Takashi Toyama

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Kokubunji, JP

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Patents Grantslast 30 patents

Information Patent Grant
Beam index type color cathode ray tube
- Patent number 4,908,547
- Issue date Mar 13, 1990
- Sony Corporation
- Takashi Toyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video projector type television receiver
- Patent number 4,646,143
- Issue date Feb 24, 1987
- Sony Corporation
- Toshiro Watanabe
- G02 - OPTICS
Information Patent Grant
Color projector apparatus of single cathode ray tube type
- Patent number 4,533,850
- Issue date Aug 6, 1985
- Sony Corporation
- Akio Ohkoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color television receiver
- Patent number 4,232,332
- Issue date Nov 4, 1980
- Sony Corporation
- Akira Toyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE