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发明授权
US09425380B2 Piezoelectric element, multilayered piezoelectric element, liquid discharge head, liquid discharge apparatus, ultrasonic motor, optical apparatus, and electronic apparatus 有权
压电元件，多层压电元件，液体排出头，液体排出装置，超声波马达，光学装置和电子设备

Piezoelectric element, multilayered piezoelectric element, liquid discharge head, liquid discharge apparatus, ultrasonic motor, optical apparatus, and electronic apparatus
摘要：
A lead-free piezoelectric element that stably operates in a wide operating temperature range contains a lead-free piezoelectric material. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric material that includes a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (1.00≦a≦1.01, 0.02≦x≦0.30, 0.020≦y≦0.095, and y≦x) as a main component and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.02 parts by weight or more and 0.40 parts by weight or less on a metal basis.
摘要（中）：

在宽工作温度范围内稳定工作的无铅压电元件包含无铅压电材料。 压电元件包括​​第一电极，第二电极和压电材料，其包括由（Ba1-xCax）a（Ti1-yZry）O3（1.00≤a≤1.01,0.02≤x≤0.30）表示的钙钛矿型金属氧化物 ，0.020≤y≤0.095，y≤x）作为主要成分，掺入钙钛矿型金属氧化物中的锰。 相对于100重量份的钙钛矿型金属氧化物的锰含量为0.02重量份以上且0.40重量份以下。

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