Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
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United States of America Patent
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Apr 5, 2016
Grant Date -
Oct 17, 2013
app pub date -
Dec 22, 2011
filing date -
Dec 28, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25≦x≦0.75, y satisfies 0.15≦y≦0.70, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied.
First Claim
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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
- B41J:TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. M....
- H02N:ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
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