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Kouji KITSUNAI
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Shinjuku-ku, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Glass substrate for a magnetic disk, magnetic disk and method of ma...
Patent number
9,105,293
Issue date
Aug 11, 2015
Hoya Corporation
Kouji Kitsunai
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for magnetic disk and magnetic disk
Patent number
9,012,047
Issue date
Apr 21, 2015
Hoya Corporation
Kouji Kitsunai
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for magnetic disk and magnetic disk
Patent number
8,734,967
Issue date
May 27, 2014
Hoya Corporation
Kouji Kitsunai
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for a magnetic disk, magnetic disk and method of ma...
Patent number
8,623,530
Issue date
Jan 7, 2014
Hoya Corporation
Kouji Kitsunai
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for a magnetic disk, magnetic disk and method of ma...
Patent number
8,241,769
Issue date
Aug 14, 2012
Hoya Corporation
Kouji Kitsunai
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
SUBSTRATE FOR MAGNETIC DISK AND MAGNETIC DISK
Publication number
20140220386
Publication date
Aug 7, 2014
HOYA CORPORATION
Kouji KITSUNAI
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR A MAGNETIC DISK, MAGNETIC DISK AND METHOD OF MA...
Publication number
20140085750
Publication date
Mar 27, 2014
HOYA CORPORATION
Kouji KITSUNAI
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR A MAGNETIC DISK, MAGNETIC DISK AND METHOD OF MA...
Publication number
20120282493
Publication date
Nov 8, 2012
HOYA CORPORATION
Kouji KITSUNAI
G11 - INFORMATION STORAGE
Information
Patent Application
SUBSTRATE FOR MAGNETIC DISK AND MAGNETIC DISK
Publication number
20110109994
Publication date
May 12, 2011
HOYA CORPORATION
Kouji Kitsunai
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR A MAGNETIC DISK, MAGNETIC DISK AND METHOD OF MA...
Publication number
20100273030
Publication date
Oct 28, 2010
HOYA CORPORATION
Kouji KITSUNAI
G11 - INFORMATION STORAGE