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Keizou Mizuguchi
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Kanagawa, JP
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last 30 patents
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Patent Grant
Communication network management system for displaying operation st...
Patent number
5,483,631
Issue date
Jan 9, 1996
Hitachi, Ltd.
Yasuhiko Nagai
G06 - COMPUTING CALCULATING COUNTING
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Patent Grant
Data link control method and system for integrated services digital...
Patent number
5,051,992
Issue date
Sep 24, 1991
Hitachi, Ltd.
Hidenobu Taniguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE