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Takahiro Nagai
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Recording and playback apparatus
Patent number
8,494,344
Issue date
Jul 23, 2013
Panasonic Corporation
Naoya Takao
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Information
Patent Grant
Data processing device and power control method
Patent number
8,347,128
Issue date
Jan 1, 2013
Panasonic Corporation
Yousuke Suzuki
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Information
Patent Grant
Information recording medium, usage management method, and usage ma...
Patent number
8,031,869
Issue date
Oct 4, 2011
Panasonic Corporation
Masaru Yamaoka
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Information
Patent Grant
Address managing method and communication apparatus
Patent number
7,949,762
Issue date
May 24, 2011
Panasonic Corporation
Ayako Takatsuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Authentication communication system, authentication communication a...
Patent number
7,831,831
Issue date
Nov 9, 2010
Panasonic Corporation
Motoji Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Video display apparatus and reproduction apparatus
Patent number
7,810,129
Issue date
Oct 5, 2010
Panasonic Corporation
Masazumi Yamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Recording medium, recording apparatus, reading apparatus, and progr...
Patent number
7,610,626
Issue date
Oct 27, 2009
Panasonic Corporation
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for controlling defect of optical disk, optical disk recordi...
Patent number
7,555,205
Issue date
Jun 30, 2009
Panasonic Corporation
Masaru Yamaoka
G11 - INFORMATION STORAGE
Information
Patent Grant
Encryption device a decrypting device a secret key generation devic...
Patent number
7,542,568
Issue date
Jun 2, 2009
Panasonic Corporation
Motoji Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk and optical method
Patent number
7,339,869
Issue date
Mar 4, 2008
Matsushita Electric Industrial Co., Ltd.
Kenzo Ishibashi
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Information
Patent Grant
Recording/reproducing apparatus, data moving method, and data delet...
Patent number
7,298,844
Issue date
Nov 20, 2007
Matsushita Electric Industrial Co., Ltd.
Hiroshi Sugimoto
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Information
Patent Grant
Optical disc recording method and optical disc reproducing method
Patent number
7,209,422
Issue date
Apr 24, 2007
Matsushita Electric Industrial Co., Ltd.
Takahiro Sato
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Information
Patent Grant
Information recording medium, information recording apparatus and i...
Patent number
7,196,994
Issue date
Mar 27, 2007
Matsushita Electric Industrial Co., Ltd.
Masaru Yamaoka
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc, recording apparatus method, and reproduction apparatu...
Patent number
7,164,644
Issue date
Jan 16, 2007
Matsushita Electric Industrial Co., Ltd.
Takahiro Nagai
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Information
Patent Grant
Information recording medium, recording apparatus, and reproduction...
Patent number
7,136,335
Issue date
Nov 14, 2006
Matsushita Electric Industrial Co., Ltd.
Takashi Yumiba
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Information
Patent Grant
Optical disc, recording apparatus and method, and reproduction appa...
Patent number
7,133,349
Issue date
Nov 7, 2006
Matsushima Electric Industrial Co., Ltd.
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc, recording apparatus and method, and reproduction appa...
Patent number
7,092,342
Issue date
Aug 15, 2006
Matsushita Electric Industrial Co., Ltd.
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
RE39163
Issue date
Jul 11, 2006
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
369 - Dynamic information storage or retrieval
Information
Patent Grant
Optical disk, optical disk recording and reproducing apparatus, met...
Patent number
6,938,162
Issue date
Aug 30, 2005
Matsushita Electric Industrial Co., Ltd.
Takahiro Nagai
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Information
Patent Grant
Recording defect substitution method of a disc-shaped recording med...
Patent number
RE38706
Issue date
Feb 22, 2005
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
369 - Dynamic information storage or retrieval
Information
Patent Grant
Recording apparatus, transmitting apparatus, and computer-readable...
Patent number
6,802,074
Issue date
Oct 5, 2004
Matsushita Electric Industrial Co., Ltd.
Yoshitaka Mitsui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for substituting defective recording of discoid recording me...
Patent number
RE38611
Issue date
Oct 5, 2004
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
369 - Dynamic information storage or retrieval
Information
Patent Grant
Data transfer device and data transfer method
Patent number
6,687,860
Issue date
Feb 3, 2004
Matsushita Electric Industrial Co., Ltd.
Yukio Iijima
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
6,549,499
Issue date
Apr 15, 2003
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
6,496,455
Issue date
Dec 17, 2002
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
6,351,447
Issue date
Feb 26, 2002
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
6,314,078
Issue date
Nov 6, 2001
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method for a disc-shaped recording me...
Patent number
6,301,220
Issue date
Oct 9, 2001
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording defect substitution method of a disc-shaped recording med...
Patent number
6,175,549
Issue date
Jan 16, 2001
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for substituting defective recording of discoid recording me...
