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Tetsuhiko Takahashi
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Yokohama, JP
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Patents Grants
last 30 patents
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Patent Grant
Gateway device, optical network terminal, and passive optical netwo...
Patent number
8,488,445
Issue date
Jul 16, 2013
Hitachi, Ltd.
Masatoshi Takihiro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
GATEWAY DEVICE, OPTICAL NETWORK TERMINAL, AND PASSIVE OPTICAL NETWO...
Publication number
20080298799
Publication date
Dec 4, 2008
Masatoshi Takihiro
H04 - ELECTRIC COMMUNICATION TECHNIQUE