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Ichikawa-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Computer system, information collection support device, and method...
Patent number
8,234,584
Issue date
Jul 31, 2012
Hitachi, Ltd.
Masahiro Motobayashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information registration method and document information processing...
Patent number
6,490,583
Issue date
Dec 3, 2002
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information registration method and document information processing...
Patent number
6,334,130
Issue date
Dec 25, 2001
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information registration method and document information processing...
Patent number
6,178,422
Issue date
Jan 23, 2001
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Document management system integrating an environment for executing...
Patent number
5,887,171
Issue date
Mar 23, 1999
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Document searching method using forward and backward citation tables
Patent number
5,832,476
Issue date
Nov 3, 1998
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
Computer system, information collection support device, and method...
Publication number
20100031178
Publication date
Feb 4, 2010
Hitachi, Ltd.
Masahiro Motobayashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information registration method and document information processing...
Publication number
20010056421
Publication date
Dec 27, 2001
Hitachi, Ltd.
Katsumi Tada
G06 - COMPUTING CALCULATING COUNTING