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Junichi TOMIDA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Key exchange system, method and program for generating a shared key...
Patent number
11,909,867
Issue date
Feb 20, 2024
Nippon Telegraph and Telephone Corporation
Junichi Tomida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key exchange system, communication apparatus, key exchange method a...
Patent number
11,902,428
Issue date
Feb 13, 2024
Nippon Telegraph and Telephone Corporation
Junichi Tomida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cipher system, encryption apparatus, decryption apparatus, cipher m...
Patent number
11,757,620
Issue date
Sep 12, 2023
Nippon Telegraph and Telephone Corporation
Junichi Tomida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Decryption device, encryption device, and cryptographic system
Patent number
11,533,176
Issue date
Dec 20, 2022
Mitsubishi Electric Corporation
Katsuyuki Takashima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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
CYPHER SYSTEM, METHOD AND PROGRAM
Publication number
20230291553
Publication date
Sep 14, 2023
Nippon Telegraph and Telephone Corporation
Junichi TOMIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CYPHER SYSTEM, KEY GENERATION APPARATUS, ENCRYPTION APPARATUS, DECR...
Publication number
20220376901
Publication date
Nov 24, 2022
Nippon Telegraph and Telephone Corporation
Junichi TOMIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE SYSTEM, COMMUNICATION APPARATUS, KEY EXCHANGE METHOD A...
Publication number
20220303124
Publication date
Sep 22, 2022
Nippon Telegraph and Telephone Corporation
Junichi TOMIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE SYSTEM, COMMUNICATION APPARATUS, KEY EXCHANGE METHOD A...
Publication number
20220224520
Publication date
Jul 14, 2022
Nippon Telegraph and Telephone Corporation
Junichi TOMIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CIPHER SYSTEM, ENCRYPTION APPARATUS, DECRYPTION APPARATUS, CIPHER M...
Publication number
20220140998
Publication date
May 5, 2022
Nippon Telegraph and Telephone Corporation
Junichi TOMIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DECRYPTION DEVICE, ENCRYPTION DEVICE, AND CRYPTOGRAPHIC SYSTEM
Publication number
20210036852
Publication date
Feb 4, 2021
Mitsubishi Electric Corporation
Katsuyuki TAKASHIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE