Yoshihito Yamamoto

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Recording in a single track visual signals associated with audio si...
- Patent number 4,445,150
- Issue date Apr 24, 1984
- Sony Corporation
- Heitaro Nakajima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Mixing apparatus
- Patent number 4,275,268
- Issue date Jun 23, 1981
- Sony Corporation
- Hiroshi Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE