Hajime Shichijo

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Operating panel
- Patent number 4,613,736
- Issue date Sep 23, 1986
- Sony Corporation
- Hajime Shichijo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Presettable tuning apparatus
- Patent number 4,298,851
- Issue date Nov 3, 1981
- Sony Corporation
- Hajime Shichijo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multi-band voltage variable capacitance tuner having automatic and...
- Patent number 4,263,674
- Issue date Apr 21, 1981
- Sony Corporation
- Kokichi Morii
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tuning apparatus for providing tuning indication
- Patent number 4,225,971
- Issue date Sep 30, 1980
- Sony Corporation
- Hajime Shichijo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Remote control apparatus for presetting a tuning device to desired...
- Patent number 4,184,446
- Issue date Jan 22, 1980
- Sony Corporation
- Hajime Shichijo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tuning apparatus
- Patent number 4,184,447
- Issue date Jan 22, 1980
- Sony Corporation
- Hajime Shichijo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tuning apparatus
- Patent number 4,167,702
- Issue date Sep 11, 1979
- Sony Corporation
- Hajime Shichijo
- H03 - BASIC ELECTRONIC CIRCUITRY