Patent ID: 7618910

Claim:
A production method of a dielectric ceramic composition, comprising a main component comprised of barium titanate, a fourth subcomponent comprised of an oxide of R1, where R1 is at least one selected from the group consisting of Y, Ho, Er, Tm, Yb and Lu; and a fifth subcomponent comprised of an oxide of R2, where R2 is at least one selected from the group consisting of Dy, Tb, Gd and Eu; comprising the steps of obtaining a post-reaction material by making a material of said main component react with a part of a material of said fourth subcomponent and/or a part of a material of said fifth subcomponent to be included in said dielectric ceramic composition; and adding remaining materials of said fourth subcomponent and said fifth subcomponent to be included in said dielectric ceramic composition to said post-reaction material; wherein a ratio M1/M2 of the number of moles M1 of R1 of said fourth subcomponent to the number of moles M2 of R2 of said fifth subcomponent in said finally obtained dielectric ceramic composition satisfies 4<M1/M2≦100, and in said step for obtaining the post-reaction material, said fourth subcomponent and/or said fifth subcomponent made to react with a material of said main component is more than 0 to less than 0.5 mole when calculated as a conversion of R1 and/or R2 with respect to 100 moles of said main component.