Noriyoshi Oyama

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Gunma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric mechanical transducer and optical type pickup apparatus dr...
- Patent number 4,845,699
- Issue date Jul 4, 1989
- Sanyo Electric Co., Ltd.
- Ryoichi Kawasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical type pickup apparatus with lens holder supported by frame w...
- Patent number 4,811,320
- Issue date Mar 7, 1989
- Sanyo Electric Co., Ltd.
- Ryoichi Kawasaki
- G11 - INFORMATION STORAGE