Kazuhiko Minematsu

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
MAC tag list generation apparatus, MAC tag list verification appara...
- Patent number 11,824,993
- Issue date Nov 21, 2023
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
MAC tag list generation apparatus, MAC tag list verification appara...
- Patent number 11,750,398
- Issue date Sep 5, 2023
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Random number generation device, random number generation method, e...
- Patent number 11,579,845
- Issue date Feb 14, 2023
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encryption device, encryption method, program, decryption device, a...
- Patent number 11,463,235
- Issue date Oct 4, 2022
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Message authentication system, apparatus, and message verification...
- Patent number 11,336,456
- Issue date May 17, 2022
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Random number generation method selecting system, random number gen...
- Patent number 11,327,719
- Issue date May 10, 2022
- NEC Corporation
- Yuki Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Decoding apparatus, decoding method, and program
- Patent number 11,257,399
- Issue date Feb 22, 2022
- NEC Corporation
- Yuki Tanaka
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Authentication tag generation apparatus, authentication tag verific...
- Patent number 11,251,965
- Issue date Feb 15, 2022
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Inverse-image sampling device, inverse-image sampling method, and i...
- Patent number 11,216,533
- Issue date Jan 4, 2022
- NEC Corporation
- Yuki Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication encryption method, authentication decryption method,...
- Patent number 10,623,176
- Issue date Apr 14, 2020
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
MAC tag list generating apparatus, MAC tag list verifying apparatus...
- Patent number 10,355,862
- Issue date Jul 16, 2019
- NEC Corporation
- Kazuhiko Minematsu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Authentic encryption device, authenticated encryption method, and p...
- Patent number 10,341,088
- Issue date Jul 2, 2019
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device, method, and program for message authentication tag generation
- Patent number 9,787,475
- Issue date Oct 10, 2017
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Universal hash function computing device, method and program
- Patent number 9,515,830
- Issue date Dec 6, 2016
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device, method, and program for format-preserving encryption, and d...
- Patent number 9,432,181
- Issue date Aug 30, 2016
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Block encryption device, decryption device, encrypting method, decr...
- Patent number 8,891,761
- Issue date Nov 18, 2014
- NEC Corporation
- Kazuhiko Minematsu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Block encryption device and method and computer program
- Patent number 8,891,758
- Issue date Nov 18, 2014
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Message authentication device, message authentication method, messa...
- Patent number 8,589,688
- Issue date Nov 19, 2013
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Common key block encryption device, common key block encryption met...
- Patent number 8,577,032
- Issue date Nov 5, 2013
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tag generation apparatus, tag verification apparatus, communication...
- Patent number 8,543,820
- Issue date Sep 24, 2013
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adjustment-value-attached block cipher apparatus, cipher generation...
- Patent number 8,526,602
- Issue date Sep 3, 2013
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Tweakable block encryption apparatus, method, and program
- Patent number 8,189,770
- Issue date May 29, 2012
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for on-line digital watermark detection
- Patent number 6,700,993
- Issue date Mar 2, 2004
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AN...
- Publication number 20230297693
- Publication date Sep 21, 2023
- NEC Corporation
- Kazuhiko MINEMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATED ENCRYPTION APPARATUS, AUTHENTICATED DECRYPTION APPARA...
- Publication number 20230139104
- Publication date May 4, 2023
- NEC Corporation
- Kazuhiko MINEMATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MEMORY PROCESSING APPARATUS, MEMORY VERIFICATION APPARATUS, MEMORY...
- Publication number 20230132163
- Publication date Apr 27, 2023
- NEC Corporation
- Akiko MUKAI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAC TAG LIST GENERATION APPARATUS, MAC TAG LIST VERIFICATION APPARA...
- Publication number 20220173909
- Publication date Jun 2, 2022
- NEC Corporation
- Kazuhiko MINEMATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAC TAG LIST GENERATION APPARATUS, MAC TAG LIST VERIFICATION APPARA...
- Publication number 20220006643
- Publication date Jan 6, 2022
- NEC Corporation
