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Hajime Takayama
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Rewritable bar code display medium, and image display method and im...
Patent number
5,521,371
Issue date
May 28, 1996
Ricoh Company, Ltd.
Yoshihiko Hotta
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Rewritable bar code display medium, and image display method and im...
Patent number
5,298,476
Issue date
Mar 29, 1994
Ricoh Company, Ltd.
Yoshihiko Hotta
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
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Patent Application
COMMUNICATION DEVICE, CONTROL METHOD FOR COMMUNICATION DEVICE, AND...
Publication number
20100281185
Publication date
Nov 4, 2010
Hajime TAKAYAMA
G06 - COMPUTING CALCULATING COUNTING