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Inventor
KAWANO SHIKIKO
JP
2 patents
Patents
2 patents
US7603423B2
Oct 13, 2009
Communication system with primary device and standby device to prevent suspension of service of the system
NTT DOCOMO INC
12 citations
82
US7590697B2
Sep 15, 2009
Mail server, mobile communication system, and program therefor
NTT DOCOMO INC
16 citations
80