Tetsuya TAKEKAWA

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Osaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Key telephone system, control method, terminal, and program
- Patent number 10,135,998
- Issue date Nov 20, 2018
- NEC PLATFORMS, LTD.
- Hideo Maki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
KEY TELEPHONE SYSTEM, CONTROL METHOD, TERMINAL, AND PROGRAM
- Publication number 20160080580
- Publication date Mar 17, 2016
- NEC PLATFORMS, LTD.
- Hideo MAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE