KOICHI HIRAYAMA

Person

YOKOHAMA-SHI, JP

People

Patents Grantslast 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
Information recording medium on which sector data generated from EC...
- Patent number 7,406,635
- Issue date Jul 29, 2008
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium on which sector data generated from EC...
- Patent number 7,404,111
- Issue date Jul 22, 2008
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium on which sector data generated from EC...
- Patent number 7,401,268
- Issue date Jul 15, 2008
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Reproduction signal evaluation method
- Patent number 7,394,740
- Issue date Jul 1, 2008
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital data transmitting method
- Patent number RE40312
- Issue date May 13, 2008
- Pioneer Electronic Corporation
- Tadashi Kojima
- 375 - Pulse or digital communications
Information Patent Grant
Reproduction signal evaluation method
- Patent number 7,327,657
- Issue date Feb 5, 2008
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- 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
Information recording medium on which sector data generated from EC...
- Patent number 7,134,055
- Issue date Nov 7, 2006
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Reproduction signal evaluation method
- Patent number 7,106,677
- Issue date Sep 12, 2006
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording medium on which sector data generated from EC...
- Patent number 7,003,711
- Issue date Feb 21, 2006
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for estimating the quality of an information recording mediu...
- Patent number 6,847,600
- Issue date Jan 25, 2005
- Kabushiki Kaisha Toshiba
- Yutaka Kashihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Reproduction signal evaluation method
- Patent number 6,785,210
- Issue date Aug 31, 2004
- Kabushiki Kaisha Toshiba
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording and reproducing apparatus and information rec...
- Patent number 6,704,259
- Issue date Mar 9, 2004
- Kabushiki Kaisha Toshiba
- Yutaka Kashihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Information storage medium, information recording method, and infor...
- Patent number 6,671,243
- Issue date Dec 30, 2003
- Kabushiki Kaisha Toshiba
- Hideo Ando
- G11 - INFORMATION STORAGE
Information Patent Grant
Data transmission system, data recording and reproducing apparatus...
- Patent number 6,397,366
- Issue date May 28, 2002
- Matsushita Electric Industrial Co., Ltd.
- Shin-ichi Tanaka
- G11 - INFORMATION STORAGE
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
Apparatus for generating, recording and transmitting an error produ...
- Patent number 6,182,263
- Issue date Jan 30, 2001
- Kabushiki Kaisha Toshiba
- Tadashi Kojima
- G11 - INFORMATION STORAGE
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
Multilingual recording medium and reproduction apparatus
- Patent number 6,128,434
- Issue date Oct 3, 2000
- Kabushiki Kaisha Toshiba
- Koichi Hirayama
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
One-way data conversion apparatus and device authentication system
- Patent number 6,049,611
- Issue date Apr 11, 2000
- Matsushita Electric Industrial Co., Ltd.
- Makoto Tatebayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device authentication system which allows the authentication functi...
- Patent number 6,034,618
- Issue date Mar 7, 2000
- Matsushita Electric Industrial Co., Ltd.
- Makoto Tatebayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multilingual recording medium and reproduction apparatus
- Patent number 6,028,979
- Issue date Feb 22, 2000
- Kabushiki Kaisha Toshiba
- Koichi Hirayama
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
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
Multilingual recording medium and reproduction apparatus
- Patent number 5,999,695
- Issue date Dec 7, 1999
- Kabushiki Kaisha Toshiba
- Koichi Hirayama
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Digital data transmitting method
- Patent number 5,987,066
- Issue date Nov 16, 1999
- Kabushiki Kaisha Toshiba
- Tadashi Kojima
- G11 - INFORMATION STORAGE
Information Patent Grant
Data transmission system, data recording and reproducing apparatus...
- Patent number 5,978,958
- Issue date Nov 2, 1999
- Matsushita Electric Industrial Co., Ltd.
- Shin-ichi Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-scene recording medium and apparatus for reproducing data the...
- Patent number 5,956,457
- Issue date Sep 21, 1999
- Kabushiki Kaisha Toshiba
- Koichi Hirayama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Digital modulation apparatus, a digital modulation method, and a re...
- Patent number 5,917,857
- Issue date Jun 29, 1999
- Matsushita Electric Industrial Co., Ltd.
- Shin-ichi Tanaka
- G11 - INFORMATION STORAGE

