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Chikako Tsuchiyama
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Method of information display and communication system using the me...
Patent number
7,010,569
Issue date
Mar 7, 2006
Hitachi, Ltd.
Satoe Okayasu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Digital signature or electronic seal authentication system and reco...
Publication number
20020129255
Publication date
Sep 12, 2002
Chikako Tsuchiyama
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Data display method and system
Publication number
20020002682
Publication date
Jan 3, 2002
Chikako Tsuchiyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of information display and communication system using the me...
Publication number
20010056468
Publication date
Dec 27, 2001
Satoe Okayasu
H04 - ELECTRIC COMMUNICATION TECHNIQUE