Inventor
LAM QUAN-CHIU HARRY
US20 patents
⚠️ This page may combine multiple inventors who share the name “LAM QUAN-CHIU HARRY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI GLOBAL STORAGE TECH
5 patentsUS7237320B2Jul 3, 2007
Methods of orienting an easy axis of a high-aspect ratio write head for improved writing efficiency
HITACHI GLOBAL STORAGE TECH78 citations97
US7070716B2Jul 4, 2006
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
HITACHI GLOBAL STORAGE TECH33 citations92
US7072142B2Jul 4, 2006
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
HITACHI GLOBAL STORAGE TECH39 citations92
US7023660B2Apr 4, 2006
Localized pole tip heating device for magnetic head for hard disk drive
HITACHI GLOBAL STORAGE TECH19 citations92
US7446966B2Nov 4, 2008
Method for precompensation/write-current latching to improve error rate
HITACHI GLOBAL STORAGE TECH2 citations56
WESTERN DIGITAL TECH INC
5 patentsUS11682417B1Jun 20, 2023
Asymmetric write head shields compatible with dual-free-layer (DFL) readers
WESTERN DIGITAL TECH INC2 citations72
US12148454B2Nov 19, 2024
Magnetic recording head with stable magnetization of shields
WESTERN DIGITAL TECH INC0 citations62
US11676627B2Jun 13, 2023
Magnetic recording head with stable magnetization of shields
WESTERN DIGITAL TECH INC1 citations62
US11894028B2Feb 6, 2024
Magnetic recording head with trailing shield having multiple throat-heights
WESTERN DIGITAL TECH INC0 citations55
US11657837B2May 23, 2023
Magnetic recording head with trailing shield having multiple throat-heights
WESTERN DIGITAL TECH INC0 citations55
IBM
3 patentsUS6826014B2Nov 30, 2004
Write head having first pole piece with frequency dependent variable effective throat height
IBM14 citations84
US6721129B2Apr 13, 2004
Low frequency attenuator in a magnetic write head
IBM9 citations73
US6785098B2Aug 31, 2004
First pole piece with frequency dependent variable effective throat height
IBM5 citations61
HGST Netherlands BV
3 patentsUS9099110B1Aug 4, 2015
Real time writer shields magnetization optimization for FTI improvement
HGST Netherlands BV2 citations62
US9183853B2Nov 10, 2015
Magnetic write head having a stacked coil architecture for high data rate performance
HGST Netherlands BV1 citations52
US9099116B2Aug 4, 2015
Stiff discrete insert array for thermal PTR management with desired induced stress state that reduces tendency for write pole erasure
HGST Netherlands BV0 citations51
HSIAO WEN-CHIEN DAVID
2 patentsUS8120874B2Feb 21, 2012
Perpendicular write head having a modified wrap-around shield to improve overwrite, adjacent track interference and magnetic core width dependence on skew angle
HSIAO WEN-CHIEN DAVID47 citations93
US8068311B2Nov 29, 2011
Perpendicular magnetic write head having a novel trailing return pole for reduced wide-area-track-erasure
HSIAO WEN-CHIEN DAVID1 citations51