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Ryo Kikuchi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Secret survival data processing system, secret survival data proces...
Patent number
12,095,906
Issue date
Sep 17, 2024
Nippon Telegraph and Telephone Corporation
Atsunori Ichikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secret sigmoid function calculation system, secret logistic regress...
Patent number
12,081,655
Issue date
Sep 3, 2024
Nippon Telegraph and Telephone Corporation
Ibuki Mishina
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Voting system, vote relay server, client terminal, voting method, a...
Patent number
11,900,735
Issue date
Feb 13, 2024
Nippon Telegraph and Telephone Corporation
Koha Kinjo
G07 - CHECKING-DEVICES
Information
Patent Grant
Share generating device, share converting device, secure computatio...
Patent number
11,888,977
Issue date
Jan 30, 2024
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secure joining system, method, secure computing apparatus and program
Patent number
11,888,973
Issue date
Jan 30, 2024
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret statistical processing systems, methods, statistical process...
Patent number
11,880,489
Issue date
Jan 23, 2024
Nippon Telegraph and Telephone Corporation
Satoshi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Share generating device, reconstructing device, secure computation...
Patent number
11,818,254
Issue date
Nov 14, 2023
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Secret computation method, secret computation system, secret comput...
Patent number
11,646,880
Issue date
May 9, 2023
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secret computation system and method
Patent number
11,537,726
Issue date
Dec 27, 2022
Nippon Telegraph and Telephone Corporation
Satoshi Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure computation device, secure computation method, program, and...
Patent number
11,515,998
Issue date
Nov 29, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secure computation system, secure computation apparatus, secure com...
Patent number
11,456,862
Issue date
Sep 27, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Share generating device, share converting device, secure computatio...
Patent number
11,374,743
Issue date
Jun 28, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tracking apparatus and computer readable medium
Patent number
11,295,457
Issue date
Apr 5, 2022
Mitsubishi Electric Corporation
Takayuki Semitsu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Tracking apparatus and computer readable medium
Patent number
11,189,038
Issue date
Nov 30, 2021
Mitsubishi Electric Corporation
Takayuki Semitsu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Circuit concealing apparatus, calculation apparatus, and program
Patent number
11,095,429
Issue date
Aug 17, 2021
Nippon Telegraph and Telephone Corporation
Koutarou Suzuki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Concealed-decision-tree computation system, apparatus, method, and...
Patent number
10,992,462
Issue date
Apr 27, 2021
Nippon Telegraph and Telephone Corporation
Ryo Kikuchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret authentication code adding device, secret authentication cod...
Patent number
10,972,271
Issue date
Apr 6, 2021
Nippon Telegraph and Telephone Corporation
Koki Hamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Share recovery system, share recovery apparatus, share recovery met...
Patent number
10,885,814
Issue date
Jan 5, 2021
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Secure computation system, secure computation device, secure comput...
Patent number
10,867,018
Issue date
Dec 15, 2020
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure computation apparatus, secure computation method and program
Patent number
10,679,522
Issue date
Jun 9, 2020
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Inconsistency detecting method, inconsistency detecting system, inc...
Patent number
10,665,137
Issue date
May 26, 2020
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret random number synthesizing device, secret random number synt...
Patent number
10,657,847
Issue date
May 19, 2020
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Speaker box and projection device
Patent number
10,616,688
Issue date
Apr 7, 2020
Casio Computer Co., Ltd.
Ryo Kikuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light source unit and projector
Patent number
10,585,341
Issue date
Mar 10, 2020
Casio Computer Co., Ltd.
Ryo Kikuchi
F21 - LIGHTING
Information
Patent Grant
Tampering detection device, tampering detection method and program
Patent number
10,523,422
Issue date
Dec 31, 2019
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Electronic device having a heat sink, and projector including the e...
Patent number
10,209,609
Issue date
Feb 19, 2019
Casio Computer Co., Ltd.
Ryo Kikuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Secret parallel processing device, secret parallel processing metho...
Patent number
10,083,314
Issue date
Sep 25, 2018
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret calculation method, secret calculation system, sorting devic...
Patent number
10,074,293
Issue date
Sep 11, 2018
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret quotient transfer device, secret bit decomposition device, s...
Patent number
10,003,460
Issue date
Jun 19, 2018
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secret calculation method, secret calculation system, random permut...
Patent number
10,002,547
Issue date
Jun 19, 2018
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SECRET CALCULATION SYSTEM, APPARATUS, METHOD AND PROGRAM
Publication number
20240184577
Publication date
Jun 6, 2024
Nippon Telegraph and Telephone Corporation
Ryo KIKUCHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PARAMETER ESTIMATION APPARATUS, PARAMETER ESTIMATION SYSTEM, PARAME...
Publication number
20230367846
Publication date
Nov 16, 2023
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ENCRYPTED DATA ANALYSIS DEVICE, ENCRYPTED DATA ANALYSIS METHOD, AND...
Publication number
20230090900
Publication date
Mar 23, 2023
Nippon Telegraph and Telephone Corporation
Ryo KIKUCHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET HASH TABLE CONSTRUCTION SYSTEM, REFERENCE SYSTEM, METHODS FO...
