Kazuo Takaragi

Person

Ebina-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Digital signing method
- Patent number 7,770,009
- Issue date Aug 3, 2010
- Hitachi, Ltd.
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and a device for sterilizing downloaded files
- Patent number 7,711,714
- Issue date May 4, 2010
- Hitachi, Ltd.
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for recovering the validity of cryptographically...
- Patent number 7,694,126
- Issue date Apr 6, 2010
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of mounting electronic circuit chip
- Patent number 7,549,208
- Issue date Jun 23, 2009
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Unique code generating apparatus, method, program and recording medium
- Patent number 7,447,339
- Issue date Nov 4, 2008
- Hitachi, Ltd.
- Masahiro Mimura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for symmetric-key decryption
- Patent number 7,359,515
- Issue date Apr 15, 2008
- Hitachi, Ltd.
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Database integration management method and apparatus and processing...
- Patent number 7,333,972
- Issue date Feb 19, 2008
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Terminal for use in a system interfacing with storage media
- Patent number 7,330,949
- Issue date Feb 12, 2008
- Hitachi, Ltd.
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of checking authenticity of sheet with built-in electronic c...
- Patent number 7,309,019
- Issue date Dec 18, 2007
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital signing method
- Patent number 7,305,558
- Issue date Dec 4, 2007
- Hitachi, Ltd.
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor devices and manufacturing method therefor
- Patent number 7,298,029
- Issue date Nov 20, 2007
- Hitachi, Ltd.
- Mitsuo Usami
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Pseudorandom number generating apparatus or encryption or decryptio...
- Patent number 7,280,659
- Issue date Oct 9, 2007
- Hitachi, Ltd.
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Pseudorandom number generating apparatus or encryption or decryptio...
- Patent number 7,224,796
- Issue date May 29, 2007
- Hitachi, Ltd.
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Trusted computer system
- Patent number 7,210,043
- Issue date Apr 24, 2007
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for symmetric-key decryption
- Patent number 7,200,232
- Issue date Apr 3, 2007
- Hitachi, Ltd.
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time stamp generating system
- Patent number 7,200,682
- Issue date Apr 3, 2007
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Identification code management method and management system
- Patent number 7,178,026
- Issue date Feb 13, 2007
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
RFID tag, and RFID tag-related determining device and method, and m...
- Patent number 7,173,515
- Issue date Feb 6, 2007
- Hitachi, Ltd.
- Masaru Ohki
- G07 - CHECKING-DEVICES
Information Patent Grant
Handling support method and handling support system
- Patent number 7,138,915
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Hajime Morito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and a device for managing a computer network
- Patent number 7,139,759
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Kazuo Takaragi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for recovering the validity of cryptographically...
- Patent number 7,134,021
- Issue date Nov 7, 2006
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for symmetric-key encryption
- Patent number 7,110,545
- Issue date Sep 19, 2006
- Tokyo, Japan
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal for use in a system interfacing with storage media
- Patent number 7,089,388
- Issue date Aug 8, 2006
- Hitachi, Ltd.
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Semiconductor devices
- Patent number 7,061,083
- Issue date Jun 13, 2006
- Hitachi, Ltd.
- Mitsuo Usami
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Grant
Method of checking authenticity of sheet with built-in electronic c...
- Patent number 7,007,854
- Issue date Mar 7, 2006
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Identification code management method and management system
- Patent number 6,934,842
- Issue date Aug 23, 2005
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Database integration management method and apparatus and processing...
- Patent number 6,922,686
- Issue date Jul 26, 2005
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Processing apparatus, program, or system of secret information
- Patent number 6,873,706
- Issue date Mar 29, 2005
- Hitachi, Ltd.
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital signature generating method and digital signature verifying...
- Patent number 6,816,969
- Issue date Nov 9, 2004
- Hitachi, Ltd.
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for mounting electronic circuit chip
- Patent number 6,731,509
- Issue date May 4, 2004
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Digital signing method
- Publication number 20080098232
- Publication date Apr 24, 2008
- Hitachi, Ltd
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEMICONDUCTOR DEVICES AND MANUFACTURING METHOD THEREFOR
- Publication number 20080054427
- Publication date Mar 6, 2008
- Mitsuo Usami
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Method and apparatus for symmetric-key decryption
- Publication number 20070064944
- Publication date Mar 22, 2007
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and a device for managing a computer network
- Publication number 20070011174
- Publication date Jan 11, 2007
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Terminal for use in a system interfacing with storage media
- Publication number 20060253664
- Publication date Nov 9, 2006
- Hitachi, Ltd
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
TERMINAL FOR USE IN A SYSTEM INTERFACING WITH STORAGE MEDIA
- Publication number 20060195664
- Publication date Aug 31, 2006
- Hitachi, Ltd
- Kazuo Takaragi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of checking authenticity of sheet with built-in electronic c...
- Publication number 20060108412
- Publication date May 25, 2006
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system for recovering the validity of cryptographically...
- Publication number 20060059357
- Publication date Mar 16, 2006
- Hitachi, Ltd
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Database integration management method and apparatus and processing...
- Publication number 20060004800
- Publication date Jan 5, 2006
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Identification code management method and management system
- Publication number 20050251678
- Publication date Nov 10, 2005
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Semiconductor devices and manufacturing method therefor
- Publication number 20050194591
- Publication date Sep 8, 2005
- Mitsuo Usami
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
Information Patent Application
Digital data authentication method
- Publication number 20050182939
- Publication date Aug 18, 2005
- Hiroshi Yoshiura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Unique code generating apparatus, method, program and recording medium
- Publication number 20050135661
- Publication date Jun 23, 2005
- Masahiro Mimura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of mounting electronic circuit chip
- Publication number 20040156176
- Publication date Aug 12, 2004
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of checking authenticity of sheet with built-in electronic c...
- Publication number 20040060978
- Publication date Apr 1, 2004
- Hitachi, Ltd.
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Time stamp generating system
- Publication number 20030212828
- Publication date Nov 13, 2003
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RFID tag, and RFID tag-related determining device and method, and m...
- Publication number 20030169149
- Publication date Sep 11, 2003
- Masaru Ohki
- G07 - CHECKING-DEVICES
Information Patent Application
Handling support method and handling support system
- Publication number 20030105853
- Publication date Jun 5, 2003
- Hajime Morito
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Encrypting conversion apparatus, decrypting conversion apparatus, c...
- Publication number 20030026430
- Publication date Feb 6, 2003
- Makoto Aikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IC card equipped with elliptic curve encryption processing facility
- Publication number 20030021410
- Publication date Jan 30, 2003
- Hitachi, Ltd.
- Seiji Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Trusted computer system
- Publication number 20020174369
- Publication date Nov 21, 2002
- Hitachi, Ltd
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pseudorandom number generating apparatus or encryption or decryptio...
- Publication number 20020118830
- Publication date Aug 29, 2002
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital signature generating method and digital signature verifying...
- Publication number 20020108044
- Publication date Aug 8, 2002
- Kunihiko Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Pseudorandom number generating apparatus or encryption or decryptio...
- Publication number 20020097868
- Publication date Jul 25, 2002
- Dai Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital data authentication method
- Publication number 20020095579
- Publication date Jul 18, 2002
- Hiroshi Yoshiura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Database integration management method and apparatus and processing...
- Publication number 20020052877
- Publication date May 2, 2002
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and system for recovering the validity of cryptographically...
- Publication number 20020023221
- Publication date Feb 21, 2002
- Kunihiko Miyazaki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and a device for managing a computer network
- Publication number 20020016928
- Publication date Feb 7, 2002
- Kazuo Takaragi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Identification code management method and management system
- Publication number 20020004767
- Publication date Jan 10, 2002
- Chikashi Okamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and apparatus for symmetric-key encryption
- Publication number 20010021253
- Publication date Sep 13, 2001
- Soichi Furuya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kazuo Takaragi

