Patent ID: 6979410

Claim:
A piezoelectric ceramic, comprising: an oxide represented by Chemical Formula 1: Pb A [(Mg 1/3 Nb 2/3 ) a (Zn 1/3 Nb 2/3 ) b Ti c Zr d ]O 3 as a main component, wherein the values of A, a, b, c and d satisfy each of a+b+c+d=1, 0.99≦A≦1.01, 0.15≦a+b≦0.5, 0.05≦b≦0.25, 0.2≦c≦0.5, and 0.15≦d≦0.6; and 0.01 mass % to 0.8 mass % inclusive of at least one kind selected from the group consisting of iron (Fe) and nickel (Ni) in the form of oxide (Fe 2 O 3 , NiO) per 1 mol of the main component as a first sub-component.