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Tatsushi Arai
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Gunma, JP
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last 30 patents
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Patent Grant
Optical disc apparatus and method of setting defocus value thereof
Patent number
7,663,988
Issue date
Feb 16, 2010
Sanyo Electric Co., LTD
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
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last 30 patents
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Patent Application
OPTICAL DISC APPARATUS AND METHOD OF SETTING DEFOCUS VALUE THEREOF
Publication number
20080037123
Publication date
Feb 14, 2008
Sanyo Electric Co., Ltd.
Yasuhiro Muraoka
G11 - INFORMATION STORAGE