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Tsuneyuki Sakano
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Kanagawa, JP
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last 30 patents
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Patent Grant
Method and device for connecting networks
Patent number
7,233,995
Issue date
Jun 19, 2007
Oki Electric Industry Co., Ltd.
Kohei Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 patents
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Patent Application
Method and a system for providing ringback information
Publication number
20070165814
Publication date
Jul 19, 2007
Oki Electric Industry Co., Ltd.
Caidong Wang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Method and device for connecting networks
Publication number
20020161899
Publication date
Oct 31, 2002
Kohei Yamaguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE