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Shigekazu Ohtomo
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Fujisawa-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Thin film magnetic head for high density recording and having a lea...
Patent number
7,821,737
Issue date
Oct 26, 2010
Hitachi Global Storage Technologies Netherlands B.V.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic write head including a magnetic pole piece having a protru...
Patent number
7,576,952
Issue date
Aug 18, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Yoji Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic head having magnetic pole edge layer for achievi...
Patent number
7,310,203
Issue date
Dec 18, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Nobuo Yoshida
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film head, producing method thereof and magnetic disk apparatus
Patent number
7,142,392
Issue date
Nov 28, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film head, producing method thereof and magnetic disk apparatus
Patent number
7,142,391
Issue date
Nov 28, 2006
Hitachi Global Storage Tehcnologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic head
Patent number
7,061,726
Issue date
Jun 13, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/producing separated type magnetic head
Patent number
7,042,677
Issue date
May 9, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic head having inductive write portion features tha...
Patent number
6,791,795
Issue date
Sep 14, 2004
Hitachi, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Thin film magnetic head for high density recording
Publication number
20070019326
Publication date
Jan 25, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic write head
Publication number
20050122622
Publication date
Jun 9, 2005
Hitachi Global Storage Technologies Netherlands, B.V.
Yoji Maruyama
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film head, producing method thereof and magnetic disk apparatus
Publication number
20050078412
Publication date
Apr 14, 2005
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film magnetic head
Publication number
20040223265
Publication date
Nov 11, 2004
Hitachi Global Storage Technologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Application
Recording/producing separated type magnetic head
Publication number
20040105189
Publication date
Jun 3, 2004
Hitachi Global Storage Technologies Japan, Ltd.
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film magnetic head and method of manufacturing same
Publication number
20030053251
Publication date
Mar 20, 2003
Nobuo Yoshida
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film magnetic head and a method of producing the same
Publication number
20030048581
Publication date
Mar 13, 2003
Shigekazu Ohtomo
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film head, producing method thereof and magnetic disk apparatus
Publication number
20030021064
Publication date
Jan 30, 2003
Shigekazu Ohtomo
B82 - NANO-TECHNOLOGY