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YOSHITSUGU ARAKI
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SAITAMA-KEN, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Information recording medium, information reproducing apparatus, in...
Patent number
7,307,942
Issue date
Dec 11, 2007
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc player with focus pull-in function
Patent number
7,242,645
Issue date
Jul 10, 2007
Pioneer Corporation
Kazuo Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device driven by an error signal obtained from an op...
Patent number
7,116,612
Issue date
Oct 3, 2006
Pioneer Corporation
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Grant
Information recording apparatus
Patent number
6,970,409
Issue date
Nov 29, 2005
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup apparatus and tilt amount detecting method
Patent number
6,865,144
Issue date
Mar 8, 2005
Pioneer Corporation
Takuma Yanagisawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Multilayer optical recording medium and recording method and appara...
Patent number
6,850,474
Issue date
Feb 1, 2005
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Information recording and reproducing apparatus
Patent number
6,839,313
Issue date
Jan 4, 2005
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Aberration correction apparatus and method
Patent number
6,690,500
Issue date
Feb 10, 2004
Pioneer Corporation
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Grant
Objective lens collision preventing device and method for manufactu...
Patent number
6,683,732
Issue date
Jan 27, 2004
Pioneer Corporation
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Aberration correcting element and assembly
Patent number
6,678,232
Issue date
Jan 13, 2004
Pioneer Corporation
Masakazu Ogasawara
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
Cartridge and method of cleaning recordation medium surface
Patent number
6,618,351
Issue date
Sep 9, 2003
Pioneer Corporation
Kazuo Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup system
Patent number
6,584,057
Issue date
Jun 24, 2003
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Polarization hologram lens, optical pickup, information reproductio...
Patent number
6,518,555
Issue date
Feb 11, 2003
Pioneer Electronic Corporation
Ikuya Kikuchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup
Patent number
6,442,125
Issue date
Aug 27, 2002
Pioneer Electronic Corporation
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup and optical disk drive for use with a high-density o...
Patent number
6,370,092
Issue date
Apr 9, 2002
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
System for producing a liquid crystal driving signal
Patent number
6,198,465
Issue date
Mar 6, 2001
Pioneer Electronic Corporation
Junichi Furukawa
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Optical pickup, aberration correction unit and astigmatism measurem...
Patent number
6,151,154
Issue date
Nov 21, 2000
Pioneer Electronic Corporation
Masakazu Ogasawara
G02 - OPTICS
Information
Patent Grant
Recorded information reproduction method and recorded information r...
Patent number
6,147,951
Issue date
Nov 14, 2000
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for high speed reproduction of information rec...
Patent number
6,125,086
Issue date
Sep 26, 2000
Pioneer Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Rapid data reproduction method and apparatus for optical disk
Patent number
5,953,292
Issue date
Sep 14, 1999
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Tilt servo system
Patent number
5,914,923
Issue date
Jun 22, 1999
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup apparatus having crosstalk balance and tilt correction
Patent number
5,909,413
Issue date
Jun 1, 1999
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium discriminating apparatus
Patent number
5,684,771
Issue date
Nov 4, 1997
Pioneer Electronic Corporation
Junichi Furukawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Three-dimensional coordinates input apparatus
Patent number
5,512,919
Issue date
Apr 30, 1996
Pioneer Electronic Corporation
Yoshitsugu Araki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical pickup having flexible wiring plate with focusing effective...
Patent number
5,287,337
Issue date
Feb 15, 1994
Pioneer Electronic Corporatioin
Taichi Akiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Supporting device of an optical pickup
Patent number
5,146,441
Issue date
Sep 8, 1992
Pioneer Electronic Corporation
Taichi Akiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc reading apparatus
Patent number
4,831,612
Issue date
May 16, 1989
Pioneer Electronic Corporation
Toshihiko Kurihara
G11 - INFORMATION STORAGE
Information
Patent Grant
Pickup unit for use in an optical information record/reproduce system
Patent number
4,727,529
Issue date
Feb 23, 1988
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical data reading device
Patent number
4,637,004
Issue date
Jan 13, 1987
Pioneer Electronic Corporation
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Information recording medium, information reproducing apparatus, in...
Publication number
20030198172
Publication date
Oct 23, 2003
PIONEER CORPORATION
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Application
Mold for molding the substrate of an optical disk
Publication number
20030194464
Publication date
Oct 16, 2003
Pioneer Electronic Corporation
Tetsuya Iida
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Optical disk, copy preventive method, and recordable optical disk
Publication number
20030086360
Publication date
May 8, 2003
PIONEER CORPORATION
Toshio Suzuki
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc player with focus pull-in function
Publication number
20030067850
Publication date
Apr 10, 2003
PIONEER CORPORATION
Kazuo Takahashi
G11 - INFORMATION STORAGE
Information
Patent Application
Driving apparatus and driving method for actuator, and information...
Publication number
20030053381
Publication date
Mar 20, 2003
PIONEER CORPORATION
Kazuo Takahashi
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording and reproducing apparatus
Publication number
20020110053
Publication date
Aug 15, 2002
PIONEER CORPORATION
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording apparatus
Publication number
20020110068
Publication date
Aug 15, 2002
PIONEER CORPORATION
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Application
Objective lens collision preventing device and method for manufactu...
Publication number
20020105736
Publication date
Aug 8, 2002
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Application
Aberration correcting element and assembly
Publication number
20020105889
Publication date
Aug 8, 2002
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup device
Publication number
20020101802
Publication date
Aug 1, 2002
PIONEER CORPORATION
Masakazu Ogasawara
G11 - INFORMATION STORAGE
Information
Patent Application
Cartridge and method of cleaning recordation medium surface
Publication number
20020085474
Publication date
Jul 4, 2002
Kazuo Takahashi
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL DISC AND MOLD FOR MANUFACTURING THE OPTICAL DISC
Publication number
20020067688
Publication date
Jun 6, 2002
TETSUYA IIDA
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Optical multi-layer information recordating medium
Publication number
20020067666
Publication date
Jun 6, 2002
PIONEER CORPORATION
Takanori Maeda
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup apparatus and tilt amount detecting method
Publication number
20020048243
Publication date
Apr 25, 2002
Takuma Yanagisawa
G11 - INFORMATION STORAGE
Information
Patent Application
Multilayer optical recording medium and recording method and appara...
Publication number
20020031075
Publication date
Mar 14, 2002
PIONEER CORPORATION
Yoshitsugu Araki
G11 - INFORMATION STORAGE
Information
Patent Application
Aberration correction apparatus and method
Publication number
20020024688
Publication date
Feb 28, 2002
Masakazu Ogasawara
G02 - OPTICS