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Samuel W. Yuan
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San Carlos, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Heat assisted magnetic recording writer having a recessed pole
Patent number
9,142,233
Issue date
Sep 22, 2015
Western Digital (Fremont), LLC
Matthew R. Gibbons
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording write transducer having an improved trailing sur...
Patent number
9,082,423
Issue date
Jul 14, 2015
Western Digital (Fremont), LLC
Feng Liu
G11 - INFORMATION STORAGE
Information
Patent Grant
Heat assisted magnetic recording transducers having a recessed pole
Patent number
8,947,985
Issue date
Feb 3, 2015
Western Digital (Fremont), LLC
Michael V. Morelli
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing a magnetic read sensor with narrow track w...
Patent number
8,617,408
Issue date
Dec 31, 2013
HGST Netherlands B.V.
Hamid Balamane
G11 - INFORMATION STORAGE
Information
Patent Grant
Integrated touch-down pad and touch-down sensor
Patent number
8,335,053
Issue date
Dec 18, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Yingjian Chen
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for making coplanar write head pole tips
Patent number
8,276,257
Issue date
Oct 2, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Terence Tin-Lok Lam
G11 - INFORMATION STORAGE
Information
Patent Grant
Reduction of interference pickup in heads for magnetic recording by...
Patent number
7,573,677
Issue date
Aug 11, 2009
International Business Machines Corporation
Vladimir Nikitin
G11 - INFORMATION STORAGE
Information
Patent Grant
Laminated write gap to improve writer performance
Patent number
7,525,760
Issue date
Apr 28, 2009
Hitachi Global Storage Technologies B.V.
Wen-Chien Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for fabricating a magnetic recording head with a laminated...
Patent number
7,500,302
Issue date
Mar 10, 2009
Hitachi Global Storage Technologies, Netherlands B.V.
Wen-Chien Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having a damascene-fabricated write coil structure wi...
Patent number
7,190,552
Issue date
Mar 13, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Wen-chien David Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with magnetic layers of differing widths and third po...
Patent number
7,092,206
Issue date
Aug 15, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Wen-Chien D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having a write coil structure with a reduced electric...
Patent number
7,079,353
Issue date
Jul 18, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Wen-chien David Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of fabricating a magnetic transducer with a write head havin...
Patent number
6,804,879
Issue date
Oct 19, 2004
Hitachi Global Storage Technologies Netherlands, B.V.
Richard D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of making a magnetic head assembly having open yoke write he...
Patent number
6,725,527
Issue date
Apr 27, 2004
Hitachi Global Storage Technologies Netherlands B.V.
Thomas Young Chang
G11 - INFORMATION STORAGE
Information
Patent Grant
Enhanced low profile magnet write head
Patent number
6,687,083
Issue date
Feb 3, 2004
Hitachi Global Storage Technologies Netherlands B.V.
Wenchein Hsiao
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having write head with double split yoke
Patent number
6,542,331
Issue date
Apr 1, 2003
International Business Machines Corporation
Thomas Young Chang
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film read head with coplanar pole tips
Patent number
6,459,552
Issue date
Oct 1, 2002
Francis H. Liu
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetoresistive transducer having a common magnetic bias using ass...
Patent number
6,392,850
Issue date
May 21, 2002
Read-Rite Corporation
Hua-Ching Tong
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetic head assembly having open yoke write head with highly defi...
Patent number
6,330,128
Issue date
Dec 11, 2001
International Business Machines Corporation
Thomas Young Chang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for forming low profile multi-layer coil merged thin film ma...
Patent number
6,325,947
Issue date
Dec 4, 2001
International Business Machines Corporation
Glen Adam Garfunkel
G11 - INFORMATION STORAGE
Information
Patent Grant
High density giant magnetoresistive transducer with recessed sensor
Patent number
6,219,205
Issue date
Apr 17, 2001
Read-Rite Corporation
Samuel W. Yuan
B82 - NANO-TECHNOLOGY
Information
Patent Grant
High moment bilayer first pole piece layer of a write head with hig...
Patent number
6,163,442
Issue date
Dec 19, 2000
International Business Machines Corporation
Hardayal Singh Gill
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film read head with coplanar pole tips
Patent number
6,073,338
Issue date
Jun 13, 2000
Read-Rite Corporation
Francis H. Liu
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Low profile multi-layer coil merged thin film magnetic head
Patent number
6,034,848
Issue date
Mar 7, 2000
International Business Machines Corporation
Glen Adam Garfunkel
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistive sensor having a pinned soft magnetic layer
Patent number
5,923,505
Issue date
Jul 13, 1999
Read-Rite Corporation
Derek Jan Kroes
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Read/write head having a GMR sensor biased by permanent magnets loc...
Patent number
5,883,763
Issue date
Mar 16, 1999
Read-Rite Corporation
Samuel W. Yuan
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetoresistive transducer having a common magnetic bias using ass...
Patent number
5,859,754
Issue date
Jan 12, 1999
Read-Rite Corporation
Hua-Ching Tong
B82 - NANO-TECHNOLOGY
Information
Patent Grant
CIP GMR sensor coupled to biasing magnet with spacer therebetween
Patent number
5,818,685
Issue date
Oct 6, 1998
Read-Rite Corporation
Pradeep K. Thayamballi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistive reas transducer with exchange biasing of magnetore...
Patent number
5,748,413
Issue date
May 5, 1998
Read-Rite Corporation
Marcos M. Lederman
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistive read transducers with multiple longitudinal stabil...
Patent number
5,739,987
Issue date
Apr 14, 1998
Read-Rite Corporation
Samuel W. Yuan
B82 - NANO-TECHNOLOGY
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR MANUFACTURING A MAGNETIC READ SENSOR WITH NARROW TRACK W...
Publication number
20130092654
Publication date
Apr 18, 2013
Hitachi Global Storage Technologies Netherlands B.V.
Hamid Balamane
G01 - MEASURING TESTING
Information
Patent Application
INTEGRATED TOUCH-DOWN PAD AND TOUCH-DOWN SENSOR
Publication number
20120105999
Publication date
May 3, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Yingjian Chen
G11 - INFORMATION STORAGE
Information
Patent Application
DUAL POLARITY BIAS FOR PROLONGING THE LIFE OF A HEATING ELEMENT IN...
Publication number
20070268624
Publication date
Nov 22, 2007
HITACHI GLOBAL STORAGE TECHNOLOGIES
Jih-Shiuan Luo
G11 - INFORMATION STORAGE
Information
Patent Application
Process for fabricating a magnetic recording head with a laminated...
Publication number
20060230602
Publication date
Oct 19, 2006
Wen-Chien Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR OPTIMIZING RECORD QUALITY WITH VARYING TRA...
Publication number
20060227449
Publication date
Oct 12, 2006
Xiaodong Che
G11 - INFORMATION STORAGE
Information
Patent Application
Laminated write gap to improve writer performance
Publication number
20060227456
Publication date
Oct 12, 2006
Wen-Chien Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head having a write coil structure with a reduced electric...
Publication number
20060152849
Publication date
Jul 13, 2006
Wen-Chien David Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Tungsten heat sink structures in a thin film magnetic head
Publication number
20060098337
Publication date
May 11, 2006
Hung-Chin Guthrie
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for providing a write head having well-defined...
Publication number
20060023353
Publication date
Feb 2, 2006
Hitachi Global Technologies Netherlands B.V.
Terence Tin-Lok Lam
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for processing sub-micron write head flare def...
Publication number
20060002016
Publication date
Jan 5, 2006
Vladimir Nikitin
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head having a write coil structure with a reduced electric...
Publication number
20050024764
Publication date
Feb 3, 2005
Wen-Chien David Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head with thinned T-shaped write pole and its fabrication
Publication number
20040264046
Publication date
Dec 30, 2004
Hitachi Global Storage Technologies
Wen-Chien D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic transducer with a write head having a multi-layer coil
Publication number
20040190196
Publication date
Sep 30, 2004
Richard D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic transducer with a write head having a multi-layer coil
Publication number
20040080866
Publication date
Apr 29, 2004
Richard D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording heads having thin thermally conductive undercoating
Publication number
20040070870
Publication date
Apr 15, 2004
International Business Machines.
Wen-Chien Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head having a bilayer pole tip and method of making the same
Publication number
20030179497
Publication date
Sep 25, 2003
Tom King Harris
G11 - INFORMATION STORAGE
Information
Patent Application
Reduction of interference pickup in heads for magnetic recording by...
Publication number
20030165034
Publication date
Sep 4, 2003
Vladimir Nikitin
G11 - INFORMATION STORAGE
Information
Patent Application
Enhanced low profile magnet write head
Publication number
20030039067
Publication date
Feb 27, 2003
International Business Machines Corporation
Wenchein Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic transducer with electrically conductive shield for reducin...
Publication number
20020085316
Publication date
Jul 4, 2002
Richard Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
Method of making a magnetic head assembly having open yoke write he...
Publication number
20010037556
Publication date
Nov 8, 2001
Thomas Young Chang
G11 - INFORMATION STORAGE