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Shinjuku-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Perpendicular magnetic recording medium and method of manufacturing...
Patent number
9,159,351
Issue date
Oct 13, 2015
WD Media (Singapore) Pte. Ltd.
Kazuaki Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium and perpendicular magnetic...
Patent number
8,758,911
Issue date
Jun 24, 2014
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
8,431,257
Issue date
Apr 30, 2013
WD Media (Singapore) Pte. Ltd.
Kong Kim
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing a perpendicular magnetic recording medium
Patent number
8,298,689
Issue date
Oct 30, 2012
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording disk and manufacturing method thereof
Patent number
8,003,237
Issue date
Aug 23, 2011
WD Media, Inc.
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
7,993,765
Issue date
Aug 9, 2011
WD Media (Singapore) Pte. Ltd.
Kong Kim
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium substrate and perpendicular magnetic reco...
Patent number
7,955,723
Issue date
Jun 7, 2011
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk substrate for a perpendicular magnetic recording medium, perpe...
Patent number
7,357,998
Issue date
Apr 15, 2008
Hoya Corporation
Kong Kim
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING...
Publication number
20100279151
Publication date
Nov 4, 2010
HOYA CORPORATION
Kazuaki Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM
Publication number
20100247963
Publication date
Sep 30, 2010
HOYA CORPORATION
Kong KIM
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Recording Medium Substrate and Perpendicular Magnetic Reco...
Publication number
20100203358
Publication date
Aug 12, 2010
HOYA CORPORATION
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING A PERPENDICULAR MAGNETIC RECORDING MEDIUM
Publication number
20100196741
Publication date
Aug 5, 2010
HOYA CORPORATION
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND PERPENDICULAR MAGNETIC...
Publication number
20100190035
Publication date
Jul 29, 2010
HOYA CORPORATION
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING DISK AND MANUFACTURING METHOD THEREOF
Publication number
20090081483
Publication date
Mar 26, 2009
HOYA CORPORATION
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording medium
Publication number
20050019608
Publication date
Jan 27, 2005
Hoya Corporation
Kong Kim
G11 - INFORMATION STORAGE
Information
Patent Application
Disk substrate for a perpendicular magnetic recording medium, perpe...
Publication number
20040146686
Publication date
Jul 29, 2004
Hoya Corporation
Kong Kim
G11 - INFORMATION STORAGE