Daisuke Umehara

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Relay station, wireless relay system, and access control method in...
- Patent number 8,982,770
- Issue date Mar 17, 2015
- Nippon Telegraph and Telephone Corporation
- Takatoshi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ACCESS CONTROL SYSTEM, ACCESS CONTROL METHOD, RELAY STATION APPARAT...
- Publication number 20120201193
- Publication date Aug 9, 2012
- Nippon Telegraph and Telephone Corporation
- Takatoshi Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE