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Koki Hamada
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Yokohama-City, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Secure computation system, secure computation apparatus, method, an...
Patent number
12,346,478
Issue date
Jul 1, 2025
Nippon Telegraph and Telephone Corporation
Atsunori Ichikawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret hash table construction system, reference system, methods fo...
Patent number
12,333,039
Issue date
Jun 17, 2025
Nippon Telegraph and Telephone Corporation
Atsunori Ichikawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret grouping apparatus, secret grouping system, secret grouping...
Patent number
12,299,047
Issue date
May 13, 2025
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Combustion gas bleeding probe and method for operating same
Patent number
12,275,675
Issue date
Apr 15, 2025
Taiheiyo Cement Corporation
Koki Hamada
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Data access method, data storage system, server apparatus, client a...
Patent number
12,255,993
Issue date
Mar 18, 2025
Nippon Telegraph and Telephone Corporation
Atsunori Ichikawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Encrypted data analysis device, encrypted data analysis method, and...
Patent number
12,189,807
Issue date
Jan 7, 2025
Nippon Telegraph and Telephone Corporation
Ryo Kikuchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure array access apparatus, secure array access method, and program
Patent number
12,164,440
Issue date
Dec 10, 2024
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Analysis query response system, analysis query execution apparatus,...
Patent number
12,141,322
Issue date
Nov 12, 2024
Nippon Telegraph and Telephone Corporation
Atsunori Ichikawa
G06 - COMPUTING CALCULATING COUNTING
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
Secure joining information generation system, secure joining system...
Patent number
12,079,363
Issue date
Sep 3, 2024
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
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
Secure division system, secure computation apparatus, secure divisi...
Patent number
12,010,220
Issue date
Jun 11, 2024
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure strong mapping computing systems, methods, secure computing...
Patent number
11,886,876
Issue date
Jan 30, 2024
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
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
Secret joining system, method, secret calculation apparatus and pro...
Patent number
11,797,540
Issue date
Oct 24, 2023
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure aggregate function computation system, secure computation ap...
Patent number
11,593,362
Issue date
Feb 28, 2023
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Fisher's exact test calculation apparatus, method, and program
Patent number
11,544,350
Issue date
Jan 3, 2023
Nippon Telegraph and Telephone Corporation
Koji Chida
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure reading apparatus, secure writing apparatus, method thereof,...
Patent number
11,514,192
Issue date
Nov 29, 2022
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Coating and method for forming the same
Patent number
11,504,738
Issue date
Nov 22, 2022
IHI Corporation
Naoki Sato
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Secure reading and writing apparatus, secure reading and writing me...
Patent number
11,508,262
Issue date
Nov 22, 2022
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secret table reference system, method, secret calculation apparatus...
Patent number
11,480,991
Issue date
Oct 25, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Confidential sort system and method
Patent number
11,461,395
Issue date
Oct 4, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure aggregate median system, secure computation apparatus, secur...
Patent number
11,316,674
Issue date
Apr 26, 2022
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
11,294,633
Issue date
Apr 5, 2022
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Agreement system, agreement apparatus, program, and recording medium
Patent number
11,265,155
Issue date
Mar 1, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Secure equijoin system, secure equijoin device, secure equijoin met...
Patent number
11,250,004
Issue date
Feb 15, 2022
Nippon Telegraph and Telephone Corporation
Dai Ikarashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure computation for reading multiple elements from a secure text...
Patent number
11,200,346
Issue date
Dec 14, 2021
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Secure computation system, secure computation device, secure comput...
Patent number
11,164,484
Issue date
Nov 2, 2021
Nippon Telegraph and Telephone Corporation
Koki Hamada
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Secure computation system, secure computation device, secure comput...
Patent number
11,121,868
Issue date
Sep 14, 2021
Nippon Telegraph and Telephone Corporation
Koki Hamada
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
COMBUSTION GAS BLEEDING PROBE AND METHOD FOR OPERATING SAME
Publication number
20250109065
Publication date
Apr 3, 2025
Taiheiyo Cement Corporation
Koki HAMADA
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
SECURE RANDOM NUMBER CALCULATION SYSTEM, SECURE RANDOM NUMBER CALCU...
Publication number
20250068394
Publication date
Feb 27, 2025
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE CLUSTER CALCULATION SYSTEM, SECURE CLUSTER CALCULATION APPAR...
Publication number
20250068756
Publication date
Feb 27, 2025
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CLUSTERING APPARATUS, CLUSTERING METHOD, AND PROGRAM
Publication number
20250053577
Publication date
Feb 13, 2025
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE GROUPING APPARATUS, SECURE GROUPING METHOD, AND PROGRAM
Publication number
20240403659
Publication date
Dec 5, 2024
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CUMULATIVE CALCULATION APPARATUS, CUMULATIVE CALCULATION METHOD, AN...
Publication number
20240281208
Publication date
Aug 22, 2024
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE CONSOLIDATION SYSTEM, INFORMATION PROCESSING APPARATUS, SECU...
Publication number
20240214212
Publication date
Jun 27, 2024
Nippon Telegraph and Telephone Corporation
Koki HAMADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECURE CONSOLIDATION SYSTEM, INFORMATION PROCESSING APPARATUS, SECU...
Publication number
20240214213
Publication date
Jun 27, 2024
Nippon Telegraph and Telephone Corporation
Koki HAMADA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SECURE SEARCH METHOD, SYSTEM THEREOF, APPARATUS THEREOF, ENCRYPTION...
Publication number
20240176903
Publication date
May 30, 2024
Nippon Telegraph and Telephone Corporation
Satoshi TAKAHASHI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE COMPUTATION SYSTEM, SECURE COMPUTATION APPARATUS, METHOD, AN...
Publication number
20240176908
Publication date
May 30, 2024
Nippon Telegraph and Telephone Corporation
Atsunori ICHIKAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET GROUPING APPARATUS, SECRET GROUPING SYSTEM, SECRET GROUPING...
Publication number
20230401263
Publication date
Dec 14, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET DECISION TREE LEARNING APPARATUS, SECRET DECISION TREE LEARN...
Publication number
20230376790
Publication date
Nov 23, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
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
SECRET DECISION TREE TEST APPARATUS, SECRET DECISION TREE TEST SYST...
Publication number
20230325304
Publication date
Oct 12, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET DECISION TREE TEST APPARATUS, SECRET DECISION TREE TEST SYST...
Publication number
20230273771
Publication date
Aug 31, 2023
Nippon Telegraph and Telephone Corporation
Koki HAMADA
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
SECRET MULTIPLE REPETITION CALCULATION APPARATUS, METHOD AND PROGRAM
Publication number
20220350638
Publication date
Nov 3, 2022
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
APPROXIMATE FUNCTION CALCULATION APPARATUS, METHOD AND PROGRAM
Publication number
20220335104
Publication date
Oct 20, 2022
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
DATA ACCESS METHOD, DATA STORAGE SYSTEM, SERVER APPARATUS, CLIENT A...
Publication number
20220329419
Publication date
Oct 13, 2022
Nippon Telegraph and Telephone Corporation
Atsunori ICHIKAWA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE GRADIENT DESCENT COMPUTATION METHOD, SECURE DEEP LEARNING ME...
Publication number
20220329408
Publication date
Oct 13, 2022
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE CONJUGATE GRADIENT METHOD COMPUTATION SYSTEM, SECURE COMPUTA...
Publication number
20220318338
Publication date
Oct 6, 2022
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECRET SOFTMAX FUNCTION CALCULATION SYSTEM, SECRET SOFTMAX CALCULAT...
Publication number
20220292362
Publication date
Sep 15, 2022
Nippon Telegraph and Telephone Corporation
Ibuki MISHINA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE DIVISION SYSTEM, SECURE COMPUTATION APPARATUS, SECURE DIVISI...
Publication number
20220224516
Publication date
Jul 14, 2022
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SECURE ARRAY ACCESS APPARATUS, SECURE ARRAY ACCESS METHOD, AND PROGRAM
Publication number
20220114110
Publication date
Apr 14, 2022
Nippon Telegraph and Telephone Corporation
Koki HAMADA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
ANALYSIS QUERY RESPONSE SYSTEM, ANALYSIS QUERY EXECUTION APPARATUS,...
Publication number
20220058290
Publication date
Feb 24, 2022
Nippon Telegraph and Telephone Corporation
Atsunori ICHIKAWA
G06 - COMPUTING CALCULATING COUNTING