Ken Naganuma

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Data comparison device, data comparison system, and data comparison...
- Patent number 11,971,998
- Issue date Apr 30, 2024
- Hitachi, Ltd.
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data processing system and data processing method
- Patent number 11,295,635
- Issue date Apr 5, 2022
- Hitachi, Ltd.
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Value comparison server, value comparison encryption system, and va...
- Patent number 11,184,163
- Issue date Nov 23, 2021
- Hitachi, Ltd.
- Hisayoshi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data analysis server, data analysis system, and data analysis method
- Patent number 11,120,143
- Issue date Sep 14, 2021
- Hitachi, Ltd.
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Signature verification system, signature verification method, and s...
- Patent number 11,018,876
- Issue date May 25, 2021
- Hitachi, Ltd.
- Yosuke Kaga
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Searchable encryption processing system and searchable encryption p...
- Patent number 10,489,604
- Issue date Nov 26, 2019
- Hitachi, Ltd.
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Communication system, vehicle-mounted terminal, roadside device
- Patent number 9,601,016
- Issue date Mar 21, 2017
- RENESAS ELECTRONICS CORPORATION
- Eriko Ando
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communications device and authentication processing method
- Patent number 9,432,197
- Issue date Aug 30, 2016
- Renesas Electronics Corporation
- Ken Naganuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Searchable encryption processing system
- Patent number 9,275,250
- Issue date Mar 1, 2016
- Hitachi, Ltd.
- Masayuki Yoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Confidential computation system, confidential computation method, a...
- Patent number 9,276,734
- Issue date Mar 1, 2016
- Hitachi, Ltd.
- Ken Naganuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system, vehicle-mounted terminal, roadside device
- Patent number 9,135,820
- Issue date Sep 15, 2015
- Renesas Electronics Corporation
- Eriko Ando
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system, vehicle-mounted terminal, roadside device
- Patent number 8,819,418
- Issue date Aug 26, 2014
- Renesas Electronics Corporation
- Eriko Ando
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Positional information system
- Patent number 8,165,601
- Issue date Apr 24, 2012
- Hitachi, Ltd.
- Ken Naganuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DATA MANAGEMENT SYSTEM, DATA MANAGEMENT METHOD, AND NON-TRANSITORY...
- Publication number 20240259192
- Publication date Aug 1, 2024
- Hitachi, Ltd
- Kenta Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA MANAGEMENT SYSTEM, DATA MANAGEMENT METHOD, AND NON-TRANSITORY...
- Publication number 20220391518
- Publication date Dec 8, 2022
- Hitachi, Ltd
- Yukie MOTOMIYA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA COMPARISON DEVICE, DATA COMPARISON SYSTEM, AND DATA COMPARISON...
- Publication number 20200401706
- Publication date Dec 24, 2020
- Hitachi, Ltd
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VALUE COMPARISON SERVER, VALUE COMPARISON ENCRYPTION SYSTEM, AND VA...
- Publication number 20190363878
- Publication date Nov 28, 2019
- Hitachi, Ltd
- Hisayoshi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA ANALYSIS SERVER, DATA ANALYSIS SYSTEM, AND DATA ANALYSIS METHOD
- Publication number 20190318104
- Publication date Oct 17, 2019
- Hitachi, Ltd
- Masayuki YOSHINO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMPUTER SYSTEM, CONNECTION APPARATUS, AND PROCESSING METHOD USING...
- Publication number 20190260715
- Publication date Aug 22, 2019
- Hitachi, Ltd
- Takayuki SUZUKI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SIGNATURE VERIFICATION SYSTEM, SIGNATURE VERIFICATION METHOD, AND S...
- Publication number 20190238344
- Publication date Aug 1, 2019
- Hitachi, Ltd
- Yosuke KAGA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDITING EQUIPMENT, ANONYMOUS REMITTANCE METHOD WITH AUDIT FUNCTION...
- Publication number 20190228413
- Publication date Jul 25, 2019
- Hitachi, Ltd
- Ken NAGANUMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA PROCESSING SYSTEM AND DATA PROCESSING METHOD
- Publication number 20190147770
- Publication date May 16, 2019
- Masayuki YOSHINO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DATA PROCESSING METHOD AND DATA PROCESSING SYSTEM
- Publication number 20190012469
- Publication date Jan 10, 2019
- Hitachi, Ltd
- Ken Naganuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Key Generator, Computer System, and Encryption Statistical Processi...
- Publication number 20180048467
- Publication date Feb 15, 2018
- Hitachi, Ltd
- Masayuki Yoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR RETRIEVING ENCRYPTED GRAPH, SYSTEM FOR RETRIEVING ENCRYP...
- Publication number 20170322977
- Publication date Nov 9, 2017
- Hitachi, Ltd
- Ken NAGANUMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Data Aggregation/Analysis System and Method Therefor
- Publication number 20170308580
- Publication date Oct 26, 2017
- Hitachi, Ltd
- Ken NAGANUMA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SUPPORT VECTOR MACHINE LEARNING SYSTEM AND SUPPORT VECTOR MACHINE L...
- Publication number 20170039487
- Publication date Feb 9, 2017
- Hitachi, Ltd
- Ken Naganuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEARCHABLE ENCRYPTION PROCESSING SYSTEM AND SEARCHABLE ENCRYPTION P...
- Publication number 20160335450
- Publication date Nov 17, 2016
- Hitachi, Ltd
- Masayuki YOSHINO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE
- Publication number 20150358170
- Publication date Dec 10, 2015
- RENESAS ELECTRONICS CORPORATION
- Eriko ANDO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DATA POSSESSION VERIFICATION SYSTEM AND METHOD
- Publication number 20150288703
- Publication date Oct 8, 2015
- Hitachi, Ltd
- Masayuki Yoshino
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE
- Publication number 20140303881
- Publication date Oct 9, 2014
- Eriko ANDO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
CONFIDENTIAL COMPUTATION SYSTEM, CONFIDENTIAL COMPUTATION METHOD, A...
- Publication number 20140208101
- Publication date Jul 24, 2014
- Hitachi, Ltd
- Ken Naganuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SEARCHABLE ENCRYPTION PROCESSING SYSTEM
- Publication number 20130262863
- Publication date Oct 3, 2013
- Hitachi, Ltd
- Masayuki Yoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE
- Publication number 20130067220
- Publication date Mar 14, 2013
- Renesas Electronics Corporation
- Eriko Ando
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS COMMUNICATIONS DEVICE AND AUTHENTICATION PROCESSING METHOD
- Publication number 20120311340
- Publication date Dec 6, 2012
- Renesas Electronics Corporation
- Ken Naganuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
POSITIONAL INFORMATION SYSTEM
- Publication number 20110201359
- Publication date Aug 18, 2011
- Hitachi, Ltd
- Ken NAGANUMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ken Naganuma

Person

Patents Grantslast 30 patents

Data comparison device, data comparison system, and data comparison...

Data processing system and data processing method

Value comparison server, value comparison encryption system, and va...

Data analysis server, data analysis system, and data analysis method

Signature verification system, signature verification method, and s...

Searchable encryption processing system and searchable encryption p...

Communication system, vehicle-mounted terminal, roadside device

Wireless communications device and authentication processing method

Searchable encryption processing system

Confidential computation system, confidential computation method, a...

Communication system, vehicle-mounted terminal, roadside device

Communication system, vehicle-mounted terminal, roadside device

Positional information system

Patents Applicationslast 30 patents

DATA MANAGEMENT SYSTEM, DATA MANAGEMENT METHOD, AND NON-TRANSITORY...

DATA MANAGEMENT SYSTEM, DATA MANAGEMENT METHOD, AND NON-TRANSITORY...

DATA COMPARISON DEVICE, DATA COMPARISON SYSTEM, AND DATA COMPARISON...

VALUE COMPARISON SERVER, VALUE COMPARISON ENCRYPTION SYSTEM, AND VA...

DATA ANALYSIS SERVER, DATA ANALYSIS SYSTEM, AND DATA ANALYSIS METHOD

COMPUTER SYSTEM, CONNECTION APPARATUS, AND PROCESSING METHOD USING...

SIGNATURE VERIFICATION SYSTEM, SIGNATURE VERIFICATION METHOD, AND S...

AUDITING EQUIPMENT, ANONYMOUS REMITTANCE METHOD WITH AUDIT FUNCTION...

DATA PROCESSING SYSTEM AND DATA PROCESSING METHOD

DATA PROCESSING METHOD AND DATA PROCESSING SYSTEM

Key Generator, Computer System, and Encryption Statistical Processi...

METHOD FOR RETRIEVING ENCRYPTED GRAPH, SYSTEM FOR RETRIEVING ENCRYP...

Data Aggregation/Analysis System and Method Therefor

SUPPORT VECTOR MACHINE LEARNING SYSTEM AND SUPPORT VECTOR MACHINE L...

SEARCHABLE ENCRYPTION PROCESSING SYSTEM AND SEARCHABLE ENCRYPTION P...

COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE

DATA POSSESSION VERIFICATION SYSTEM AND METHOD

COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE

CONFIDENTIAL COMPUTATION SYSTEM, CONFIDENTIAL COMPUTATION METHOD, A...

SEARCHABLE ENCRYPTION PROCESSING SYSTEM

COMMUNICATION SYSTEM, VEHICLE-MOUNTED TERMINAL, ROADSIDE DEVICE

WIRELESS COMMUNICATIONS DEVICE AND AUTHENTICATION PROCESSING METHOD

POSITIONAL INFORMATION SYSTEM