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Kazuhiko FUJIIE
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Short-pulse light source, laser light emission method, optical devi...
Patent number
8,149,661
Issue date
Apr 3, 2012
Sony Corporation
Tsutomu Ishimoto
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Short-pulse light-source device, laser driving method, optical pick...
Patent number
8,072,871
Issue date
Dec 6, 2011
Sony Corporation
Kazuhiko Fujiie
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Signal detecting device and signal detecting method
Patent number
7,940,606
Issue date
May 10, 2011
Sony Corporation
Ariyoshi Nakaoki
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical recording, producing apparatus, and method with peak-hold v...
Patent number
7,656,753
Issue date
Feb 2, 2010
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and disc cartridge
Patent number
7,454,771
Issue date
Nov 18, 2008
Sony Corporation
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for manufacturing magneto-optical recording medium
Patent number
7,423,939
Issue date
Sep 9, 2008
Sony Corporation
Takeshi Miki
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and disc cartridge
Patent number
7,305,689
Issue date
Dec 4, 2007
Sony Corporation
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical recording, producing apparatus, and method with peak-hold v...
Patent number
7,190,641
Issue date
Mar 13, 2007
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium and signal reproduction method
Patent number
7,060,373
Issue date
Jun 13, 2006
Sony Corporation
Tetsuhiro Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for reproducing information data from a magneto-optical stor...
Patent number
6,944,100
Issue date
Sep 13, 2005
Sony Corporation
Tetsuhiro Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Read-only optical recording medium and disc cartridge
Patent number
6,785,222
Issue date
Aug 31, 2004
Sony Corporation
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical recording medium and disc cartridge
Patent number
6,747,943
Issue date
Jun 8, 2004
Sony Corporation
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnetic head device and recording/reproducing apparatus using the...
Patent number
6,741,526
Issue date
May 25, 2004
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and disc cartridge having 2 GB capacity
Patent number
6,704,275
Issue date
Mar 9, 2004
Sony Corporation
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical pickup with a hologram to limit the aperture of two light b...
Patent number
6,392,977
Issue date
May 21, 2002
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Reproducing apparatus, recording apparatus, and recording medium
Patent number
6,288,990
Issue date
Sep 11, 2001
Sony Corporation
Kazuhiko Fujiie
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Recording/reproducing apparatus for compressed data
Patent number
6,205,104
Issue date
Mar 20, 2001
Sony Corporation
Hideki Nagashima
G11 - INFORMATION STORAGE
Information
Patent Grant
Photo detector circuit having a current mirror circuit
Patent number
5,981,936
Issue date
Nov 9, 1999
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording and/or reproducing method and apparatus with dubbing mode
Patent number
5,963,521
Issue date
Oct 5, 1999
Sony Corporation
Hideki Nagashima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc with magnetic member in a recessed portion thereof and...
Patent number
5,859,834
Issue date
Jan 12, 1999
Sony Corporation
Kenji Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Defect detecting circuit and reproducing apparatus having the defec...
Patent number
5,818,804
Issue date
Oct 6, 1998
Sony Corporation
Hideo Obata
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical disc having preformatted information to prevent una...
Patent number
5,650,991
Issue date
Jul 22, 1997
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing apparatus for both read-only and magneto-opti...
Patent number
5,559,769
Issue date
Sep 24, 1996
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording medium and a method and apparatus for recording and repro...
Patent number
5,528,569
Issue date
Jun 18, 1996
Sony Corporation
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording/reproducing apparatus with optical pickup...
Patent number
5,523,994
Issue date
Jun 4, 1996
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head including multiple photo detectors for reading signals...
Patent number
5,479,387
Issue date
Dec 26, 1995
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording/reproducing apparatus with optical pickup...
Patent number
5,467,336
Issue date
Nov 14, 1995
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Photodetector for recording/reproducing apparatus for both read onl...
Patent number
5,453,607
Issue date
Sep 26, 1995
Sony Corporation
Nobuhiko Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Circuit for varying a loop gain of a spindle servo
Patent number
5,432,766
Issue date
Jul 11, 1995
Sony Corporation
Ryo Ando
G11 - INFORMATION STORAGE
Information
Patent Grant
Electromagnetic shield device for magneto-optical recording apparatus
Patent number
5,402,397
Issue date
Mar 28, 1995
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL RECORDING MEDIUM, RECORDING APPARATUS, RECORDING METHOD
Publication number
20130070577
Publication date
Mar 21, 2013
SONY CORPORATION
Yoshinori Suzuki
G11 - INFORMATION STORAGE
Information
Patent Application
OBJECTIVE LENS, LENS MANUFACTURING METHOD, AND OPTICAL DRIVE APPARATUS
Publication number
20120051206
Publication date
Mar 1, 2012
SONY CORPORATION
Kazuhiko Fujiie
G02 - OPTICS
Information
Patent Application
SHORT-PULSE LIGHT SOURCE, LASER LIGHT EMISSION METHOD, OPTICAL DEVI...
Publication number
20110019513
Publication date
Jan 27, 2011
SONY CORPORATION
Tsutomu Ishimoto
G11 - INFORMATION STORAGE
Information
Patent Application
SHORT-PULSE SOURCE DEVICE, LASER DRIVING METHOD, OPTICAL PICKUP, AN...
Publication number
20100254249
Publication date
Oct 7, 2010
SONY CORPORATION
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Application
SIGNAL DETECTING DEVICE AND SIGNAL DETECTING METHOD
Publication number
20090310446
Publication date
Dec 17, 2009
SONY CORPORATION
Ariyoshi Nakaoki
G11 - INFORMATION STORAGE
Information
Patent Application
Method for manufacturing magneto-optical recording medium
Publication number
20080199602
Publication date
Aug 21, 2008
Sony Corporation
Takeshi Miki
G11 - INFORMATION STORAGE
Information
Patent Application
OPTICAL RECORDING MEDIUM AND DISC CARTRIDGE
Publication number
20080098416
Publication date
Apr 24, 2008
SONY CORPORATION
Naohiro NETSU
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
OPTICAL RECORDING, PRODUCING APPARATUS, AND METHOD WITH PEAK-HOLD V...
Publication number
20070147452
Publication date
Jun 28, 2007
SONY CORPORATION
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Application
Method for thermal treatment judgment on magneto-optical informatio...
Publication number
20070008832
Publication date
Jan 11, 2007
Yasuhito Tanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Annealing device and annealing method
Publication number
20050201211
Publication date
Sep 15, 2005
SONY CORPORATION
Goro Fujita
G11 - INFORMATION STORAGE
Information
Patent Application
Control method and control device for laser power of semiconductor...
Publication number
20050117615
Publication date
Jun 2, 2005
SONY CORPORATION
Kazuhiko Fujiie
G11 - INFORMATION STORAGE
Information
Patent Application
Playback apparatus and method, and optical disk player
Publication number
20050099908
Publication date
May 12, 2005
SONY CORPORATION
Goro Fujita
G11 - INFORMATION STORAGE
Information
Patent Application
Record/playback apparatus and record/playback method
Publication number
20050041537
Publication date
Feb 24, 2005
SONY CORPORATION
Yasuhito Tanaka
G11 - INFORMATION STORAGE
Information
Patent Application
Magneto-optical recording medium and signal reproduction method
Publication number
20040244027
Publication date
Dec 2, 2004
Tetsuhiro Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Application
Method for manufacturing magneto-optical recording medium
Publication number
20040229085
Publication date
Nov 18, 2004
Takeshi Miki
G11 - INFORMATION STORAGE
Information
Patent Application
Optical recording medium and disc cartridge
Publication number
20040228263
Publication date
Nov 18, 2004
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Magneto-optical recording/reproducing method, disc recording medium...
Publication number
20030214886
Publication date
Nov 20, 2003
SONY CORPORATION
Tetsuhiro Sakamoto
G11 - INFORMATION STORAGE
Information
Patent Application
Optical recording medium and disc cartridge
Publication number
20020071383
Publication date
Jun 13, 2002
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Optical recording medium and disc cartridge
Publication number
20020071382
Publication date
Jun 13, 2002
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
DATA TRANSMITTING APPARATUS
Publication number
20020063933
Publication date
May 30, 2002
YASUAKI MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical recording medium and disc cartridge
Publication number
20020060981
Publication date
May 23, 2002
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Optical recording medium and disc cartridge
Publication number
20020054566
Publication date
May 9, 2002
Naohiro Netsu
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
DATA TRANSMITTING APPARATUS AND DATA TRANSMITTING METHOD
Publication number
20020044654
Publication date
Apr 18, 2002
YASUAKI MAEDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AN OPTICAL PICKUP WITH A HOLOGRAM TO LIMIT THE APERTURE OF TWO LIGH...
Publication number
20010043548
Publication date
Nov 22, 2001
NOBUHIKO ANDO
G11 - INFORMATION STORAGE