Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11200912 | Data storage device with servo field dependent write boost | Guoxiao Guo, Charles A. Park, David Scott C. Amiss, Duc H. Banh, Weldon M. Hanson | 2021-12-14 |
| 11087784 | Data storage devices with integrated slider voltage potential control | John Contreras, Yunfei Ding, Kuok San Ho, Ian Robson McFadyen | 2021-08-10 |
| 10891973 | High-bandwidth STO bias architecture with integrated slider voltage potential control | John Contreras, Yunfei Ding, Kuok San Ho, Ian Robson McFadyen | 2021-01-12 |
| 10825474 | Data storage device reverse biasing head element to counter electro-migration | Ian Robson McFadyen, Jih-Shiuan Luo, Yunfei Ding | 2020-11-03 |
| 10629229 | High-bandwidth STO bias architecture with integrated slider voltage potential control | John Contreras, Yunfei Ding, Kuok San Ho, Ian Robson McFadyen | 2020-04-21 |
| 10566018 | Data storage device reverse biasing head element to counter electro-migration | Ian Robson McFadyen, Jih-Shiuan Luo, Yunfei Ding | 2020-02-18 |
| 10566014 | Data storage device detecting resistance delta of a spin torque oscillator | — | 2020-02-18 |
| 10459479 | Data storage device calibrating preamp clock using system clock | — | 2019-10-29 |
| 10424323 | High-bandwidth STO bias architecture with integrated slider voltage potential control | John Contreras, Yunfei Ding, Kuok San Ho, Ian Robson McFadyen | 2019-09-24 |
| 10056098 | Data storage device employing multi-mode sensing circuitry for multiple head sensor elements | Sukumar Rajauria, Erhard Schreck, John Contreras, Rehan Ahmed Zakai, Robert L. Smith +1 more | 2018-08-21 |
| 9165596 | Magnetic recording disk drive with multiple preamplifiers and common transmission line with impedance compensation | John Contreras, Nobumasa Nishiyama, Tuyen V. Trinh, Craig K. Yanagisawa, Yasunori Kubo | 2015-10-20 |
| 9153248 | Hard disk drive preamplifier with write driver having bypass current sources for compensation of write head magnetic asymmetry | John Contreras, Zhihao Li | 2015-10-06 |
| 8988829 | Disk drive with preamplifier for multiple readers in a slider with a common return signal | John Contreras, Rehan Ahmed Zakai | 2015-03-24 |
| 8724244 | Efficient rotational parameter control for hard disk drive | Bijan Rafizadeh | 2014-05-13 |
| 8611036 | Disk drive with head thermal fly-height actuator and controller for compensation of write head expansion | Craig K. Yanagisawa | 2013-12-17 |
| 7123429 | Method and apparatus for providing write pre-compensation using a read timing path | Firmin Musungu, Raymond A. Richetta | 2006-10-17 |
| 7123430 | Method and apparatus for providing write pre-compensation using a read timing path | Firmin Musungu, Raymond A. Richetta | 2006-10-17 |
| 7027243 | Apparatus for providing head amplitude characterization | Chad Mitchell, Vicki Pipal, Raymond A. Richetta | 2006-04-11 |
| 7027245 | Apparatus for providing head amplitude characterization using gain loops | Chad Mitchell, Vicki Pipal, Raymond A. Richetta | 2006-04-11 |
| 7002764 | Method and apparatus for providing generalized write pre-compensation | Firmin Musungu, Brent A. Sadowy | 2006-02-21 |
| 6396358 | Dual-control ring voltage controlled oscillator | Scott K. Reynolds | 2002-05-28 |
| 5233482 | Thermal asperity compensation for PRML data detection | Richard Leo Galbraith, Gregory Kerwin | 1993-08-03 |
| 4853802 | Single stage feedforward equalizer | Dean Kukson, Constantin Michael Melas | 1989-08-01 |