Publication number
20230039723
Publication date
Feb 9, 2023
Nippon Telegraph and Telephone Corporation
Atsunori ICHIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET MAXIMUM VALUE CALCULATION APPARATUS, METHOD AND PROGRAM
Publication number
20230029772
Publication date
Feb 2, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET MAXIMUM VALUE CALCULATION APPARATUS, METHOD AND PROGRAM
Publication number
20230033922
Publication date
Feb 2, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
COMPUTATION APPARATUS, METHOD AND PROGRAM FOR THE SAME
Publication number
20220413802
Publication date
Dec 29, 2022
Nippon Telegraph and Telephone Corporation
Hiroki SUDO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET SURVIVAL DATA PROCESSING SYSTEM, SECRET SURVIVAL DATA PROCES...
Publication number
20220360431
Publication date
Nov 10, 2022
Nippon Telegraph and Telephone Corporation
Atsunori ICHIKAWA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SHARE GENERATING DEVICE, SHARE CONVERTING DEVICE, SECURE COMPUTATIO...
Publication number
20220278829
Publication date
Sep 1, 2022
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET SIGMOID FUNCTION CALCULATION SYSTEM, SECRET LOGISTIC REGRESS...
Publication number
20220006614
Publication date
Jan 6, 2022
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET SIGMOID FUNCTION CALCULATION SYSTEM, SECRET LOGISTIC REGRESS...
Publication number
20210358332
Publication date
Nov 18, 2021
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET STATISTICAL PROCESSING SYSTEMS, METHODS, STATISTICAL PROCESS...
Publication number
20210342476
Publication date
Nov 4, 2021
Nippon Telegraph and Telephone Corporation
Satoshi TANAKA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE JOINING SYSTEM, METHOD, SECURE COMPUTING APPARATUS AND PROGRAM
Publication number
20210314145
Publication date
Oct 7, 2021
Nippon Telegraph and Telephone Corporation
Dai IKARASHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SHARE GENERATING DEVICE, SHARE CONVERTING DEVICE, SECURE COMPUTATIO...
Publication number
20210135849
Publication date
May 6, 2021
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VOTING SYSTEM, VOTE RELAY SERVER, CLIENT TERMINAL, VOTING METHOD, A...
Publication number
20210125446
Publication date
Apr 29, 2021
Nippon Telegraph and Telephone Corporation
Koha KINJO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET COMPUTATION SYSTEM AND METHOD
Publication number
20200387616
Publication date
Dec 10, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Satoshi TANAKA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SHARE GENERATING DEVICE, RECONSTRUCTING DEVICE, SECURE COMPUTATION...
Publication number
20200366466
Publication date
Nov 19, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECURE COMPUTATION DEVICE, SECURE COMPUTATION METHOD, PROGRAM, AND...
Publication number
20200228314
Publication date
Jul 16, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRACKING APPARATUS AND COMPUTER READABLE MEDIUM
Publication number
20200226767
Publication date
Jul 16, 2020
Mitsubishi Electric Corporation
Takayuki SEMITSU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CIRCUIT CONCEALING APPARATUS, CALCULATION APPARATUS, AND PROGRAM
Publication number
20200228310
Publication date
Jul 16, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Koutarou SUZUKI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TRACKING APPARATUS AND COMPUTER READABLE MEDIUM
Publication number
20200226766
Publication date
Jul 16, 2020
Mitsubishi Electric Corporation
Takayuki SEMITSU
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE COMPUTATION SYSTEM, SECURE COMPUTATION APPARATUS, SECURE COM...
Publication number
20200213097
Publication date
Jul 2, 2020
Nippon Telegraph and Telephone Corporation
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET COMPUTATION METHOD, SECRET COMPUTATION SYSTEM, SECRET COMPUT...
Publication number
20190349193
Publication date
Nov 14, 2019
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONCEALED-DECISION-TREE COMPUTATION SYSTEM, APPARATUS, METHOD, AND...
Publication number
20190013935
Publication date
Jan 10, 2019
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Ryo KIKUCHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET AUTHENTICATION CODE ADDING DEVICE, SECRET AUTHENTICATION COD...
Publication number
20180351745
Publication date
Dec 6, 2018
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Koki HAMADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECRET RANDOM NUMBER SYNTHESIZING DEVICE, SECRET RANDOM NUMBER SYNT...
Publication number
20180261133
Publication date
Sep 13, 2018
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Koki HAMADA
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
LIGHT SOURCE UNIT AND PROJECTOR
Publication number
20180231877
Publication date
Aug 16, 2018
CASIO COMPUTER CO., LTD.
Ryo KIKUCHI
G02 - OPTICS
Information
Patent Application
SPEAKER BOX AND PROJECTION DEVICE
Publication number
20180234770
Publication date
Aug 16, 2018
CASIO COMPUTER CO., LTD.
Ryo Kikuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECURE COMPUTATION SYSTEM, SECURE COMPUTATION DEVICE, SECURE COMPUT...
Publication number
20180225431
Publication date
Aug 9, 2018
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Dai IKARASHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ELECTRONIC DEVICE AND PROJECTOR
Publication number
20180173084
Publication date
Jun 21, 2018
CASIO COMPUTER CO., LTD.
Ryo Kikuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY