Seiji Fukuda

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Digital modulating and demodulating device which is compatible with...
- Patent number 7,551,642
- Issue date Jun 23, 2009
- NEC Corporation
- Yoshio Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
SDH radio communication system and transmitter/receiver equipment t...
- Patent number 5,481,547
- Issue date Jan 2, 1996
- NEC Corporation
- Katsuhiro Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fault detection signal transmission system
- Patent number 4,876,686
- Issue date Oct 24, 1989
- NEC Corporation
- Katsuhiro Sasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Digital modulating and demodulating device which is compatible with...
- Publication number 20060039414
- Publication date Feb 23, 2006
- NEC Corporation
- Yoshio Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE