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Lijie Guan
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Cupertino, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic recording devices using virtual side shields for improved...
Patent number
11,854,581
Issue date
Dec 26, 2023
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Anti-parallel coupled writer shields with stable magnetic domain co...
Patent number
11,848,034
Issue date
Dec 19, 2023
Western Digital Technologies, Inc.
Yingjian Chen
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording devices using virtual side shields for improved...
Patent number
11,749,299
Issue date
Sep 5, 2023
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording comprising an electr...
Patent number
11,657,835
Issue date
May 23, 2023
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording
Patent number
11,615,806
Issue date
Mar 28, 2023
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Write heads having conducting side gap for directing current
Patent number
11,557,314
Issue date
Jan 17, 2023
Western Digital Technologies, Inc.
Muhammad Asif Bashir
G11 - INFORMATION STORAGE
Information
Patent Grant
Energy assisted magnetic recording head having improved areal densi...
Patent number
11,557,315
Issue date
Jan 17, 2023
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording
Patent number
11,373,675
Issue date
Jun 28, 2022
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Area density capacity improvement with negative anisotropic magneti...
Patent number
11,264,052
Issue date
Mar 1, 2022
Western Digital Technologies, Inc.
Suping Song
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Energy assisted magnetic recording head having improved areal densi...
Patent number
11,227,627
Issue date
Jan 18, 2022
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Spin orbital torque based microwave assisted magnetic recording wit...
Patent number
11,170,804
Issue date
Nov 9, 2021
Western Digital Technologies, Inc.
Zhanjie Li
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head soft error rate improvement with compact ma...
Patent number
11,087,783
Issue date
Aug 10, 2021
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording and method of making...
Patent number
11,017,801
Issue date
May 25, 2021
Western Digital Technologies, Inc.
Venkatesh Chembrolu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording and method of making...
Patent number
11,017,802
Issue date
May 25, 2021
Western Digital Technologies, Inc.
Venkatesh Chembrolu
G11 - INFORMATION STORAGE
Information
Patent Grant
Spin orbital torque via spin hall effect based energy assisted magn...
Patent number
10,997,991
Issue date
May 4, 2021
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording write head with selected write gap current direc...
Patent number
10,957,348
Issue date
Mar 23, 2021
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with current assisted magnetic recording and method o...
Patent number
10,896,690
Issue date
Jan 19, 2021
SanDisk Technologies LLC
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with current assisted magnetic recording and method o...
Patent number
10,891,974
Issue date
Jan 12, 2021
SanDisk Technologies LLC
Venkatesh Chembrolu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with assisted magnetic recording and method of making...
Patent number
10,891,975
Issue date
Jan 12, 2021
SanDiskTechnologies LLC.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Spin orbital torque based microwave assisted magnetic recording wit...
Patent number
10,867,626
Issue date
Dec 15, 2020
Western Digital Technologies, Inc.
Zhanjie Li
G11 - INFORMATION STORAGE
Information
Patent Grant
Write heads configured to redirect current
Patent number
10,861,485
Issue date
Dec 8, 2020
Western Digital Technologies, Inc.
Muhammad Asif Bashir
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording devices using virtual side shields for improved...
Patent number
10,832,710
Issue date
Nov 10, 2020
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Spin orbital torque via spin hall effect based energy assisted magn...
Patent number
10,789,977
Issue date
Sep 29, 2020
Western Digital Technologies, Inc.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Grant
Write heads configured to redirect current
Patent number
10,777,219
Issue date
Sep 15, 2020
Western Digital Technologies, Inc.
Muhammad Asif Bashir
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording write head with selected write gap current direc...
Patent number
10,699,734
Issue date
Jun 30, 2020
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Current-assisted magnetic recording write head with improved write...
Patent number
10,679,650
Issue date
Jun 9, 2020
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storage device coding out ambiguity in three-dimensional magne...
Patent number
10,276,208
Issue date
Apr 30, 2019
Western Digital Technologies, Inc.
Zhigang Bai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of forming a non-uniform write gap perpendicular writer for...
Patent number
9,741,368
Issue date
Aug 22, 2017
Headway Technologies, Inc.
Lijie Guan
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of forming a writer with an AFM write gap
Patent number
9,336,799
Issue date
May 10, 2016
Headway Technologies, Inc.
Tai Min
G11 - INFORMATION STORAGE
Information
Patent Grant
PMR writer with patterned shields for adjacent track erasure improv...
Patent number
9,082,433
Issue date
Jul 14, 2015
Headway Technologies, Inc.
Yuhui Tang
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Anti-Parallel Coupled Writer Shields with Stable Magnetic Domain Co...
Publication number
20230178104
Publication date
Jun 8, 2023
Western Digital Technologies, Inc.
Yingjian CHEN
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Recording Devices Using Virtual Side Shields for Improved...
Publication number
20220343944
Publication date
Oct 27, 2022
Western Digital Technologies, Inc.
Suping SONG
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...
Publication number
20220238135
Publication date
Jul 28, 2022
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...
Publication number
20220208220
Publication date
Jun 30, 2022
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
Energy Assisted Magnetic Recording Head Having Improved Areal Densi...
Publication number
20220108715
Publication date
Apr 7, 2022
Western Digital Technologies, Inc.
Suping SONG
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...
Publication number
20210125631
Publication date
Apr 29, 2021
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
SPIN ORBITAL TORQUE BASED MICROWAVE ASSISTED MAGNETIC RECORDING WIT...
Publication number
20210082458
Publication date
Mar 18, 2021
Western Digital Technologies, Inc.
Zhanjie LI
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Recording Devices Using Virtual Side Shields for Improved...
Publication number
20210074322
Publication date
Mar 11, 2021
Western Digital Technologies, Inc.
Suping SONG
G11 - INFORMATION STORAGE
Information
Patent Application
SPIN ORBITAL TORQUE BASED ENERGY ASSISTED MAGNETIC RECORDING
Publication number
20200411039
Publication date
Dec 31, 2020
Western Digital Technologies, Inc.
Suping SONG
G11 - INFORMATION STORAGE
Information
Patent Application
WRITE HEADS CONFIGURED TO REDIRECT CURRENT
Publication number
20200381011
Publication date
Dec 3, 2020
Western Digital Technologies, Inc.
Muhammad ASIF BASHIR
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEAD WITH ASSISTED MAGNETIC RECORDING AND METHOD OF MAKING...
Publication number
20200381012
Publication date
Dec 3, 2020
SANDISK TECHNOLOGIES LLC
Venkatesh CHEMBROLU
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING WRITE HEAD WITH SELECTED WRITE GAP CURRENT DIREC...
Publication number
20200327900
Publication date
Oct 15, 2020
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
CURRENT-ASSISTED MAGNETIC RECORDING WRITE HEAD WITH IMPROVED WRITE...
Publication number
20200005815
Publication date
Jan 2, 2020
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING WRITE HEAD WITH SELECTED WRITE GAP CURRENT DIREC...
Publication number
20190267029
Publication date
Aug 29, 2019
Western Digital Technologies, Inc.
Zhigang BAI
G11 - INFORMATION STORAGE
Information
Patent Application
MULTIPLE-INPUT-MULTIPLE-OUTPUT SENSOR DESIGNS FOR MAGNETIC APPLICAT...
Publication number
20160055868
Publication date
Feb 25, 2016
HGST NETHERLANDS B.V.
Zheng Gao
G01 - MEASURING TESTING
Information
Patent Application
Non-Uniform Write Gap Perpendicular Writer for Shingle Writing
Publication number
20150055252
Publication date
Feb 26, 2015
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
High Data Rate Writer Design
Publication number
20140307348
Publication date
Oct 16, 2014
HEADWAY TECHNOLOGIES, INC.
Tai Min
G11 - INFORMATION STORAGE
Information
Patent Application
Graded Bevel Tapered Write Pole Design for Field Enhancement
Publication number
20140111887
Publication date
Apr 24, 2014
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
Graded Bevel Tapered Write Pole Design for Field Enhancement
Publication number
20140111886
Publication date
Apr 24, 2014
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
Shield Designs with Internal Magnetization Control for ATE Improvement
Publication number
20140078619
Publication date
Mar 20, 2014
HEADWAY TECHNOLOGIES, INC.
Suping Song
G11 - INFORMATION STORAGE
Information
Patent Application
Method of Forming a Writer with an AFM Write Gap
Publication number
20140037861
Publication date
Feb 6, 2014
HEADWAY TECHNOLOGIES, INC.
Tai Min
G11 - INFORMATION STORAGE
Information
Patent Application
Non-Uniform Write Gap Perpendicular Writer for Shingle Writing
Publication number
20140016232
Publication date
Jan 16, 2014
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
Method of Forming a Non-Uniform Write Gap Perpendicular Writer for...
Publication number
20140014617
Publication date
Jan 16, 2014
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
HIGH DATA RATE MAGNETIC WRITER DESIGN
Publication number
20130027809
Publication date
Jan 31, 2013
HEADWAY TECHNOLOGIES, INC.
Tai Min
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Non-uniform write gap perpendicular writer for shingle writing
Publication number
20120314324
Publication date
Dec 13, 2012
HEADWAY TECHNOLOGIES, INC.
Lijie Guan
G11 - INFORMATION STORAGE
Information
Patent Application
Writer with an AFM write gap
Publication number
20120295133
Publication date
Nov 22, 2012
HEADWAY TECHNOLOGIES, INC.
Tai Min
G11 - INFORMATION STORAGE
Information
Patent Application
Writer design with enhanced writability
Publication number
20120295132
Publication date
Nov 22, 2012
HEADWAY TECHNOLOGIES, INC.
Tai Min
G11 - INFORMATION STORAGE
Information
Patent Application
PMR WRITE HEAD WITH ASSISTED MAGNETIC LAYER
Publication number
20120257305
Publication date
Oct 11, 2012
HEADWAY TECHNOLOGIES, INC.
Yuhui Tang
G11 - INFORMATION STORAGE
Information
Patent Application
PMR head with integrated side shield (ISS)
Publication number
20120069470
Publication date
Mar 22, 2012
HEADWAY TECHNOLOGIES, INC.
Cherng Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recoding head with a laminated pole
Publication number
20120057257
Publication date
Mar 8, 2012
Kenichi Takano
G11 - INFORMATION STORAGE