Patents Applicationslast 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
Information recording medium on which sector data generated from EC...
- Publication number 20070011572
- Publication date Jan 11, 2007
- Chosaku Noda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Information recording medium on which sector data generated from EC...
- Publication number 20070011580
- Publication date Jan 11, 2007
- Chosaku Noda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reproduction signal evaluation method
- Publication number 20060262689
- Publication date Nov 23, 2006
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Application
Reproduction signal evaluation method
- Publication number 20060262688
- Publication date Nov 23, 2006
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium on which sector data generated from EC...
- Publication number 20060218466
- Publication date Sep 28, 2006
- Chosaku Noda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Information recording medium on which sector data generated from EC...
- Publication number 20060010364
- Publication date Jan 12, 2006
- Chosaku Noda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Reproduction signal evaluation method
- Publication number 20040257956
- Publication date Dec 23, 2004
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording medium on which sector data generated from EC...
- Publication number 20020159368
- Publication date Oct 31, 2002
- Chosaku Noda
- G11 - INFORMATION STORAGE
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
Information recording and reproducing apparatus and information rec...
- Publication number 20020036960
- Publication date Mar 28, 2002
- Yutaka Kashihara
- G11 - INFORMATION STORAGE
Information Patent Application
Reproduction signal evaluation method
- Publication number 20010055169
- Publication date Dec 27, 2001
- Chosaku Noda
- G11 - INFORMATION STORAGE
Information Patent Application
Method for estimating the quality of an information recording medium
- Publication number 20010043537
- Publication date Nov 22, 2001
- Yutaka Kashihara
- G11 - INFORMATION STORAGE
Information Patent Application
Information storage medium, information recording method, and infor...
- Publication number 20010033517
- Publication date Oct 25, 2001
- Hideo Ando
- G11 - INFORMATION STORAGE
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

KOICHI HIRAYAMA

Person

Patents Grantslast 30 patents

Method and apparatus of enciphering and deciphering data using keys...

Information recording medium on which sector data generated from EC...

Information recording medium on which sector data generated from EC...

Information recording medium on which sector data generated from EC...

Reproduction signal evaluation method

Digital data transmitting method

Reproduction signal evaluation method

Record medium, record medium manufacturing device, computer readabl...

Information recording medium on which sector data generated from EC...

Reproduction signal evaluation method

Information recording medium on which sector data generated from EC...

Method for estimating the quality of an information recording mediu...

Reproduction signal evaluation method

Information recording and reproducing apparatus and information rec...

Information storage medium, information recording method, and infor...

Data transmission system, data recording and reproducing apparatus...

Method and apparatus of enciphering and deciphering data using keys...

Apparatus for generating, recording and transmitting an error produ...

Secret key transfer method which is highly secure and can restrict...

Encrypted communication system that limits the damage caused when a...

Multilingual recording medium and reproduction apparatus

One-way data conversion apparatus and device authentication system

Device authentication system which allows the authentication functi...

Multilingual recording medium and reproduction apparatus

Secret key transfer method which is highly secure and can restrict...

Multilingual recording medium and reproduction apparatus

Digital data transmitting method

Data transmission system, data recording and reproducing apparatus...

Multi-scene recording medium and apparatus for reproducing data the...

Digital modulation apparatus, a digital modulation method, and a re...

Patents Applicationslast 30 patents

METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULT...

Information recording medium on which sector data generated from EC...

Information recording medium on which sector data generated from EC...

Reproduction signal evaluation method

Reproduction signal evaluation method

Information recording medium on which sector data generated from EC...

Information recording medium on which sector data generated from EC...

Reproduction signal evaluation method

Information recording medium on which sector data generated from EC...

Method and apparatus of enciphering and deciphering data using keys...

Information recording and reproducing apparatus and information rec...

Reproduction signal evaluation method

Method for estimating the quality of an information recording medium

Information storage medium, information recording method, and infor...

METHOD AND APPARATUS OF ENCIPHERING AND DECIPHERING DATA USING MULT...