- Kazuhiko MINEMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATED ENCRYPTION DEVICE, AUTHENTICATED DECRYPTION DEVICE, A...
- Publication number 20210399875
- Publication date Dec 23, 2021
- NEC Corporation
- Akiko INOUE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION DEVICE, ENCRYPTION METHOD, PROGRAM, DECRYPTION DEVICE, A...
- Publication number 20210021406
- Publication date Jan 21, 2021
- NEC Corporation
- Kazuhiko MINEMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RANDOM NUMBER GENERATION SYSTEM, METHOD FOR GENERATING RANDOM NUMBE...
- Publication number 20200382299
- Publication date Dec 3, 2020
- NEC Corporation
- Yuki TANAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RANDOM NUMBER GENERATION SYSTEM, RANDOM NUMBER GENERATION METHOD, A...
- Publication number 20200371751
- Publication date Nov 26, 2020
- NEC Corporation
- Yuki TANAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RANDOM NUMBER GENERATION SYSTEM, RANDOM NUMBER GENERATION METHOD, A...
- Publication number 20200319853
- Publication date Oct 8, 2020
- NEC Corporation
- Yuki TANAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INVERSE-IMAGE SAMPLING DEVICE, INVERSE-IMAGE SAMPLING METHOD, AND I...
- Publication number 20200167406
- Publication date May 28, 2020
- NEC Corporation
- Yuki TANAKA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RANDOM NUMBER GENERATION DEVICE, RANDOM NUMBER GENERATION METHOD, E...
- Publication number 20200150928
- Publication date May 14, 2020
- NEC Corporation
- Kazuhiko MINEMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATION TAG GENERATION APPARATUS, AUTHENTICATION TAG VERIFIC...
- Publication number 20200076609
- Publication date Mar 5, 2020
- NEC Corporation
- Kazuhiko MINEMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MESSAGE AUTHENTICATION SYSTEM, APPARATUS, AND MESSAGE VERIFICATION...
- Publication number 20200076611
- Publication date Mar 5, 2020
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DECODING APPARATUS, DECODING METHOD, AND PROGRAM
- Publication number 20190347962
- Publication date Nov 14, 2019
- NEC Corporation
- Yuki TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MAC TAG LIST GENERATING APPARATUS, MAC TAG LIST VERIFYING APPARATUS...
- Publication number 20180013550
- Publication date Jan 11, 2018
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTHENTICATION ENCRYPTION METHOD, AUTHENTICATION DECRYPTION METHOD,...
- Publication number 20170272239
- Publication date Sep 21, 2017
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTHENTICATED ENCRYPTION DEVICE, AUTHENTICATED ENCRYPTION METHOD, A...
- Publication number 20160173276
- Publication date Jun 16, 2016
- NEC Corporation
- Kazuhiko MINEMATSU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TAG GENERATION DEVICE, TAG GENERATION METHOD, AND TAG GENERATION PR...
- Publication number 20160006568
- Publication date Jan 7, 2016
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVICE, METHOD, AND PROGRAM FOR FORMAT-PRESERVING ENCRYPTION, AND D...
- Publication number 20150341166
- Publication date Nov 26, 2015
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
UNIVERSAL HASH FUNCTION COMPUTING DEVICE, METHOD AND PROGRAM
- Publication number 20150180666
- Publication date Jun 25, 2015
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INCREMENTAL MAC TAG GENERATION DEVICE, METHOD, AND PROGRAM, AND MES...
- Publication number 20140317407
- Publication date Oct 23, 2014
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
APPARATUS-SPECIFIC INFORMATION GENERATION DEVICE, APPARATUS-SPECIFI...
- Publication number 20140137211
- Publication date May 15, 2014
- NEC Corporation
- Kazuhiko Minematsu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
BLOCK ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTING METHOD, DECR...
- Publication number 20130308775
- Publication date Nov 21, 2013
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BLOCK ENCRYPTION DEVICE, BLOCK DECRYPTION DEVICE, BLOCK ENCRYPTION...
- Publication number 20120314857
- Publication date Dec 13, 2012
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BLOCK ENCRYPTION DEVICE AND METHOD AND COMPUTER PROGRAM
- Publication number 20120269342
- Publication date Oct 25, 2012
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TAG GENERATION APPARATUS, TAG VERIFICATION APPARATUS, COMMUNICATION...
- Publication number 20120057702
- Publication date Mar 8, 2012
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMON KEY BLOCK ENCRYPTION DEVICE, COMMON KEY BLOCK ENCRYPTION MET...
- Publication number 20110211691
- Publication date Sep 1, 2011
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ENCRYPTION DEVICES FOR BLOCK HAVING DOUBLE BLOCK LENGTH, DECRYPTION...
- Publication number 20110150225
- Publication date Jun 23, 2011
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ADJUSTMENT-VALUE-ATTACHED BLOCK CIPHER APPARATUS, CIPHER GENERATION...
- Publication number 20100329449
- Publication date Dec 30, 2010
- NEC Corporation
- Kazuhiko Minematsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Kazuhiko Minematsu

Person

Patents Grantslast 30 patents

MAC tag list generation apparatus, MAC tag list verification appara...

