Hiromu Toba

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Transport system and transport method
- Patent number 7,002,968
- Issue date Feb 21, 2006
- Nippon Telegraph and Telephone Corporation
- Masahito Tomizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission method, optical transmitter, optical receiver,...
- Patent number 6,865,348
- Issue date Mar 8, 2005
- Nippon Telegraph and Telephone Corporation
- Yutaka Miyamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical Transmission System
- Publication number 20080226298
- Publication date Sep 18, 2008
- Nippon Telegraph and Telephone Corporation
- Hiroyuki Fukuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical transmission method, optical tramsmitter, optical receiver,...
- Publication number 20010017724
- Publication date Aug 30, 2001
- Yutaka Miyamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE