Keiji Fukuda

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Exchange connected to a control channel junction line
- Patent number 5,555,541
- Issue date Sep 10, 1996
- Fujitsu Limited
- Shigehiko Yazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subrate control channel exchange system
- Patent number 5,467,353
- Issue date Nov 14, 1995
- Fujitsu Limited
- Keiji Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control channel terminating interface and its testing device for se...
- Patent number 5,430,708
- Issue date Jul 4, 1995
- Fujiisu Limited
- Keiji Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE