Patent ID: 9324933
Filing Date: 2016-04-26
CPC Classification: B41J,C04B,G01H,H01L,H02N

Claim Text:
1. A piezoelectric material containing: a first component that is a rhombohedral crystal and that has a complex oxide with a perovskite structure and Curie temperature Tc1; a second component that is a crystal other than a rhombohedral crystal and has a complex oxide with the perovskite structure and Curie temperature Tc2; and a third component that is a rhombohedral crystal and has a complex oxide with the perovskite structure and Curie temperature Tc3, the third component being different from the first component, wherein Tc2 is higher than Tc1, Tc3 is equal to or higher than Tc2, and a value of (0.1×Tc1+0.9×Tc2) is equal to or lower than 280° C.