Shigeru Aoyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Selective communication system having separate connection circuits...
- Patent number 5,455,568
- Issue date Oct 3, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Tatsuki Ichihashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cell exchange apparatus
- Patent number 5,210,744
- Issue date May 11, 1993
- Mitsubishi Denki Kabushiki Kaisha
- Hideaki Yamanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE