Surface acoustic wave element and equipment for measuring characteristics of liquid material
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United States of America Patent
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Dec 4, 2012
Grant Date -
Sep 23, 2010
app pub date -
Nov 17, 2008
filing date -
Nov 20, 2007
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Abstract
A surface acoustic wave device having electrodes disposed on a piezoelectric substrate, comprising a sealing member having a peripheral wall disposed on the piezoelectric substrate in surrounding relation to the electrodes, and a top plate covering the peripheral wall; and a sealing stiffener disposed on the piezoelectric substrate in facing relation to a liquid material imposed on the piezoelectric substrate and which extends parallel to a portion of the peripheral wall.
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