Patent number
6,134,214
Issue date
Oct 17, 2000
Matsushita Electric Industrial Co., Ltd.
Yuji Takagi
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
RECORDER
Publication number
20110221913
Publication date
Sep 15, 2011
PANASONIC CORPORATION
Takahiro Nagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECORDING/REPRODUCING DEVICE
Publication number
20100322591
Publication date
Dec 23, 2010
PANASONIC CORPORATION
Naoya Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DATA PROCESSING DEVICE AND POWER CONTROL METHOD
Publication number
20100115318
Publication date
May 6, 2010
PANASONIC CORPORATION
Yousuke Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECORDING AND PLAYBACK APPARATUS
Publication number
20100046918
Publication date
Feb 25, 2010
PANASONIC CORPORATION
Naoya Takao
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RECORDING AND PLAYBACK APPARATUS
Publication number
20100046930
Publication date
Feb 25, 2010
PANASONIC CORPORATION
Naoya TAKAO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DISPLAY DEVICE, EXTERNAL CONNECTION DEVICE, AND SCREEN CONTROL METHOD
Publication number
20090282350
Publication date
Nov 12, 2009
PANASONIC CORPORATION
Akira Kawasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ENCRYPTION DEVICE, A DECRYPTING DEVICE, A SECRET KEY GENERATION DEV...
Publication number
20090208007
Publication date
Aug 20, 2009
Motoji Ohmori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ADDRESS MANAGING METHOD AND COMMUNICATION APPARATUS
Publication number
20090157885
Publication date
Jun 18, 2009
Ayako Takatsuji
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DEVICE CONTROL METHOD USING AN OPERATION SCREEN, AND ELECTRONIC DEV...
Publication number
20090044219
Publication date
Feb 12, 2009
Norifumi Katou
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL DISK, OPTICAL DISK RECORDING AND REPRODUCING APPARATUS, MET...
Publication number
20080310292
Publication date
Dec 18, 2008
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Video Display Apparatus and Reproduction Apparatus
Publication number
20080168504
Publication date
Jul 10, 2008
Masazumi Yamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Moving picture distribution system
Publication number
20060291811
Publication date
Dec 28, 2006
Yousuke Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Multi-medium information sharing system
Publication number
20060200534
Publication date
Sep 7, 2006
Takahiro Nagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical disc, recording apparatus and method, and reproduction appa...
Publication number
20060062115
Publication date
Mar 23, 2006
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc, recording apparatus and method, and reproduction appa...
Publication number
20060039262
Publication date
Feb 23, 2006
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording medium, information recording device and info...
Publication number
20060031868
Publication date
Feb 9, 2006
Matsushita Electric Industrial Co., Ltd.
Masaru Yamaoka
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disk, optical disk recording and reproducing apparatus, met...
Publication number
20050185547
Publication date
Aug 25, 2005
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc, recording apparatus and method, and reproduction appa...
Publication number
20050174915
Publication date
Aug 11, 2005
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Information recording medium, usage management method, and usage ma...
Publication number
20050105728
Publication date
May 19, 2005
Masaru Yamaoka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Encryption device a decrypting device a secret key generation devic...
Publication number
20050021941
Publication date
Jan 27, 2005
Motoji Ohmori
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for controlling defect of optical disk, optical disk recordi...
Publication number
20040258400
Publication date
Dec 23, 2004
Masaru Yamaoka
G11 - INFORMATION STORAGE
Information
Patent Application
Optical discrecording method and optical disc reproducing method
Publication number
20040246866
Publication date
Dec 9, 2004
Takahiro Sato
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc
Publication number
20040196759
Publication date
Oct 7, 2004
Kenzo Ishibashi
G11 - INFORMATION STORAGE
Information
Patent Application
Authentication communication system, authentication communication a...
Publication number
20040003239
Publication date
Jan 1, 2004
Motoji Ohmori
G11 - INFORMATION STORAGE
Information
Patent Application
Recording medium, recording apparatus, reading apparatus, and progr...
Publication number
20030231334
Publication date
Dec 18, 2003
Takahiro Nagai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Information recording medium, recording apparatus, and reproduction...
Publication number
20030189884
Publication date
Oct 9, 2003
Takashi Yumiba
G11 - INFORMATION STORAGE
Information
Patent Application
Recording/reproducing apparatus, data moving method, and data delet...
Publication number
20020150245
Publication date
Oct 17, 2002
Hiroshi Sugimoto
G11 - INFORMATION STORAGE
Information
Patent Application
Encrypted data signal, data storage medium, data signal playback ap...
Publication number
20020015494
Publication date
Feb 7, 2002
Takahiro Nagai
G11 - INFORMATION STORAGE
Information
Patent Application
Recording defect substitution method for a disc-shaped recording me...
Publication number
20020001272
Publication date
Jan 3, 2002
Yuji Takagi
G11 - INFORMATION STORAGE