Person

Patents Grantslast 30 patents

Digital signing method

Method and a device for sterilizing downloaded files

Method and system for recovering the validity of cryptographically...

Method of mounting electronic circuit chip

Unique code generating apparatus, method, program and recording medium

Method and apparatus for symmetric-key decryption

Database integration management method and apparatus and processing...

Terminal for use in a system interfacing with storage media

Method of checking authenticity of sheet with built-in electronic c...

Digital signing method

Semiconductor devices and manufacturing method therefor

Pseudorandom number generating apparatus or encryption or decryptio...

Pseudorandom number generating apparatus or encryption or decryptio...

Trusted computer system

Method and apparatus for symmetric-key decryption

Time stamp generating system

Identification code management method and management system

RFID tag, and RFID tag-related determining device and method, and m...

Handling support method and handling support system

Method and a device for managing a computer network

Method and system for recovering the validity of cryptographically...

Method and apparatus for symmetric-key encryption

Terminal for use in a system interfacing with storage media

Semiconductor devices

Method of checking authenticity of sheet with built-in electronic c...

Identification code management method and management system

Database integration management method and apparatus and processing...

Processing apparatus, program, or system of secret information

Digital signature generating method and digital signature verifying...

Method for mounting electronic circuit chip

Patents Applicationslast 30 patents

Digital signing method

SEMICONDUCTOR DEVICES AND MANUFACTURING METHOD THEREFOR

Method and apparatus for symmetric-key decryption

Method and a device for managing a computer network

Terminal for use in a system interfacing with storage media

TERMINAL FOR USE IN A SYSTEM INTERFACING WITH STORAGE MEDIA

Method of checking authenticity of sheet with built-in electronic c...

Method and system for recovering the validity of cryptographically...

Database integration management method and apparatus and processing...

Identification code management method and management system

Semiconductor devices and manufacturing method therefor

Digital data authentication method

Unique code generating apparatus, method, program and recording medium

Method of mounting electronic circuit chip

Method of checking authenticity of sheet with built-in electronic c...

Time stamp generating system

RFID tag, and RFID tag-related determining device and method, and m...

Handling support method and handling support system

Encrypting conversion apparatus, decrypting conversion apparatus, c...

IC card equipped with elliptic curve encryption processing facility

Trusted computer system

Pseudorandom number generating apparatus or encryption or decryptio...

Digital signature generating method and digital signature verifying...

Pseudorandom number generating apparatus or encryption or decryptio...

Digital data authentication method

Database integration management method and apparatus and processing...

Method and system for recovering the validity of cryptographically...

Method and a device for managing a computer network

Identification code management method and management system

Method and apparatus for symmetric-key encryption