Toshiyuki Isshiki

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Signature verification system, signature apparatus, signature verif...
- Patent number 12,278,909
- Issue date Apr 15, 2025
- NEC Corporation
- Hiroto Tamiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Collation system, client terminal, server apparatus, collation meth...
- Patent number 12,242,644
- Issue date Mar 4, 2025
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Collation system, client, and server
- Patent number 12,200,147
- Issue date Jan 14, 2025
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information concealing apparatus, information reconfiguring apparat...
- Patent number 12,199,638
- Issue date Jan 14, 2025
- NEC Corporation
- Hiroto Tamiya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Information matching system and information matching method
- Patent number 12,155,769
- Issue date Nov 26, 2024
- NEC Corporation
- Haruna Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information matching system and information matching method
- Patent number 12,143,482
- Issue date Nov 12, 2024
- NEC Corporation
- Haruna Fukuda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encryption system, function value calculation method, and program
- Patent number 12,120,229
- Issue date Oct 15, 2024
- NEC Corporation
- Hiroto Tamiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic transaction system, transaction server, verification ser...
- Patent number 12,079,867
- Issue date Sep 3, 2024
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Collation system, client and server
- Patent number 12,063,293
- Issue date Aug 13, 2024
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data extraction system, data extraction method, registration appara...
- Patent number 11,968,300
- Issue date Apr 23, 2024
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Authentication system, client, and server
- Patent number 11,909,892
- Issue date Feb 20, 2024
- NEC Corporation
- Haruna Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System, apparatus, method and program for preventing illegal distri...
- Patent number 11,895,240
- Issue date Feb 6, 2024
- NEC Corporation
- Hikaru Tsuchida
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matching system, method, apparatus, and program
- Patent number 11,882,218
- Issue date Jan 23, 2024
- NEC Corporation
- Haruna Higo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encryption system, key generation apparatus, key generation method,...
- Patent number 11,849,019
- Issue date Dec 19, 2023
- NEC Corporation
- Haruna Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encrypted information matching device, encrypted information matchi...
- Patent number 11,451,368
- Issue date Sep 20, 2022
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data extraction system, data extraction method, registration appara...
- Patent number 11,451,388
- Issue date Sep 20, 2022
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information processing device, verification device, and information...
- Patent number 11,283,612
- Issue date Mar 22, 2022
- NEC Corporation
- Hikaru Tsuchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Matching system, method, apparatus, and program
- Patent number 11,128,462
- Issue date Sep 21, 2021
- NEC Corporation
- Haruna Higo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ciphertext matching system and ciphertext matching method
- Patent number 11,101,975
- Issue date Aug 24, 2021
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Collation system, collation method, and non-transitory recording me...
- Patent number 10,826,680
- Issue date Nov 3, 2020
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and method for electronic bidding
- Patent number 10,797,867
- Issue date Oct 6, 2020
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encrypted text verification system, method and recording medium
- Patent number 10,503,915
- Issue date Dec 10, 2019
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encrypted text verification system, method, and recording medium
- Patent number 10,484,182
- Issue date Nov 19, 2019
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Program collation system, node, collation method, and computer-read...
- Patent number 10,211,986
- Issue date Feb 19, 2019
- NEC Corporation
- Toshiyuki Isshiki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encrypted text matching system, method, and computer readable medium
- Patent number 9,985,779
- Issue date May 29, 2018
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Collation system, node, collation method, and computer readable medium
- Patent number 9,910,478
- Issue date Mar 6, 2018
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encrypted data verification system, method and recording medium
- Patent number 9,906,363
- Issue date Feb 27, 2018
- NEC Corporation
- Satoshi Obana
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encrypted text matching system, method, and computer readable medium
- Patent number 9,900,146
- Issue date Feb 20, 2018
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Encrypted text matching system, method, and computer readable medium
- Patent number 9,882,712
- Issue date Jan 30, 2018
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Bit string collation system, bit string collation method, and program
- Patent number 9,621,533
- Issue date Apr 11, 2017
- NEC Corporation
- Toshiyuki Isshiki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DIGITAL SIGNATURE SYSTEM
- Publication number 20250240173
- Publication date Jul 24, 2025
- NEC Corporation
- Hiroto TAMIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION PROCESSING SYSTEM, DATA PROVIDING APPARATUS, DATA PROCE...
- Publication number 20250209205
- Publication date Jun 26, 2025
- NEC Corporation
- Hikaru TSUCHIDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SECRET SHARING COMPUTATION SYSTEM, RELAY APPARATUS, AND METHODS AND...
- Publication number 20250211431
- Publication date Jun 26, 2025
- NEC Corporation
- Masahiro Nara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MATCHING SYSTEM, MATCHING APPARATUS, MATCHING METHOD, AND PROGRAM
- Publication number 20250211439
- Publication date Jun 26, 2025
- NEC Corporation
- Toshiyuki ISSHIKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION PROCESSING SYSTEM, DATA PROVIDING APPARATUS, DATA PROCE...
- Publication number 20250202711
- Publication date Jun 19, 2025
- NEC Corporation
- Hikaru Tsuchida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE SYSTEM
- Publication number 20250193021
- Publication date Jun 12, 2025
- NEC Corporation
- Hiroto TAMIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MATCHING SYSTEM, KEY GENERATION APPARATUS, MATCHING APPARATUS, FIRS...
- Publication number 20250070967
- Publication date Feb 27, 2025
- NEC Corporation
- Haruna FUKUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE SYSTEM, AND METHOD
- Publication number 20250070985
- Publication date Feb 27, 2025
- NEC Corporation
- Haruna FUKUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MATCHING SYSTEM, MATCHING METHOD AND MATCHING PROGRAM
- Publication number 20250053638
- Publication date Feb 13, 2025
- NEC Corporation
- Haruna FUKUDA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DISTRIBUTED RE-ENCRYPTION APPARATUS, CRYPTOGRAPHIC SYSTEM, DISTRIBU...
- Publication number 20250023717
- Publication date Jan 16, 2025
- NEC Corporation
- Hikaru TSUCHIDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE SYSTEM AND METHOD
- Publication number 20240430100
- Publication date Dec 26, 2024
- NEC Corporation
- Haruna FUKUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD
- Publication number 20240430101
- Publication date Dec 26, 2024
- NEC Corporation
- Haruna FUKUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA MANAGEMENT DEVICE, KEY MANAGEMENT DEVICE, DATA MANAGEMENT METH...
- Publication number 20240430243
- Publication date Dec 26, 2024
- NEC Corporation
- Yoshitomo WARASHINA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUTHENTICATION APPARATUS, AUTHENTICATION METHOD, AND PROGRAM
- Publication number 20240394352
- Publication date Nov 28, 2024
- NEC Corporation
- Yuta SHIMIZU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
AUTHENTICATION SYSTEM, AUTHENTICATEE APPARATUS, AUTHENTICATOR APPAR...
- Publication number 20240356725
- Publication date Oct 24, 2024
- NEC Corporation
- Hiroto TAMIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TERMINAL APPARATUS, ENCRYPTED INFORMATION TRANSFORMATION APPARATUS,...
- Publication number 20240291646
- Publication date Aug 29, 2024
- NEC Corporation
- Kengo MORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
REGISTRATION INFORMATION GENERATION APPARATUS, COLLATION INFORMATIO...
- Publication number 20240273173
- Publication date Aug 15, 2024
- NEC Corporation
- Toshiyuki ISSHIKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
HOMOMORPHIC CYCLIC OPERATION SYSTEM, HOMOMORPHIC CYCLIC OPERATION A...
- Publication number 20240214178
- Publication date Jun 27, 2024
- NEC Corporation
- Hiroto TAMIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIMILARITY CALCULATION SYSTEM, SIMILARITY CALCULATION APPARATUS, SI...
- Publication number 20240171373
- Publication date May 23, 2024
- NEC Corporation
- Hiroto TAMIYA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SIMILARITY CALCULATION SYSTEM, SIMILARITY CALCULATION APPARATUS, SI...
- Publication number 20240121075
- Publication date Apr 11, 2024
- NEC Corporation
- Sanami NAKAGAWA
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
BIOMETRIC AUTHENTICATION SYSTEM, TEMPLATE UPDATING METHOD THEREFOR,...
- Publication number 20240104182
- Publication date Mar 28, 2024
- NEC Corporation
- Masahiro NARA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
RECOVERY VERIFICATION SYSTEM, COLLATION SYSTEM, RECOVERY VERIFICATI...
- Publication number 20240039718
- Publication date Feb 1, 2024
- NEC Corporation
- Masahiro NARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION CONCEALING CONTROL APPARATUS, INFORMATION CONCEALING AP...
- Publication number 20230412362
- Publication date Dec 21, 2023
- NEC Corporation
- Hiroto Tamiya
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION CONCEALING APPARATUS, INFORMATION RECONFIGURING APPARAT...
- Publication number 20230396273
- Publication date Dec 7, 2023
- NEC Corporation
- Hiroto Tamiya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
COMPARISON SYSTEM, COMPARISON METHOD AND COMPUTER READABLE MEDIUM
- Publication number 20230370261
- Publication date Nov 16, 2023
- NEC Corporation
- Masahiro NARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COLLATION SYSTEM, CLIENT TERMINAL, SERVER APPARATUS, COLLATION METH...
- Publication number 20230342489
- Publication date Oct 26, 2023
- NEC Corporation
- Toshiyuki ISSHIKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SIGNATURE VERIFICATION SYSTEM, SIGNATURE APPARATUS, SIGNATURE VERIF...
- Publication number 20230224165
- Publication date Jul 13, 2023
- NEC Corporation
- Hiroto TAMIYA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNATURE VERIFICATION SYSTEM, SIGNATURE VERIFICATION METHOD, AND P...
- Publication number 20230224164
- Publication date Jul 13, 2023
- NEC Corporation
- Batnyam ENKHTAIVAN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INFORMATION MATCHING SYSTEM AND INFORMATION MATCHING METHOD
- Publication number 20230006829
- Publication date Jan 5, 2023
- NEC Corporation
- Haruna FUKUDA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA EXTRACTION SYSTEM, DATA EXTRACTION METHOD, REGISTRATION APPARA...
- Publication number 20220407683
- Publication date Dec 22, 2022
- NEC Corporation
- Toshiyuki ISSHIKI
- G06 - COMPUTING CALCULATING COUNTING

Toshiyuki Isshiki

Person

Patents Grantslast 30 patents

Signature verification system, signature apparatus, signature verif...

Collation system, client terminal, server apparatus, collation meth...

Collation system, client, and server

Information concealing apparatus, information reconfiguring apparat...

Information matching system and information matching method

Information matching system and information matching method

Encryption system, function value calculation method, and program

Electronic transaction system, transaction server, verification ser...

Collation system, client and server

Data extraction system, data extraction method, registration appara...

Authentication system, client, and server

System, apparatus, method and program for preventing illegal distri...

Matching system, method, apparatus, and program

Encryption system, key generation apparatus, key generation method,...

Encrypted information matching device, encrypted information matchi...

Data extraction system, data extraction method, registration appara...

Information processing device, verification device, and information...

Matching system, method, apparatus, and program

Ciphertext matching system and ciphertext matching method

Collation system, collation method, and non-transitory recording me...

System and method for electronic bidding

Encrypted text verification system, method and recording medium

Encrypted text verification system, method, and recording medium

Program collation system, node, collation method, and computer-read...

Encrypted text matching system, method, and computer readable medium

Collation system, node, collation method, and computer readable medium

Encrypted data verification system, method and recording medium

Encrypted text matching system, method, and computer readable medium

Encrypted text matching system, method, and computer readable medium

Bit string collation system, bit string collation method, and program

Patents Applicationslast 30 patents

DIGITAL SIGNATURE SYSTEM

INFORMATION PROCESSING SYSTEM, DATA PROVIDING APPARATUS, DATA PROCE...

SECRET SHARING COMPUTATION SYSTEM, RELAY APPARATUS, AND METHODS AND...

MATCHING SYSTEM, MATCHING APPARATUS, MATCHING METHOD, AND PROGRAM

INFORMATION PROCESSING SYSTEM, DATA PROVIDING APPARATUS, DATA PROCE...

DIGITAL SIGNATURE SYSTEM

MATCHING SYSTEM, KEY GENERATION APPARATUS, MATCHING APPARATUS, FIRS...

DIGITAL SIGNATURE SYSTEM, AND METHOD

MATCHING SYSTEM, MATCHING METHOD AND MATCHING PROGRAM

DISTRIBUTED RE-ENCRYPTION APPARATUS, CRYPTOGRAPHIC SYSTEM, DISTRIBU...

DIGITAL SIGNATURE SYSTEM AND METHOD

DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD

DATA MANAGEMENT DEVICE, KEY MANAGEMENT DEVICE, DATA MANAGEMENT METH...

AUTHENTICATION APPARATUS, AUTHENTICATION METHOD, AND PROGRAM

AUTHENTICATION SYSTEM, AUTHENTICATEE APPARATUS, AUTHENTICATOR APPAR...

TERMINAL APPARATUS, ENCRYPTED INFORMATION TRANSFORMATION APPARATUS,...

REGISTRATION INFORMATION GENERATION APPARATUS, COLLATION INFORMATIO...

HOMOMORPHIC CYCLIC OPERATION SYSTEM, HOMOMORPHIC CYCLIC OPERATION A...

SIMILARITY CALCULATION SYSTEM, SIMILARITY CALCULATION APPARATUS, SI...

SIMILARITY CALCULATION SYSTEM, SIMILARITY CALCULATION APPARATUS, SI...

BIOMETRIC AUTHENTICATION SYSTEM, TEMPLATE UPDATING METHOD THEREFOR,...

RECOVERY VERIFICATION SYSTEM, COLLATION SYSTEM, RECOVERY VERIFICATI...

INFORMATION CONCEALING CONTROL APPARATUS, INFORMATION CONCEALING AP...

INFORMATION CONCEALING APPARATUS, INFORMATION RECONFIGURING APPARAT...

COMPARISON SYSTEM, COMPARISON METHOD AND COMPUTER READABLE MEDIUM

COLLATION SYSTEM, CLIENT TERMINAL, SERVER APPARATUS, COLLATION METH...

SIGNATURE VERIFICATION SYSTEM, SIGNATURE APPARATUS, SIGNATURE VERIF...

SIGNATURE VERIFICATION SYSTEM, SIGNATURE VERIFICATION METHOD, AND P...

INFORMATION MATCHING SYSTEM AND INFORMATION MATCHING METHOD

DATA EXTRACTION SYSTEM, DATA EXTRACTION METHOD, REGISTRATION APPARA...