Patent ID: 8562852

Claim:
A piezoelectric ceramic comprising a complex oxide having the composition represented by formula (1), and Mn, wherein the Mn content with respect to the total amount of complex oxide is 0.2-1.2 mass % in terms of MnCO 3 , (Pb 1-a A 1 a )Ti x Zr 1-x-y-z-b (Zn 1/3 A 2 2/3 ) y (Yb 1/2 A 2 1/2 ) z Sn b O 3 (1) [In formula (1), A 1 represents at least one element selected from the group consisting of Ca, Sr and Ba, A 2 represents at least one element selected from the group consisting of Nb, Ta and Sb and includes at least Nb, and a, b, x, y and z are values satisfying formulas (1a), (1b), (1x), (1y) and (z), respectively,] 0≦ a≦ 0.04 (1a) 0≦ b≦ 0.04 (1b) 0.40≦ x≦ 0.49 (1x) 0.03≦ y≦ 0.15 (1y) 0.03≦ z≦ 0.15 (1z).