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Masashi Ohno
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Kodaira, JP
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last 30 patents
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Patent Grant
Network broadcast communication system and communication network co...
Patent number
5,526,351
Issue date
Jun 11, 1996
Tatsuo Mochinaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speech packet communication system
Patent number
5,406,560
Issue date
Apr 11, 1995
Hitachi, Ltd.
Kazuhiro Kondo
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Grant
Network system
Patent number
5,144,622
Issue date
Sep 1, 1992
Hitachi, Ltd.
Yoshihiro Takiyasu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speech packet communication system and method
Patent number
5,130,985
Issue date
Jul 14, 1992
Hitachi, Ltd.
Kazuhiro Kondo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network system
Patent number
4,975,906
Issue date
Dec 4, 1990
Hitachi, Ltd.
Yoshihiro Takiyasu
H04 - ELECTRIC COMMUNICATION TECHNIQUE