Oriented piezoelectric ceramic, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
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United States of America Patent
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Sep 29, 2015
Grant Date -
Jun 5, 2014
app pub date -
May 28, 2012
filing date -
May 31, 2011
priority date (Note) -
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Abstract
Provided is an oriented piezoelectric ceramic of satisfactory piezoelectricity, which includes a metal oxide represented by (1−x)NaNbO3-xBaTiO3. Also provided are a piezoelectric element using the oriented piezoelectric ceramic which includes the metal oxide represented by (1−x)NaNbO3-xBaTiO3, and a liquid discharge head, an ultrasonic motor, and a dust removing device which use the piezoelectric element. An oriented piezoelectric ceramic includes as a main component a metal oxide represented by the following general formula (1), in which the oriented piezoelectric ceramic has a lead content and a potassium content that are each 1,000 ppm or less: (1−x)NaNbO3-xBaTiO3 . . . General formula (1), where a relationship of 0
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