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Patents Grants
last 30 patents
Information
Patent Grant
Perpendicular magnetic recording disc
Patent number
9,349,404
Issue date
May 24, 2016
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording disc
Patent number
9,240,204
Issue date
Jan 19, 2016
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
Patent number
9,064,518
Issue date
Jun 23, 2015
WD Media (Singapore) Pte. Ltd.
Takahiro Onoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing magnetic recording medium
Patent number
9,005,699
Issue date
Apr 14, 2015
WD Media, LLC
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium and process for manufacture...
Patent number
8,871,368
Issue date
Oct 28, 2014
WD Media (Singapore) Pte. Ltd.
Takahiro Onoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium and manufacturing method of...
Patent number
8,795,857
Issue date
Aug 5, 2014
WD Media (Singapore) Pte. Ltd.
Kenji Ayama
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
8,697,261
Issue date
Apr 15, 2014
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing perpendicular magnetic recording medium and...
Patent number
8,623,528
Issue date
Jan 7, 2014
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic disc
Patent number
8,546,000
Issue date
Oct 1, 2013
WD Media, LLC
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium having patterned auxiliary recording laye...
Patent number
8,367,228
Issue date
Feb 5, 2013
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Perpendicular magnetic recording medium and method of manufacturing...
Patent number
8,309,239
Issue date
Nov 13, 2012
WD Media (Singapore) Pte. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium
Patent number
8,142,916
Issue date
Mar 27, 2012
WD Media (Singapore) Pte, Ltd
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium
Patent number
8,057,926
Issue date
Nov 15, 2011
WD Media(Singapore) Pte. Ltd.
Kenji Ayama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and method for manufacturing magnetic rec...
Patent number
7,833,639
Issue date
Nov 16, 2010
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
B82 - NANO-TECHNOLOGY
Patents Applications
last 30 patents
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM
Publication number
20150262602
Publication date
Sep 17, 2015
WD MEDIA (SINGAPORE) PTE. LTD.
Takahiro Onoue
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular Magnetic Recording Disc
Publication number
20120189872
Publication date
Jul 26, 2012
WD MEDIA (SINGAPORE) PTE. LTD.
Teiichiro Umezawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Perpendicular Magnetic Recording Disc
Publication number
20120141833
Publication date
Jun 7, 2012
WD MEDIA (SINGAPORE) PTE. LTD.
TEIICHIRO UMEZAWA
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC DISC
Publication number
20110268990
Publication date
Nov 3, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
Teiichiro UMEZAWA
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING...
Publication number
20110244119
Publication date
Oct 6, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
TEIICHIRO UMEZAWA
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM
Publication number
20110223446
Publication date
Sep 15, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
Takahiro Onoue
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND PROCESS FOR MANUFACTURE...
Publication number
20110212346
Publication date
Sep 1, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
Takahiro Onoue
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR MANUFACTURING PERPENDICULAR MAGNETIC RECORDING MEDIUM AN...
Publication number
20110111262
Publication date
May 12, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
VERTICAL MAGNETIC RECORDING MEDIUM
Publication number
20110104516
Publication date
May 5, 2011
WD Media (Singapore) Ple. Ltd.
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND METHOD FOR MANUFACTURING MAGNETIC REC...
Publication number
20110039125
Publication date
Feb 17, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
YOSHIAKI SONOBE
G11 - INFORMATION STORAGE
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
20100209740
Publication date
Aug 19, 2010
HOYA CORPORATION
Kenji Ayama
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD OF...
Publication number
20100196740
Publication date
Aug 5, 2010
HOYA CORPORATION
Kenji Ayama
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM
Publication number
20100119878
Publication date
May 13, 2010
HOYA CORPORATION
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING...
Publication number
20100112379
Publication date
May 6, 2010
HOYA CORPORATION
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD
Publication number
20090191331
Publication date
Jul 30, 2009
Hoya Corporation
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING DISK AND METHOD OF MANUFACTURING T...
Publication number
20090117408
Publication date
May 7, 2009
HOYA CORPORATION
Teiichiro Umezawa
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND METHOD FOR MANUFACTURING MAGNETIC REC...
Publication number
20080090104
Publication date
Apr 17, 2008
HOYA CORPORATION
Yoshiaki SONOBE
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM
Publication number
20080075845
Publication date
Mar 27, 2008
HOYA CORPORATION
Yoshiaki SONOBE
G11 - INFORMATION STORAGE