Patent ID: 7998362
Filing Date: 2011-08-16
Classification: B41J,H01L

Abstract:
1. A piezoelectric substance, wherein a main component of the piezoelectric substance is PZT which has a perovskite type structure expressed as Pb(Zr x Ti 1-x )O 3 , x expresses an element ratio Zr/(Zr+Ti) of Zr and Ti in the formula, an element ratio Pb/(Zr+Ti) of Pb, Zr and Ti of the piezoelectric substance is 1.05 or more, an element ratio Zr/(Zr+Ti) of Zr and Ti is 0.2 to 0.8 inclusive, and a Curie temperature Tc of the piezoelectric substance and a Curie temperature Tc