Piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device

A piezoelectric element having an improved piezoelectric constant is provided, and a liquid discharge head, an ultrasonic motor, and a dust removing device, each of which uses the above piezoelectric element, are also provided. A piezoelectric element at least includes a pair of electrodes and a pie...

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Bibliographische Detailangaben
Hauptverfasser:	Shimada Mikio, Aiba Toshiaki, Watanabe Takayuki, Matsuda Takanori, Ifuku Toshihiro
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY CLEANING CLEANING IN GENERAL COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CORRECTION OF TYPOGRAPHICAL ERRORS ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LIME, MAGNESIA LINING MACHINES METALLURGY PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL PRINTING REFRACTORIES SELECTIVE PRINTING MECHANISMS SEMICONDUCTOR DEVICES SLAG STAMPS TRANSPORTING TREATMENT OF NATURAL STONE TYPEWRITERS
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Beschreibung
Zusammenfassung:	A piezoelectric element having an improved piezoelectric constant is provided, and a liquid discharge head, an ultrasonic motor, and a dust removing device, each of which uses the above piezoelectric element, are also provided. A piezoelectric element at least includes a pair of electrodes and a piezoelectric material provided in contact with the pair of electrodes, the piezoelectric material is formed of an aggregate of crystal grains containing barium titanate as a primary component, and among the crystal grains of the aggregate, crystal grains at least in contact with the electrodes have dislocation layers in the grains. A liquid discharge head, an ultrasonic motor, and a dust removing device each use the above piezoelectric element.