Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12020733 | Sector metrics to estimate health of written data | Niranjay Ravindran, Weldon M. Hanson, Hiroyasu Masuda, Zarko Popov | 2024-06-25 |
| 11417362 | Data storage device eliminating preamble from servo sectors | James B. French, Jr. | 2022-08-16 |
| 11085242 | Pneumatic drilling with packer slideable along stem drill rod | Robert F. Vincent, Robert J. Meneghini | 2021-08-10 |
| 11055171 | Data storage device employing multi-level parity sectors for data recovery procedure | Niranjay Ravindran, Weldon M. Hanson, Richard Leo Galbraith, Iouri Oboukhov | 2021-07-06 |
| 10606699 | Data storage device employing multi-level parity sectors for data recovery procedure | Iouri Oboukhov, Weldon M. Hanson, Niranjay Ravindran | 2020-03-31 |
| 9384779 | Information storage device with multiple-use fields in servo pattern | Jonathan Darrel Coker | 2016-07-05 |
| 9311942 | Information storage device with multiple-use fields in servo pattern | Jonathan Darrel Coker | 2016-04-12 |
| 8767341 | Servo systems with augmented servo bursts | Jonathan Darrell Coker, Timothy J. Everett, James B. French, Jr., Gary Herbst | 2014-07-01 |
| 8760794 | Servo systems with augmented servo bursts | Jonathan Darrel Coker, Timothy J. Everett, James B. French, Jr., Gary Herbst | 2014-06-24 |
| 8477442 | Patterned media for self-servowriting integrated servo fields | Thomas R. Albrecht, Jonathan Darrel Coker | 2013-07-02 |
| 8422161 | Information storage device with multiple-use fields in servo pattern | Yuval Cassuto, Jonathan Darrel Coker | 2013-04-16 |
| 7986488 | Magnetic recording disk and disk drive with alternating single-polarity position error signal (PES) blocks for read/write head positioning | Jonathan Darrel Coker, Joel Dale Haugen, Neil Krishnaswamy | 2011-07-26 |
| 7675703 | Magnetic recording disk drive with patterned media and system for clocking write data | Thomas R. Albrecht, Richard Leo Galbraith, Michael Moser, Bruce A. Wilson, Xiao Z. Wu | 2010-03-09 |
| 7259928 | System and method for writing servo track in sealed HDD | Gary Herbst | 2007-08-21 |
| 7206146 | Biphase magnetic pattern detector using multiple matched filters for hard disk drive | Richard Leo Galbraith, Travis Roger Oenning | 2007-04-17 |
| 7193800 | Data recording medium with servo pattern having pseudo-noise sequences | Jonathan Darrel Coker, Richard Leo Galbraith | 2007-03-20 |
| 7072132 | System and method for writing servo track in sealed HDD | Gary Herbst | 2006-07-04 |
| 6995938 | Data recording system with servo pattern having pseudo-noise sequences | Jonathan Darrel Coker, Richard Leo Galbraith | 2006-02-07 |
| 6839195 | Method and apparatus for enhanced phase alignment for direct access storage device (DASD) | Timothy J. Chainer, Jonathan Darrel Coker, Mark D. Schultz | 2005-01-04 |
| 6175457 | Dual polarity thermal asperity detector for direct access storage device (DASD) | — | 2001-01-16 |
| 6137643 | Thermal asperity detection with long magnet rejection for direct access storage device (DASD) | — | 2000-10-24 |
| 5790341 | Method and apparatus for reducing servo interference in a magneto-resistive head using skew between head and servo pattern | Earl A. Cunningham, Jodie A. Christner, Thomas C. Christensen, Mark Andrew Bergquist, Mark David Hagen | 1998-08-04 |
| 5784010 | Method and apparatus for implementing a set rate code for data channels with alternate 9-bit code words and 8-bit code words | Jonathan Darrel Coker, Richard Leo Galbraith, Todd Carter Truax | 1998-07-21 |