Kikuo Usugi

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Patents Grantslast 30 patents

Information Patent Grant
Control system for channel selection
- Patent number 4,380,826
- Issue date Apr 19, 1983
- Clarion Co., Ltd.
- Kikuo Usugi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic attenuator apparatus
- Patent number 4,276,508
- Issue date Jun 30, 1981
- Clarion Co., Ltd.
- Kikuo Usugi
- H03 - BASIC ELECTRONIC CIRCUITRY