Tetsuya Sakata

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Communication state management system and method in an intelligent...
- Patent number 5,896,441
- Issue date Apr 20, 1999
- Fujitsu Limited
- Mitsunori Akazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
ISDN line circuit monitor system
- Patent number 5,533,007
- Issue date Jul 2, 1996
- Fujitsu Limited
- Akira Orita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE