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Naoki Endoh
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Fuchu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus of enciphering and deciphering data using keys...
Patent number
7,433,474
Issue date
Oct 7, 2008
Kabushiki Kaisha Toshiba
Takehisa Kato
G11 - INFORMATION STORAGE
Information
Patent Grant
Record medium, record medium manufacturing device, computer readabl...
Patent number
7,233,667
Issue date
Jun 19, 2007
Kabushiki Kaisha Toshiba
Taku Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Cryptographic communication terminal, cryptographic communication c...
Patent number
7,096,357
Issue date
Aug 22, 2006
Kabushiki Kaisha Toshiba
Kouya Tochikubo
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multimedia adaptive scrambling system (MASS)
Patent number
6,888,943
Issue date
May 3, 2005
Verance Corporation
Katherine S. Lam
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital data reproduction device
Patent number
6,751,321
Issue date
Jun 15, 2004
Kabushiki Kaisha Toshiba
Takehisa Kato
G11 - INFORMATION STORAGE
Information
Patent Grant
Broadcast reception device and contract management device using com...
Patent number
6,650,752
Issue date
Nov 18, 2003
Kabushiki Kaisha Toshiba
Koichiro Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast reception device and contract management device using com...
Patent number
6,650,754
Issue date
Nov 18, 2003
Kabushiki Kaisha Toshiba
Koichiro Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Copy-guard system and information recording medium used in the same...
Patent number
6,556,679
Issue date
Apr 29, 2003
Kabushiki Kaisha Toshiba
Takehisa Kato
G11 - INFORMATION STORAGE
Information
Patent Grant
Broadcast reception device and contract management device using com...
Patent number
6,463,155
Issue date
Oct 8, 2002
Kabushiki Kaisha Toshiba
Koichiro Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Copy protection apparatus and information recording medium used in...
Patent number
6,438,692
Issue date
Aug 20, 2002
Kabushiki Kaisha Toshiba
Taku Kato
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus of enciphering and deciphering data using keys...
Patent number
6,347,145
Issue date
Feb 12, 2002
Kabushiki Kaisha Toshiba
Takehisa Kato
G11 - INFORMATION STORAGE
Information
Patent Grant
Copy protection apparatus and information recording medium used in...
Patent number
6,301,663
Issue date
Oct 9, 2001
Kabushiki Kaisha Toshiba
Taku Kato
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret key transfer method which is highly secure and can restrict...
Patent number
6,160,890
Issue date
Dec 12, 2000
Matsushita Electric Industrial Co., Ltd.
Makoto Tatebayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encrypted communication system that limits the damage caused when a...
Patent number
6,151,394
Issue date
Nov 21, 2000
Matsushita Electric Industrial Co., Ltd.
Makoto Tatebayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Information processing system having function of securely protectin...
Patent number
6,085,323
Issue date
Jul 4, 2000
Kabushiki Kaisha Toshiba
Hideo Shimizu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secret key transfer method which is highly secure and can restrict...
Patent number
6,009,174
Issue date
Dec 28, 1999
Matsushita Electric Industrial Co., Ltd.
Makoto Tatebayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of printing bar codes on pieces to deliver, and method and s...
Patent number
5,984,174
Issue date
Nov 16, 1999
Kabushiki Kaisha Toshiba
Takehisa Kato
G07 - CHECKING-DEVICES
Information
Patent Grant
Bar code encoding system using four-state codes
Patent number
5,818,031
Issue date
Oct 6, 1998
Kabushiki Kaisha Toshiba
Naoki Endoh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information recording/reproducing apparatus and method
Patent number
5,819,103
Issue date
Oct 6, 1998
Kabushiki Kaisha Toshiba
Naoki Endoh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Recording/reproducing apparatus for more efficient recording and re...
Patent number
5,253,120
Issue date
Oct 12, 1993
Kabushiki Kaisha Toshiba
Naoki Endoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Image/audio information recording/reproduction apparatus with built...
Patent number
5,170,388
Issue date
Dec 8, 1992
Kabushiki Kaisha Toshiba
Naoki Endoh
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data reproducing apparatus
Patent number
5,101,394
Issue date
Mar 31, 1992
Kabushiki Kaisha Toshiba
Naoki Endoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital data modulation circuit having a DC component suppression f...
Patent number
5,042,037
Issue date
Aug 20, 1991
Kabushiki Kaisha Toshiba
Naoki Endoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for encoding a binary data stream into a binar...
Patent number
4,553,131
Issue date
Nov 12, 1985
Tokyo Shibaura Denki Kabushiki Kaisha
Naoki Endoh
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULT...
Publication number
20080279383
Publication date
Nov 13, 2008
Kabushiki Kaisha Toshiba
Takehisa Kato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Broadcast reception device and contract management device using com...
Publication number
20030002679
Publication date
Jan 2, 2003
Kabushiki Kaisha Toshiba
Koichiro Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Broadcast reception device and contract management device using com...
Publication number
20030002680
Publication date
Jan 2, 2003
Kabushiki Kaisha Toshiba
Koichiro Akiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus of enciphering and deciphering data using keys...
Publication number
20020080972
Publication date
Jun 27, 2002
TAKEHISA KATO
G11 - INFORMATION STORAGE
Information
Patent Application
Recording method, producing method, playback method, apparatus, and...
Publication number
20020025039
Publication date
Feb 28, 2002
Taku Kato
G11 - INFORMATION STORAGE
Information
Patent Application
Copy protection apparatus and information recording medium used in...
Publication number
20020003880
Publication date
Jan 10, 2002
Kabushiki Kaisha Toshiba
Taku Kato
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULT...
Publication number
20010019615
Publication date
Sep 6, 2001
TAKEHISA KATO
G11 - INFORMATION STORAGE