Inventor
KAWAHARA YUTO
JP13 patents
Patents
13 patentsUS11516195B2Nov 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
US11388001B2Jul 12, 2022
Encrypted communication device, encrypted communication system, encrypted communication method, 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
US11177949B2Nov 16, 2021
Data sharing method, data sharing system, data sharing server, communication terminal and program
NIPPON TELEGRAPH & TELEPHONE0 citations50
US11882208B2Jan 23, 2024
Chatbot system, information processing apparatus, information processing method and program
NIPPON TELEGRAPH & TELEPHONE0 citations45
US10673629B2Jun 2, 2020
Data transmission and reception method and system
NIPPON TELEGRAPH & TELEPHONE0 citations40
US10355856B2Jul 16, 2019
Key exchange method, key exchange system, key distribution device, communication device, and program
NIPPON TELEGRAPH & TELEPHONE0 citations39