US Patent 7193617 Acoustic contact detecting device
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Patent abstract
An object of the present invention is to provide a coordinate input device of touch-type capable of giving an electric signal to a transducer, even if a piezoelectric vibrator having electrodes on both surfaces thereof is employed.
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US Patent 07193617 Acoustic contact detecting device US Patent 7193617 Acoustic contact detecting device
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Patent Number
0719361700
Patent Number
719361700
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Patent Jurisdiction
Patent Number
071936170
Date of Patent
March 20, 2007
0Patent Application Number
100191900
Date Filed
June 29, 2000
0Official Website
Patent Primary Examiner
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Patent Jurisdiction
Patent Number
071936170
Date of Patent
March 20, 2007
0Patent Application Number
100191900
Date Filed
June 29, 2000
0Official Website
Patent Primary Examiner
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US Patent 07193617 Acoustic contact detecting device
Infobox
Is a
Patent jurisdiction
Patent number
07193617
Date of patent
March 20, 2007
Patent application number
10019190
Date Filed
June 29, 2000
Patent primary examiner
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