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Yasuhiro Muraoka
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Gunma, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Disc apparatus
Patent number
8,363,527
Issue date
Jan 29, 2013
Sanyo Electric Co., LTD
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
Patent Grant
Use of a photoelectric converted signal to inspect an objective len...
Patent number
8,053,712
Issue date
Nov 8, 2011
Sanyo Electric Co., LTD
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
Patent Grant
Disc apparatus
Patent number
7,969,847
Issue date
Jun 28, 2011
Sanyo Electric Co., LTD
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
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
Patents Applications
last 30 patents
Information
Patent Application
DISC APPARATUS
Publication number
20110235483
Publication date
Sep 29, 2011
Sanyo Electric Co., Ltd.
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
Patent Application
INSPECTING METHOD FOR OBJECTIVE LENS DRIVING DEVICE AND INSPECTING...
Publication number
20090206239
Publication date
Aug 20, 2009
Sanyo Electric Co., Ltd.
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
Patent Application
DISC APPARATUS
Publication number
20080175115
Publication date
Jul 24, 2008
SANYO ELECTRONIC CO., LTD.
Yasuhiro Muraoka
G11 - INFORMATION STORAGE
Information
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