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Katsuhiro Koike
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Tsurugashima, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Pickup device
Patent number
8,004,951
Issue date
Aug 23, 2011
Pioneer Corporation
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical element having aberration correction and optical pickup and...
Patent number
7,852,736
Issue date
Dec 14, 2010
Pioneer Corporation
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup, optical element, and information reproducing appara...
Patent number
7,468,942
Issue date
Dec 23, 2008
Pioneer Corporation
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical element, optical pickup, and optical information recording/...
Patent number
7,463,571
Issue date
Dec 9, 2008
Pioneer Corporation
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Grant
Diffractive optical element, objective lens module, optical pickup,...
Patent number
7,227,704
Issue date
Jun 5, 2007
Pioneer Corporation
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical multi-layer information recordating medium
Patent number
6,667,947
Issue date
Dec 23, 2003
Pioneer Corporation
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium
Patent number
6,641,887
Issue date
Nov 4, 2003
Pioneer Corporation
Tetsuya Iida
G11 - INFORMATION STORAGE
Information
Patent Grant
Aspherical objective lens for reading information from optical disk...
Patent number
6,625,103
Issue date
Sep 23, 2003
Pioneer Corporation
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup
Patent number
6,594,091
Issue date
Jul 15, 2003
Pioneer Corporation
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Lens and production method therefor
Patent number
6,529,339
Issue date
Mar 4, 2003
Pioneer Corporation
Takanori Maeda
G02 - OPTICS
Information
Patent Grant
Crystal optic lens and an optical system for an optical pickup device
Patent number
5,867,315
Issue date
Feb 2, 1999
Pioneer Electronic Corporation
Katsuhiro Koike
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
PICKUP DEVICE
Publication number
20090201787
Publication date
Aug 13, 2009
PIONEER CORPORATION
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Application
Diffractive optical element, objective lens module, optical pickup,...
Publication number
20060146422
Publication date
Jul 6, 2006
PIONEER CORPORATION
Katsuhiro Koike
G02 - OPTICS
Information
Patent Application
Optical pickup
Publication number
20050122857
Publication date
Jun 9, 2005
PIONEER CORPORATION
Makoto Sato
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup, optical element, and information reproducing apparatus
Publication number
20040223442
Publication date
Nov 11, 2004
PIONEER CORPORATION
Katsuhiro Koike
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup
Publication number
20020067553
Publication date
Jun 6, 2002
Takanori Maeda
G02 - OPTICS
Information
Patent Application
Optical recording medium
Publication number
20020051859
Publication date
May 2, 2002
PIONEER CORPORATION
Tetsuya Iida
G11 - INFORMATION STORAGE
Information
Patent Application
Objective lens, optical pickup device and optical recording/reprodu...
Publication number
20020039341
Publication date
Apr 4, 2002
Ikuya Kikuchi
G11 - INFORMATION STORAGE
Information
Patent Application
Lens and production method therefor
Publication number
20020030899
Publication date
Mar 14, 2002
Takanori Maeda
G02 - OPTICS
Information
Patent Application
Complex objective lens and method for manufacturing the same and op...
Publication number
20020027863
Publication date
Mar 7, 2002
Ikuya Kikuchi
G02 - OPTICS