MAC tag list generation apparatus, MAC tag list verification appara...

Random number generation device, random number generation method, e...

Encryption device, encryption method, program, decryption device, a...

Message authentication system, apparatus, and message verification...

Random number generation method selecting system, random number gen...

Decoding apparatus, decoding method, and program

Authentication tag generation apparatus, authentication tag verific...

Inverse-image sampling device, inverse-image sampling method, and i...

Authentication encryption method, authentication decryption method,...

MAC tag list generating apparatus, MAC tag list verifying apparatus...

Authentic encryption device, authenticated encryption method, and p...

Device, method, and program for message authentication tag generation

Universal hash function computing device, method and program

Device, method, and program for format-preserving encryption, and d...

Block encryption device, decryption device, encrypting method, decr...

Block encryption device and method and computer program

Message authentication device, message authentication method, messa...

Common key block encryption device, common key block encryption met...

Tag generation apparatus, tag verification apparatus, communication...

Adjustment-value-attached block cipher apparatus, cipher generation...

Tweakable block encryption apparatus, method, and program

System and method for on-line digital watermark detection

Patents Applicationslast 30 patents

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AN...

AUTHENTICATED ENCRYPTION APPARATUS, AUTHENTICATED DECRYPTION APPARA...

MEMORY PROCESSING APPARATUS, MEMORY VERIFICATION APPARATUS, MEMORY...

MAC TAG LIST GENERATION APPARATUS, MAC TAG LIST VERIFICATION APPARA...

MAC TAG LIST GENERATION APPARATUS, MAC TAG LIST VERIFICATION APPARA...

AUTHENTICATED ENCRYPTION DEVICE, AUTHENTICATED DECRYPTION DEVICE, A...

ENCRYPTION DEVICE, ENCRYPTION METHOD, PROGRAM, DECRYPTION DEVICE, A...

RANDOM NUMBER GENERATION SYSTEM, METHOD FOR GENERATING RANDOM NUMBE...

RANDOM NUMBER GENERATION SYSTEM, RANDOM NUMBER GENERATION METHOD, A...

RANDOM NUMBER GENERATION SYSTEM, RANDOM NUMBER GENERATION METHOD, A...

INVERSE-IMAGE SAMPLING DEVICE, INVERSE-IMAGE SAMPLING METHOD, AND I...

RANDOM NUMBER GENERATION DEVICE, RANDOM NUMBER GENERATION METHOD, E...

AUTHENTICATION TAG GENERATION APPARATUS, AUTHENTICATION TAG VERIFIC...

MESSAGE AUTHENTICATION SYSTEM, APPARATUS, AND MESSAGE VERIFICATION...

DECODING APPARATUS, DECODING METHOD, AND PROGRAM

MAC TAG LIST GENERATING APPARATUS, MAC TAG LIST VERIFYING APPARATUS...

AUTHENTICATION ENCRYPTION METHOD, AUTHENTICATION DECRYPTION METHOD,...

AUTHENTICATED ENCRYPTION DEVICE, AUTHENTICATED ENCRYPTION METHOD, A...

TAG GENERATION DEVICE, TAG GENERATION METHOD, AND TAG GENERATION PR...

DEVICE, METHOD, AND PROGRAM FOR FORMAT-PRESERVING ENCRYPTION, AND D...

UNIVERSAL HASH FUNCTION COMPUTING DEVICE, METHOD AND PROGRAM

INCREMENTAL MAC TAG GENERATION DEVICE, METHOD, AND PROGRAM, AND MES...

APPARATUS-SPECIFIC INFORMATION GENERATION DEVICE, APPARATUS-SPECIFI...

BLOCK ENCRYPTION DEVICE, DECRYPTION DEVICE, ENCRYPTING METHOD, DECR...

BLOCK ENCRYPTION DEVICE, BLOCK DECRYPTION DEVICE, BLOCK ENCRYPTION...

BLOCK ENCRYPTION DEVICE AND METHOD AND COMPUTER PROGRAM

TAG GENERATION APPARATUS, TAG VERIFICATION APPARATUS, COMMUNICATION...

COMMON KEY BLOCK ENCRYPTION DEVICE, COMMON KEY BLOCK ENCRYPTION MET...

ENCRYPTION DEVICES FOR BLOCK HAVING DOUBLE BLOCK LENGTH, DECRYPTION...

ADJUSTMENT-VALUE-ATTACHED BLOCK CIPHER APPARATUS, CIPHER GENERATION...