Minoru Otsuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pickup feeding apparatus for a double-sided reproducing disc player
- Patent number 5,311,497
- Issue date May 10, 1994
- Sony Corporation
- Kazuyuki Takizawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for reproducing selectively loaded discs of different dia...
- Patent number 4,773,057
- Issue date Sep 20, 1988
- Sony Corporation
- Minoru Otsuka
- G11 - INFORMATION STORAGE