-07 |
| 7193807 | Method and apparatus for reducing effective track width through highly skewed head angles | Bruce A. Liikanen, Terry Keefer | 2007-03-20 |
| 7154690 | Dynamic shock detection in disk drive using accumulated average position error | Don Brunnett, Bruce A. Liikanen | 2006-12-26 |
| 7106542 | Method and apparatus for determining embedded runout correction values when self-servo writing or partial self-servo writing a disk drive | Yu Sun, Lin Guo, Don Brunnett, Georgie Tan | 2006-09-12 |
| 6947249 | Method and apparatus for automatically determining an embedded runout correction threshold | Jim Hargarten, Thomas O. Melrose | 2005-09-20 |
| 6882489 | Dynamic off-track detector | Don Brunnett, Bruce A. Liikanen | 2005-04-19 |
| 6606216 | Transducer head with separate data and servo read elements | Bruce A. Liikanen, Moris Dovek | 2003-08-12 |
| 6332207 | Method of correcting a read error in a disk drive | Bobby Ray Southerland, Jin-Hong Hsueh, Lace J. Herman | 2001-12-18 |
| 6219197 | Method and apparatus for servo positioning in a direct access storage device with a transducer read element width greater than 1/3 and less than 1/2 width of a data cylinder | Dana H. Brown, Mark David Hagen | 2001-04-17 |
| 6147827 | Method of correcting read errors in a data storage system using targeted ECC | Bobby Ray Southerland, Jin-Hong Hsueh, Lace J. Herman | 2000-11-14 |
| 6104558 | System and method of encoding an index mark into a servo address | Richard Greenberg | 2000-08-15 |
| 6084734 | Data recovery using targeted ECC correction | Bobby Ray Southerland, Jin-Hong Hsueh, Lace J. Herman | 2000-07-04 |
| 6034837 | Disk drive zoned sequential data format and head switch sequence | — | 2000-03-07 |
| 5872673 | Disk drive zoned sequential data format and head switch sequence | — | 1999-02-16 |
| 5760993 | Information storage device with an odd number of track sequences in a zone | — | 1998-06-02 |
| 5757568 | System and method for encoding a servo address | Richard Greenberg | 1998-05-26 |
| 5615064 | Pulsed current velocity controlled head load method and apparatus which uses the back EMF to control the generation of head actuator driving pulses | Timothy J. Blank, Kevin J. Erickson, Richard Greenberg | 1997-03-25 |
| 5596460 | System and method for encoding a servo address | Richard Greenberg | 1997-01-21 |