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Hai Sun
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Milpitas, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
PMR writer with non-conformal side gaps
Patent number
9,940,951
Issue date
Apr 10, 2018
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for providing a magnetic recording write apparatus by predef...
Patent number
9,711,168
Issue date
Jul 18, 2017
Western Digital (Fremont), LLC
Xiaoyu Yang
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording write apparatus having a pole including an assis...
Patent number
9,558,763
Issue date
Jan 31, 2017
Western Digital (Fremont), LLC
Peng Luo
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for making ultra-narrow read sensor and read transducer devi...
Patent number
9,406,331
Issue date
Aug 2, 2016
Western Digital (Fremont), LLC
Miao Wang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for fabricating a magnetic writer having a gradient side gap
Patent number
9,349,394
Issue date
May 24, 2016
Western Digital (Fremont), LLC
Hai Sun
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to fabricate a magnetic head including ion milling of read g...
Patent number
9,312,064
Issue date
Apr 12, 2016
Western Digital (Fremont), LLC
Miao Wang
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Process for making PMR writer with non-conformal side gaps
Patent number
9,275,657
Issue date
Mar 1, 2016
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for exposing photoresist in a microelectric device
Patent number
9,274,438
Issue date
Mar 1, 2016
Western Digital (Fremont), LLC
Hongping Yuan
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Double patterning hard mask for damascene perpendicular magnetic re...
Patent number
9,202,480
Issue date
Dec 1, 2015
Western Digital (Fremont), LLC
Xiaohai Xiang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of making an ultra-sharp tip mode converter for a HAMR head
Patent number
9,202,493
Issue date
Dec 1, 2015
Western Digital (Fremont), LLC
Dujiang Wan
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic write pole having engineered radius of curvature and chise...
Patent number
9,190,079
Issue date
Nov 17, 2015
Western Digital (Fremont), LLC
Feng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to make interferometric taper waveguide for HAMR light delivery
Patent number
9,183,854
Issue date
Nov 10, 2015
Western Digital (Fremont), LLC
Dujiang Wan
G11 - INFORMATION STORAGE
Information
Patent Grant
DUV photoresist process
Patent number
9,104,107
Issue date
Aug 11, 2015
Western Digital (Fremont), LLC
Xianzhong Zeng
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Reader fabrication method employing developable bottom anti-reflect...
Patent number
9,034,564
Issue date
May 19, 2015
Western Digital (Fremont), LLC
Wei Gao
G11 - INFORMATION STORAGE
Information
Patent Grant
Systems and methods for using double mask techniques to achieve ver...
Patent number
9,007,719
Issue date
Apr 14, 2015
Western Digital (Fremont), LLC
Hongping Yuan
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for fabricating side shields in a magnetic writer
Patent number
9,001,467
Issue date
Apr 7, 2015
Western Digital (Fremont), LLC
Xianzhong Zeng
G11 - INFORMATION STORAGE
Information
Patent Grant
Double exposure technique for high resolution disk imaging
Patent number
8,993,217
Issue date
Mar 31, 2015
Western Digital (Fremont), LLC
Ling Wang
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for providing a perpendicular magnetic recording head
Patent number
8,793,866
Issue date
Aug 5, 2014
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for providing side shields for a magnetic recording transducer
Patent number
8,703,397
Issue date
Apr 22, 2014
Western Digital (Fremont), LLC
Xianzhong Zeng
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to eliminate reactive ion etching (RIE) loading effects for...
Patent number
8,649,123
Issue date
Feb 11, 2014
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for providing a magnetic recording pole having a...
Patent number
8,563,146
Issue date
Oct 22, 2013
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for fabricating a structure for a microelectric device
Patent number
8,413,317
Issue date
Apr 9, 2013
Western Digital (Fremont), LLC
Dujiang Wan
G11 - INFORMATION STORAGE
Information
Patent Grant
Resist pattern protection technique for double patterning application
Patent number
8,394,280
Issue date
Mar 12, 2013
Western Digital (Fremont), LLC
Dujiang Wan
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for providing a perpendicular magnetic recording...
Patent number
8,334,093
Issue date
Dec 18, 2012
Western Digital (Fremont), LLC
Jinqiu Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for providing a wrap-around shield for a magnetic recording...
Patent number
8,322,023
Issue date
Dec 4, 2012
Western Digital (Fremont), LLC
Xianzhong Zeng
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head
Patent number
8,284,517
Issue date
Oct 9, 2012
Western Digital (Fremont), LLC
Hai Sun
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for exposing a photoresist in a magnetic device
Patent number
8,169,473
Issue date
May 1, 2012
Western Digital (Fremont), LLC
Winnie Yu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method and apparatus for lifting off photoresist beneath an overlayer
Patent number
8,163,185
Issue date
Apr 24, 2012
Western Digital (Fremont), LLC
Hai Sun
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for providing a perpendicular magnetic recording...
Patent number
8,136,224
Issue date
Mar 20, 2012
Western Digital (Fremont), LLC
Hai Sun
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and system for providing a magnetic writer using a BARC
Patent number
8,072,705
Issue date
Dec 6, 2011
Western Digital (Fremont), LLC
Yizhong Wang
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR MAKING ULTRA-NARROW READ SENSOR AND READ TRANSDUCER DEVI...
Publication number
20160329064
Publication date
Nov 10, 2016
WESTERN DIGITAL (FREMONT), LLC
MIAO WANG
G11 - INFORMATION STORAGE
Information
Patent Application
PROCESS FOR MAKING PMR WRITER WITH NON-CONFORMAL SIDE GAPS
Publication number
20160171992
Publication date
Jun 16, 2016
WESTERN DIGITAL (FREMONT), LLC
JINQIU ZHANG
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR EXPOSING PHOTORESIST IN A MICROELECTRIC DEVICE
Publication number
20160154310
Publication date
Jun 2, 2016
WESTERN DIGITAL (FREMONT), LLC
HONGPING YUAN
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY
Publication number
20160099013
Publication date
Apr 7, 2016
WESTERN DIGITAL (FREMONT), LLC
DUJIANG WAN
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD TO MAKE INTERFEROMETRIC TAPER WAVEGUIDE FOR HAMR LIGHT DELIVERY
Publication number
20150243304
Publication date
Aug 27, 2015
WESTERN DIGITAL (FREMONT), LLC
DUJIANG WAN
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND SYSTEM FOR PROVIDING A SIDE SHIELD FOR A PERPENDICULAR M...
Publication number
20120237878
Publication date
Sep 20, 2012
WESTERN DIGITAL (FREMONT), LLC
XIANZHONG ZENG
G11 - INFORMATION STORAGE
Information
Patent Application
DOUBLE PATTERNING HARD MASK FOR DAMASCENE PERPENDICULAR MAGNETIC RE...
Publication number
20110086240
Publication date
Apr 14, 2011
WESTERN DIGITAL (FREMONT), LLC
Xiaohai XIANG
G11 - INFORMATION STORAGE
Information
Patent Application
Damascene coil processes and structures
Publication number
20100290157
Publication date
Nov 18, 2010
WESTERN DIGITAL (FREMONT), LLC
Jinqiu Zhang
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
METHOD AND SYSTEM FOR PROVIDING A PERPENDICULAR MAGNETIC RECORDING...
Publication number
20100112486
Publication date
May 6, 2010
WESTERN DIGITAL (FREMONT), LLC
JINQIU ZHANG
G11 - INFORMATION STORAGE