ULTRASONIC GENERATOR AND ULTRASONIC CLEANSING APPARATUS
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United States of America Patent
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Issued Date -
Dec 1, 2011
app pub date -
Jan 22, 2010
filing date -
Jan 30, 2009
priority date (Note) -
Abandoned
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Abstract
for determining abnormality of the cleaning bath or the ultrasonic transducer by comparing the impedance to the signal computed by the impedance computing unit with a previously-set threshold for detecting an impedance abnormality.
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