Akira Tooyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Horizontal scanning rate correction apparatus
- Patent number 4,314,179
- Issue date Feb 2, 1982
- Sony Corporation
- Akira Tooyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Deflection control apparatus for a beam index color cathode ray tube
- Patent number 4,287,531
- Issue date Sep 1, 1981
- Sony Corporation
- Ichiro Mitamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Beam index color television receiver apparatus
- Patent number 4,280,134
- Issue date Jul 21, 1981
- Sony Corporation
- Akira Tooyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Beam index color cathode ray tube
- Patent number 4,223,344
- Issue date Sep 16, 1980
- Sony Corporation
- Takashi Hosono
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Beam index color cathode ray tube
- Patent number 4,212,030
- Issue date Jul 8, 1980
- Sony Corporation
- Akira Tooyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE