Inventor
SERA TAKAFUMI
JP6 patents
Patents
6 patentsUS6415313B1Jul 2, 2002
Communication quality control system
NEC CORP161 citations97
US6507873B1Jan 14, 2003
Network address assigning system
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US6829219B1Dec 7, 2004
Routing processing method in packet transmission and system therefor
NEC CORP7 citations72
US6879589B2Apr 12, 2005
Data packet transfer network and data packet transfer method
NEC CORP7 citations71
US6498834B1Dec 24, 2002
Speech information communication system
NEC CORP10 citations71
US7890515B2Feb 15, 2011
Article distribution system and article distribution method used in this system
NEC CORP0 citations40