Toshirou Kawahara

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Chiyoda-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Base station and communication system to restrict communication ser...
- Patent number 9,503,920
- Issue date Nov 22, 2016
- NTT DoCoMo, Inc.
- Takao Someya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulation device, demodulation device, and acoustic signal transmi...
- Patent number 8,411,531
- Issue date Apr 2, 2013
- NTT DoCoMo, Inc.
- Hosei Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Proxy terminal, server apparatus, proxy terminal communication path...
- Patent number 8,179,818
- Issue date May 15, 2012
- NTT DoCoMo, Inc.
- Takashi Yoshikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
BASE STATION AND COMMUNICATION SYSTEM
- Publication number 20140295823
- Publication date Oct 2, 2014
- Takao Someya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MODULATION DEVICE, DEMODULATION DEVICE, AND ACOUSTIC SIGNAL TRANSMI...
- Publication number 20100182876
- Publication date Jul 22, 2010
- NTT DoCoMo, Inc.
- Hosei Matsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROXY TERMINAL, SERVICE DEVICE, PROXY TERMINAL COMMUNICATION PATH S...
- Publication number 20090285118
- Publication date Nov 19, 2009
- NTT DoCoMo, Inc.
- Takashi Yoshikawa
- G06 - COMPUTING CALCULATING COUNTING