Toshibumi Kawano

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for notification of maintenance information using...
- Patent number 7,120,686
- Issue date Oct 10, 2006
- NEC Corporation
- Susumu Sasabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
AUTOMATIC IDENTIFICATION LEVEL CONTROL CIRCUIT, IDENTIFICATION LEVE...
- Patent number 6,420,962
- Issue date Jul 16, 2002
- NEC Corporation
- Yoshihiro Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical repeatered transmission with fault locating capability
- Patent number 5,436,750
- Issue date Jul 25, 1995
- NEC Corporation
- Toshibumi Kawano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and system for notification of maintenance information using...
- Publication number 20030046329
- Publication date Mar 6, 2003
- NEC Corporation
- Susumu Sasabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE