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Tadayasu Nishikawa
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Ibaraki, JP
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Patents Grants
last 30 patents
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Patent Grant
Objective lens driving device and optical pickup device employing t...
Patent number
7,073,185
Issue date
Jul 4, 2006
Sony Corporation
Yutaka Shimada
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Objective lens drive device, and optical pickup device using object...
Publication number
20030161251
Publication date
Aug 28, 2003
Yutaka Shimada
G11 - INFORMATION STORAGE