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Nobuo NAKAI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical information recording and reproducing device, optical infor...
Patent number
9,761,263
Issue date
Sep 12, 2017
HITACHI CONSUMER ELECTRONICS CO., LTD.
Hirofumi Taguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device and optical disc apparatus using same
Patent number
8,270,281
Issue date
Sep 18, 2012
Hitachi Media Electronics Co., Ltd.
Toshiteru Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Correcting temperature characteristic of optical pickup of an optic...
Patent number
8,243,566
Issue date
Aug 14, 2012
Hitachi Consumer Electronics Co., Ltd.
Takeyoshi Kataoka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device and optical disk device using the same
Patent number
8,184,509
Issue date
May 22, 2012
Hitachi Media Electronics Co., Ltd.
Toshiteru Nakamura
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS, OPTICAL INFORM...
Publication number
20160085212
Publication date
Mar 24, 2016
Hitachi-LG Data Storage, Inc.
Kouichirou NISHIMURA
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE, OPTICAL INFOR...
Publication number
20150318009
Publication date
Nov 5, 2015
HITACHI CONSUMER ELECTRONICS CO., LTD.
Hirofumi TAGUCHI
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING SAME
Publication number
20110182165
Publication date
Jul 28, 2011
TOSHITERU NAKAMURA
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE USING THE SAME
Publication number
20110051574
Publication date
Mar 3, 2011
TOSHITERU NAKAMURA
G11 - INFORMATION STORAGE
Information
Patent Application
CORRECTING TEMPERATURE CHARACTERISTIC OF OPTICAL PICKUP OF AN OPTIC...
Publication number
20100074068
Publication date
Mar 25, 2010
Takeyoshi KATAOKA
G11 - INFORMATION STORAGE
Information
Patent Application
Laser driving method and optical disc recording/reproducing device
Publication number
20080267045
Publication date
Oct 30, 2008
Junji Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Optical Disc Apparatus and Laser Driving Method
Publication number
20080117729
Publication date
May 22, 2008
Toshio Satoh
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISC DEVICE AND METHOD FOR FOCUS CONTROL
Publication number
20080101169
Publication date
May 1, 2008
KOICHI SUZUKI
G11 - INFORMATION STORAGE