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Yoshinao Kikuchi
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Authentication information generating system, authentication inform...
Patent number
8,953,805
Issue date
Feb 10, 2015
Nippon Telegraph and Telephone Corporation
Yukio Tsuruoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
User authentication system for providing online services based on t...
Patent number
7,861,288
Issue date
Dec 28, 2010
Nippon Telegraph and Telephone Corporation
Yukio Tsuruoka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
AUTHENTICATION INFORMATION GENERATING SYSTEM, AUTHENTICATION INFORM...
Publication number
20110069839
Publication date
Mar 24, 2011
Nippon Telegraph and Telephone Corporation
Yukio Tsuruoka
G06 - COMPUTING CALCULATING COUNTING