Patent ID: 8518292

Claim:
A method of manufacturing a piezoelectric ceramic comprising a perovskite-type metal oxide represented by the following general formula (1): x Bi(Mg 1/2 Ti 1/2 )O 3 -(1- x )BaTiO 3 (1) where x satisfies 0.2≦x≦0.7, the method comprising a sintering step of sintering powder of a metallic compound as a raw material of the piezoelectric ceramic, wherein the raw material contains powder of the metallic compound containing bismuth (Bi), titanium (Ti), and magnesium (Mg) and having an average grain size of 5 nm or larger to 50 nm or smaller, and powder of barium titanate having an average grain size of 10 nm or larger to 150 nm or smaller.