Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12148454 | Magnetic recording head with stable magnetization of shields | — | 2024-11-19 |
| 11894028 | Magnetic recording head with trailing shield having multiple throat-heights | Mark H. Burkhardt, El-Amine Salhi | 2024-02-06 |
| 11682417 | Asymmetric write head shields compatible with dual-free-layer (DFL) readers | — | 2023-06-20 |
| 11676627 | Magnetic recording head with stable magnetization of shields | — | 2023-06-13 |
| 11657837 | Magnetic recording head with trailing shield having multiple throat-heights | Mark H. Burkhardt, El-Amine Salhi | 2023-05-23 |
| 9412398 | Shield with uniform magnetic properties for a perpendicular magnetic recording head | Donald G. Allen, Wen-Chien David Hsiao, Ning Shi | 2016-08-09 |
| 9183853 | Magnetic write head having a stacked coil architecture for high data rate performance | Wen-Chien David Hsiao, Edward Hin Pong Lee, Guomin Mao, Yi Zheng | 2015-11-10 |
| 9099110 | Real time writer shields magnetization optimization for FTI improvement | Venkatesh Chembrolu, Wen-Chien David Hsiao, Supradeep Narayana | 2015-08-04 |
| 9099116 | Stiff discrete insert array for thermal PTR management with desired induced stress state that reduces tendency for write pole erasure | Edward Hin Pong Lee, Xinjiang Shen, Ning Shi | 2015-08-04 |
| 8780499 | Magnetic write head having a residual shield seed layer for reducing overwriting | Wen-Chien David Hsiao, Terence T. L. Lam, Aron Pentek, Yi Zheng, Yuming Zhou | 2014-07-15 |
| 8331058 | Method and apparatus for providing a write head with an improved pole tip to improve overwrite and/or adjacent track interference | Savas Gider, Wen-Chien David Hsiao, Terence Lam, Edward Hin Pong Lee, Yansheng Luo +3 more | 2012-12-11 |
| 8120874 | Perpendicular write head having a modified wrap-around shield to improve overwrite, adjacent track interference and magnetic core width dependence on skew angle | Wen-Chien David Hsiao | 2012-02-21 |
| 8068311 | Perpendicular magnetic write head having a novel trailing return pole for reduced wide-area-track-erasure | Wen-Chien David Hsiao, Yansheng Luo | 2011-11-29 |
| 7990652 | Perpendicular magnetic write head with stepped write pole for reduced MCW dependency on skew angle | Wen-Chien David Hsiao, Yimin Hsu, Yansheng Luo, Vladimir Nikitin, Changqing Shi | 2011-08-02 |
| 7446966 | Method for precompensation/write-current latching to improve error rate | Indukumar Kalahasthi, Guo Mian, Kris Schouterden, Joseph Emanuel Silva, Christopher David Wiederholt +1 more | 2008-11-04 |
| 7237320 | Methods of orienting an easy axis of a high-aspect ratio write head for improved writing efficiency | — | 2007-07-03 |
| 7072142 | Apparatus for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation | — | 2006-07-04 |
| 7070716 | Method for providing transverse magnetic bias proximate to a pole tip to speed up the switching time of the pole-tip during the writing operation | — | 2006-07-04 |
| 7023660 | Localized pole tip heating device for magnetic head for hard disk drive | Wen-Chien David Hsiao | 2006-04-04 |
| 6826014 | Write head having first pole piece with frequency dependent variable effective throat height | Wen-Chien David Hsiao | 2004-11-30 |
| 6785098 | First pole piece with frequency dependent variable effective throat height | Wenchein Hsiao, Edward Hin Pong Lee | 2004-08-31 |
| 6721129 | Low frequency attenuator in a magnetic write head | — | 2004-04-13 |