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Kazuki YONEYAMA
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Ibaraki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Anonymous broadcast method, key exchange method, anonymous broadcas...
Patent number
11,985,250
Issue date
May 14, 2024
Nippon Telegraph and Telephone Corporation
Reo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key exchange method and key exchange system
Patent number
11,677,543
Issue date
Jun 13, 2023
Nippon Telegraph and Telephone Corporation
Reo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication device, server device, concealed communication system...
Patent number
11,451,518
Issue date
Sep 20, 2022
Nippon Telegraph and Telephone Corporation
Tetsutaro Kobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key distribution system and method, key generation apparatus, repre...
Patent number
11,336,436
Issue date
May 17, 2022
Nippon Telegraph and Telephone Corporation
Reo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key exchange method and key exchange system
Patent number
11,258,588
Issue date
Feb 22, 2022
Nippon Telegraph and Telephone Corporation
Reo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key exchange method, key exchange system, communication device and...
Patent number
10,630,465
Issue date
Apr 21, 2020
Nippon Telegraph and Telephone Corporation
Tetsutaro Kobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key exchange method, key exchange system, key distribution device,...
Patent number
10,355,856
Issue date
Jul 16, 2019
Nippon Telegraph and Telephone Corporation
Reo Yoshida
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
ANONYMOUS BROADCAST METHOD, KEY EXCHANGE METHOD, ANONYMOUS BROADCAS...
Publication number
20220337428
Publication date
Oct 20, 2022
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE METHOD AND KEY EXCHANGE SYSTEM
Publication number
20210314146
Publication date
Oct 7, 2021
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
COMMUNICATION DEVICE, SERVER DEVICE, CONCEALED COMMUNICATION SYSTEM...
Publication number
20210126906
Publication date
Apr 29, 2021
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Tetsutaro KOBAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ANONYMOUS BROADCAST METHOD, KEY EXCHANGE METHOD, ANONYMOUS BROADCAS...
Publication number
20200358622
Publication date
Nov 12, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE METHOD AND KEY EXCHANGE SYSTEM
Publication number
20200252208
Publication date
Aug 6, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY DISTRIBUTION SYSTEM AND METHOD, KEY GENERATION APPARATUS, REPRE...
Publication number
20200136813
Publication date
Apr 30, 2020
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE METHOD, KEY EXCHANGE SYSTEM, KEY DISTRIBUTION DEVICE,...
Publication number
20180183583
Publication date
Jun 28, 2018
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Reo YOSHIDA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
KEY EXCHANGE METHOD AND KEY EXCHANGE SYSTEM
Publication number
20170302445
Publication date
Oct 19, 2017
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Tetsutaro KOBAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE