Inventor
FUJI HITOSHI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “FUJI HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
18 patentsUS7188366B2Mar 6, 2007
Distributed denial of service attack defense method and device
NIPPON TELEGRAPH & TELEPHONE37 citations91
US11516195B2Nov 29, 2022
Terminal device, key distribution management device, server-client system, communication method, and programs
NIPPON TELEGRAPH & TELEPHONE2 citations71
US12034862B2Jul 9, 2024
Anonymous broadcast method, key exchange method, anonymous broadcast system, key exchange system, communication device, and program
NIPPON TELEGRAPH & TELEPHONE0 citations60
US11985250B2May 14, 2024
Anonymous broadcast method, key exchange method, anonymous broadcast system, key exchange system, communication device, and program
NIPPON TELEGRAPH & TELEPHONE0 citations60
US11677543B2Jun 13, 2023
Key exchange method and key exchange system
NIPPON TELEGRAPH & TELEPHONE0 citations60
US11451518B2Sep 20, 2022
Communication device, server device, concealed communication system, methods for the same, and program
NIPPON TELEGRAPH & TELEPHONE1 citations60
US11258588B2Feb 22, 2022
Key exchange method and key exchange system
NIPPON TELEGRAPH & TELEPHONE0 citations60
US10630465B2Apr 21, 2020
Key exchange method, key exchange system, communication device and storage medium therefore
NIPPON TELEGRAPH & TELEPHONE2 citations60
US10218495B2Feb 26, 2019
Secure computation method, secure computation system, secure computation server, registrant terminal, user terminal and program
NIPPON TELEGRAPH & TELEPHONE1 citations56
US10979411B2Apr 13, 2021
Authentication control system, server apparatus, client apparatus, authentication control method, authentication method, and program
NIPPON TELEGRAPH & TELEPHONE0 citations51
US9735963B2Aug 15, 2017
Decryption service providing device, processing device, safety evaluation device, program, and recording medium
NIPPON TELEGRAPH & TELEPHONE0 citations51
US7636942B2Dec 22, 2009
Method and system for detecting denial-of-service attack
NIPPON TELEGRAPH & TELEPHONE1 citations51
US11880489B2Jan 23, 2024
Secret statistical processing systems, methods, statistical processing apparatus and program
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11336436B2May 17, 2022
Key distribution system and method, key generation apparatus, representative user terminal, server apparatus, user terminal, and program
NIPPON TELEGRAPH & TELEPHONE0 citations50
US10673629B2Jun 2, 2020
Data transmission and reception method and system
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10275960B2Apr 30, 2019
Security system, management apparatus, permission apparatus, terminal apparatus, security method and program
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10355856B2Jul 16, 2019
Key exchange method, key exchange system, key distribution device, communication device, and program
NIPPON TELEGRAPH & TELEPHONE0 citations39
US10546140B2Jan 28, 2020
Leakage prevention apparatus, leakage prevention method and program
NIPPON TELEGRAPH & TELEPHONE0 citations36