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Television telephone
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Patent number 5,966,164
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Issue date Oct 12, 1999
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Hitachi, Ltd.
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Hiroshi Gotoh
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-
-
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Television telephone
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Patent number 5,677,727
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Issue date Oct 14, 1997
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Hitachi, Ltd.
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Hiroshi Gotoh
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Video telephone
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Patent number 5,587,735
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Issue date Dec 24, 1996
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Hitachi, Ltd.
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Kiyoshi Ishida
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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-
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Video telephone equipment
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Patent number 5,491,507
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Issue date Feb 13, 1996
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Hitachi, Ltd.
-
Koichi Umezawa
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Video telephone system
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Patent number 5,444,477
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Issue date Aug 22, 1995
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Hitachi, Ltd.
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Hitoshi Yamadera
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Video telephone
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Patent number 5,400,068
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Issue date Mar 21, 1995
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Hitachi, Ltd.
-
Kiyoshi Ishida
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Television telephone
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Patent number 5,396,269
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Issue date Mar 7, 1995
-
Hitachi, Ltd.
-
Hiroshi Gotoh
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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