Tatsuya Nakazawa

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Minato-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Erasure of DTMF signal transmitted as speech data
- Patent number 7,856,096
- Issue date Dec 21, 2010
- NEC Corporation
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for connection between communication networks of different t...
- Patent number 7,796,584
- Issue date Sep 14, 2010
- NEC Corporation
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
AUDIO PACKET RECEIVER, AUDIO PACKET RECEIVING METHOD AND PROGRAM
- Publication number 20100195490
- Publication date Aug 5, 2010
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Protocol Conversion System in Media Communication between a Packet-...
- Publication number 20100128715
- Publication date May 27, 2010
- NEC Corporation
- Hiroaki Dei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Media stream relay device and method
- Publication number 20070242663
- Publication date Oct 18, 2007
- NEC Corporation
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Audio Communication Method And Device
- Publication number 20070223660
- Publication date Sep 27, 2007
- Hiroaki Dei
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Method for connection between communication networks of different t...
- Publication number 20070136494
- Publication date Jun 14, 2007
- NEC Corporation
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Erasure of DTMF signal transmitted as speech data
- Publication number 20060182233
- Publication date Aug 17, 2006
- NEC Corporation
- Tatsuya Nakazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE