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Haruhisa Otsuka
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Mobara, JP
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last 30 patents
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Patent Grant
Screen input type display device
Patent number
6,721,019
Issue date
Apr 13, 2004
Hitachi, Ltd.
Masao Kono
G06 - COMPUTING CALCULATING COUNTING
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last 30 patents
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Patent Application
Screen input type display device
Publication number
20010043291
Publication date
Nov 22, 2001
Masao Kono
G06 - COMPUTING CALCULATING COUNTING