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Mitsuru Harai
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical disk apparatus and test writing method
Patent number
8,004,941
Issue date
Aug 23, 2011
Hitachi Ltd.
Koichiro Nishimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for adjusting a focus position on an optical disc and an opt...
Patent number
7,944,787
Issue date
May 17, 2011
Hitachi-LG Data Storage, Inc.
Tomoya Hoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc apparatus and information recording and reproducing me...
Patent number
7,626,903
Issue date
Dec 1, 2009
Hitachi-LG Data Storage, Inc.
Nobuhiro Takeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc apparatus and access control method of the same
Patent number
7,616,533
Issue date
Nov 10, 2009
Hitachi-LG Data Storage, Inc.
Mitsuru Harai
G11 - INFORMATION STORAGE
Information
Patent Grant
Focus servo recovery processing method for optical disc device and...
Patent number
7,570,550
Issue date
Aug 4, 2009
Hitachi-LG Data Storage, Inc.
Mitsuru Harai
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Method for adjusting a focus position on an optical disc and an opt...
Publication number
20090059755
Publication date
Mar 5, 2009
Hitachi-LG Data Storage, Inc.
Tomoya Hoshi
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISC APPARATUS AND INFORMATION RECORDING/REPRODUCING METHOD...
Publication number
20080008057
Publication date
Jan 10, 2008
Nobuhiro Takeda
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disk apparatus and test writing method
Publication number
20070183284
Publication date
Aug 9, 2007
Koichiro Nishimura
G11 - INFORMATION STORAGE
Information
Patent Application
Focus servo recovery processing method for optical disc device and...
Publication number
20070133363
Publication date
Jun 14, 2007
Mitsuru Harai
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disk recording/reproducing apparatus and seek control metho...
Publication number
20070121441
Publication date
May 31, 2007
Takeyoshi Kataoka
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc apparatus and information recording and reproducing me...
Publication number
20070121444
Publication date
May 31, 2007
Nobuhiro Takeda
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information reproducing method
Publication number
20070121445
Publication date
May 31, 2007
Koichiro Nishimura
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc apparatus and access control method of the same
Publication number
20070104052
Publication date
May 10, 2007
Hitachi-LG Data Storage, Inc.
Mitsuru Harai
G11 - INFORMATION STORAGE