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Yoshiaki Sonobe
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Shinjuku-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing magnetic recording medium, and magnetic rec...
Patent number
9,424,873
Issue date
Aug 23, 2016
WD Media (Singapore) Pte. Ltd.
Masanori Aniya
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Magnetic recording medium including tailored exchange coupling laye...
Patent number
9,093,100
Issue date
Jul 28, 2015
WD Media (Singapore) Pte. Ltd.
Junichi Yasumori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording medium manufacturi...
Patent number
8,795,790
Issue date
Aug 5, 2014
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
B82 - NANO-TECHNOLOGY
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
Thermally assisted magnetic recording disk with ion-implant facilit...
Patent number
8,634,155
Issue date
Jan 21, 2014
WD Media (Singapore) Pte. Ltd.
Junichi Yasumori
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetic recording medium with guard layer between auxiliary and ma...
Patent number
8,605,388
Issue date
Dec 10, 2013
WD Media (Singapore) Pte. Ltd.
Junichi Yasumori
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording disk and manufacturing method thereof
Patent number
8,603,650
Issue date
Dec 10, 2013
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Magnetic recording medium and manufacturing method of the same
Patent number
8,414,966
Issue date
Apr 9, 2013
WD Media (Singapore) Pte. Ltd.
Junichi Yasumori
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
Magnetic recording medium having soft magnetic layer and perpendicu...
Patent number
7,983,003
Issue date
Jul 19, 2011
WD Media (Singapore) Pte. Ltd.
Yoshiaki Sonobe
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
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD OF THE SAME
Publication number
20130216865
Publication date
Aug 22, 2013
WD MEDIA (SINGAPORE) PTE. LTD.
Junichi YASUMORI
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING MEDIUM MANUFACTURI...
Publication number
20120170152
Publication date
Jul 5, 2012
WD MEDIA (SINGAPORE) PTE. LTD.
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Application
Thermally Assisted Magnetic Recording Disk, Manufacturing Method Th...
Publication number
20120075740
Publication date
Mar 29, 2012
WD MEDIA (SINGAPORE) PTE. LTD.
JUNICHI YASUMORI
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM, AND MAGNETIC REC...
Publication number
20110299194
Publication date
Dec 8, 2011
WD MEDIA (SINGAPORE) PTE. LTD.
Masanori Aniya
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD OF THE MAGNETIC...
Publication number
20100321826
Publication date
Dec 23, 2010
HOYA CORPORATION
Junichi Yasumori
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD OF THE SAME
Publication number
20100309584
Publication date
Dec 9, 2010
HOYA CORPORATION
Junichi Yasumori
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 disk and manufacturing method thereof
Publication number
20070148499
Publication date
Jun 28, 2007
Hoya Corporation
Yoshiaki Sonobe
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording medium
Publication number
20070053106
Publication date
Mar 8, 2007
Hoya Corporation
Yoshiaki Sonobe
G11 - INFORMATION STORAGE