Takafumi Sera

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Minato-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Article distribution system and article distribution method used in...
- Patent number 7,890,515
- Issue date Feb 15, 2011
- NEC Corporation
- Noriko Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data packet transfer network and data packet transfer method
- Patent number 6,879,589
- Issue date Apr 12, 2005
- NEC Corporation
- Takafumi Sera
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Routing processing method in packet transmission and system therefor
- Patent number 6,829,219
- Issue date Dec 7, 2004
- NEC Corporation
- Masahiko Honda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network address assigning system
- Patent number 6,507,873
- Issue date Jan 14, 2003
- NEC Corporation
- Yuichi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speech information communication system
- Patent number 6,498,834
- Issue date Dec 24, 2002
- NEC Corporation
- Takafumi Sera
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Communication quality control system
- Patent number 6,415,313
- Issue date Jul 2, 2002
- NEC Corporation
- Kenshin Yamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Article distribution system and article distribution method used in...
- Publication number 20070136084
- Publication date Jun 14, 2007
- NEC Corporation
- Noriko Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data packet transfer network and data packet transfer method
- Publication number 20010005371
- Publication date Jun 28, 2001
- NEC Corporation
- Takafumi Sera
- H04 - ELECTRIC COMMUNICATION TECHNIQUE