Kenichi Kanno

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
System for setting registration mode for key telephone set
- Patent number 4,823,377
- Issue date Apr 18, 1989
- Tamura Electric Works, Ltd.
- Ryuzo Sugiura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data transmission system of key telephone system
- Patent number 4,794,641
- Issue date Dec 27, 1988
- Tamura Electric Works, Ltd.
- Kenichi Kanno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data transmission system of key telephone system
- Patent number 4,731,820
- Issue date Mar 15, 1988
- Tamura Electric Works, Ltd.
- Kenichi Kanno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE