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Fenglin Liu
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Milpitas, CA, US
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Patents Grants
last 30 patents
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
Method for manufacturing wraparound shield write head using hard masks
Patent number
8,801,943
Issue date
Aug 12, 2014
HGST Netherlands B.V.
Shiwen Huang
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for manufacturing a perpendicular magnetic recording writer...
Patent number
8,628,672
Issue date
Jan 14, 2014
Western Digital (Fremont), LLC
Weimin Si
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic write head manufactured by an enhanced damascene process p...
Patent number
8,547,660
Issue date
Oct 1, 2013
HGST Netherlands B.V.
Donald G. Allen
G11 - INFORMATION STORAGE
Information
Patent Grant
Process to make PMR writer with leading edge shield (LES) and leadi...
Patent number
8,524,095
Issue date
Sep 3, 2013
HGST Netherlands B.V.
Liubo Hong
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular write head with wrap around shield and conformal side...
Patent number
8,470,186
Issue date
Jun 25, 2013
HGST Netherlands B.V.
Yingjian Chen
G11 - INFORMATION STORAGE
Information
Patent Grant
Self-aligned full side shield PMR and method to make it
Patent number
8,472,138
Issue date
Jun 25, 2013
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Process to make PMR writer with leading edge shield (LES) and leadi...
Patent number
8,400,733
Issue date
Mar 19, 2013
HGST Netherlands B.V.
Kyusik Shin
G11 - INFORMATION STORAGE
Information
Patent Grant
Laminated high moment film for head applications
Patent number
8,329,320
Issue date
Dec 11, 2012
Headway Technologies, Inc.
Kunliang Zhang
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing a magnetic write head having a wrap around...
Patent number
8,201,320
Issue date
Jun 19, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Donald G. Allen
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head with a bottom side shield
Patent number
8,189,295
Issue date
May 29, 2012
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to make a perpendicular magnetic recording head with a side...
Patent number
8,117,738
Issue date
Feb 21, 2012
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing a self-aligned full side shield PMR
Patent number
7,979,978
Issue date
Jul 19, 2011
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to make a perpendicular magnetic recording head with a botto...
Patent number
7,978,431
Issue date
Jul 12, 2011
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head with a side write shield
Patent number
7,898,773
Issue date
Mar 1, 2011
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic write head having a wider trailing edge pole structure
Patent number
7,382,577
Issue date
Jun 3, 2008
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Self-aligned trimmed pole
Patent number
7,359,150
Issue date
Apr 15, 2008
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Method to make a wider trailing pole structure by self-aligned pole...
Patent number
6,960,281
Issue date
Nov 1, 2005
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Grant
Self-aligned pole trim process
Patent number
6,887,355
Issue date
May 3, 2005
Headway Technologies, Inc.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Method For Manufacturing Wraparound Shield Write Head Using Hard Masks
Publication number
20130026131
Publication date
Jan 31, 2013
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
Shiwen Huang
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR MANUFACTURING A PERPENDICULAR MAGNETIC WRITE POLE HAVING...
Publication number
20120154951
Publication date
Jun 21, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Wen-Chien D. Hsiao
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR WRITE HEAD WITH WRAP AROUND SHIELD AND CONFORMAL SIDE...
Publication number
20120125885
Publication date
May 24, 2012
YINGJIAN CHEN
G11 - INFORMATION STORAGE
Information
Patent Application
PROCESS TO MAKE PMR WRITER WITH LEADING EDGE SHIELD (LES) AND LEADI...
Publication number
20120127612
Publication date
May 24, 2012
Kyusik Shin
G11 - INFORMATION STORAGE
Information
Patent Application
PROCESS TO MAKE PMR WRITER WITH LEADING EDGE SHIELD (LES) AND LEADI...
Publication number
20120125886
Publication date
May 24, 2012
Liubo Hong
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording head with a bottom side shield
Publication number
20110261486
Publication date
Oct 27, 2011
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Self-aligned full side shield PMR and method to make it
Publication number
20110262775
Publication date
Oct 27, 2011
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC WRITE HEAD MANUFACTURED BY AN ENHANCED DAMASCENE PROCESS P...
Publication number
20110151279
Publication date
Jun 23, 2011
Donald G. Allen
G11 - INFORMATION STORAGE
Information
Patent Application
Method to make a perpendicular magnetic recording head with a side...
Publication number
20110146060
Publication date
Jun 23, 2011
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR MANUFACTURING A MAGNETIC WRITE HEAD HAVING A WRAP AROUND...
Publication number
20110146062
Publication date
Jun 23, 2011
Donald G. Allen
G11 - INFORMATION STORAGE
Information
Patent Application
Laminated high moment film for head applications
Publication number
20100119874
Publication date
May 13, 2010
HEADWAY TECHNOLOGIES, INC.
Kunliang Zhang
G11 - INFORMATION STORAGE
Information
Patent Application
Method to make a perpendicular magnetic recording head with a botto...
Publication number
20080297945
Publication date
Dec 4, 2008
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Self-aligned full side shield PMR and method to make it
Publication number
20080253035
Publication date
Oct 16, 2008
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Method to make a perpendicular magnetic recording head with a side...
Publication number
20070177301
Publication date
Aug 2, 2007
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic write head having a wider trailing edge pole structure
Publication number
20060012915
Publication date
Jan 19, 2006
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Self-aligned trimmed pole
Publication number
20050168871
Publication date
Aug 4, 2005
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Method to make a wider trailing pole structure by self-aligned pole...
Publication number
20040184190
Publication date
Sep 23, 2004
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE
Information
Patent Application
Self-aligned pole trim process
Publication number
20040085674
Publication date
May 6, 2004
HEADWAY TECHNOLOGIES, INC.
Cherng-Chyi Han
G11 - INFORMATION STORAGE