Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11688427 | Angled free layer for multi-level read signals | Zhen Jin | 2023-06-27 |
| 8736996 | Implementing channel signal processing assist with ECS contact detection | Weldon M. Hanson | 2014-05-27 |
| 8537496 | Perpendicular magnetic write head having a trailing wrap-around magnetic shield magnetically biased in a cross track direction | Zhihao Li, Zhen Jin, Yansheng Luo | 2013-09-17 |
| 8405927 | Apparatus and method for detecting low flying sliders | Xiao Z. Wu | 2013-03-26 |
| 8120866 | Method for characterizing a magnetic-recording system for the presence of adjacent-track interference and far-track interference | Zhen Jin, Michael Paul Salo, Roger William Wood | 2012-02-21 |
| 8116021 | Synchronized rewriting of data | Michael Alex, Zhen Jin, Michael Paul Salo | 2012-02-14 |
| 7821736 | Shaped trailing shield of a perpendicular recording write element | Wen-Chien David Hsiao, Yimin Hsu, Vladimir Nikitin | 2010-10-26 |
| 7542227 | Flying height measurement and control with user data signal | Yawshing Tang | 2009-06-02 |
| 7538963 | System, method, and apparatus for monitoring stray magnetic fields and protecting disk drives therefrom | — | 2009-05-26 |
| 7508628 | Winged pole and shield structure for reducing stray field in a perpendicular write head | Hardayal Singh Gill, Wen-Chien David Hsiao, Yangsheng Luo, Xiaoyu Sui | 2009-03-24 |
| 7420759 | Apparatus and method for internal calibration of normalized playback transfer curve in a hard disk drive | — | 2008-09-02 |
| 7365531 | Magnetic reader recording characterization at slider or bar level | Wenchien David Hsiao, Yansheng Luo, Xiaoyu Sui | 2008-04-29 |
| 7227711 | System, method, and apparatus for in-situ stray magnetic field measurement | Wen-Chien David Hsiao, Yansheng Luo, Xiaoyu Sui | 2007-06-05 |
| 7215495 | System and method for determining head-disk contact in a magnetic recording disk drive | Weidong Huang, Terence Lam, Zhong-heng Lin, Alex Shteyn | 2007-05-08 |
| 7180692 | System and method for calibrating and controlling a fly-height actuator in a magnetic recording disk drive | Weidong Huang, Terence Lam, Zhong-heng Lin, Alex Shteyn | 2007-02-20 |
| 7131346 | Spin stand testing system with fine positioner for head stack assembly | Jagdeep S. Buttar, David Terrill, Kenneth R. Davies, Herman Ferrier | 2006-11-07 |
| 7133241 | Method and apparatus for optimizing record quality with varying track and linear density by allowing overlapping data tracks | Wen-Chien David Hsiao, Yansheng Luo, Xiaoyu Sui, Samuel W. Yuan | 2006-11-07 |
| 7119537 | Full track profile derivative method for read and write width measurements of magnetic recording head | Terence Lam, Zhong-heng Lin, Xiaoyu Sui | 2006-10-10 |
| 5691857 | Method using matched filters for determining head positioner micro-jog in hard disk drive employing magneto-resistive heads | James Fitzpatrick | 1997-11-25 |
| 5633770 | Digital output magnetoresistive (DOMR) head and methods associated therewith | — | 1997-05-27 |
| 5583705 | Write precompensation optimization in a PRML channel using a selected PRML signal level | Pablo A. Ziperovich | 1996-12-10 |
| 5576906 | Synchronous detection of concurrent servo bursts for fine head position in disk drive | Kevin D. Fisher, Jim Fitzpatrick | 1996-11-19 |
| 5546253 | Digitial output magnetoresistive (DOMR) head and methods associated therewith | — | 1996-08-13 |
| 5493454 | Write precompensation optimization in a PRML channel using a selected PRML signal level | Pablo A. Ziperovich | 1996-02-20 |