Patent ID: 8012449

Claim:
A method of manufacturing a complex metal oxide powder, the method comprising: preparing a raw material composition for forming a complex metal oxide; mixing an oxidizing solution including an oxidizing substance into the raw material composition to produce complex metal oxide particles to obtain a liquid dispersion of the particles; and separating the particles from the liquid dispersion to obtain a complex metal oxide powder; the complex metal oxide being shown by a general formula AB 1−x C x O 3 , the element A including at least Pb, the element B including at least one of Zr, Ti, V, W, or Hf, and the element C including at least one of Nb or Ta; and the raw material composition including: at least one of a thermally-decomposable organometallic compound, a hydrolyzable organometallic compound or a partial hydrolyzate and/or a polycondensate of the hydrolyzable organometallic compound, at least one of the thermally-decomposable organometallic compound or the hydrolyzable organometallic compound including the element A and the element B or C; at least one of a polycarboxylic acid or a polycarboxylic acid ester; and an organic solvent, wherein the oxidizing solution is obtained by mixing a solution of an oxidizing substance and a solution of an alkaline substance.