Patent ID: 8841225

Claim:
A dielectric ceramic comprising a sintered body including BaTiO 3 based ceramic grains as main phase grains, wherein the ceramic grains each include a shell part as a surface layer part and a core part inside the shell part, the ceramic grains contain, as accessory constituents, R and M, R is at least one rare-earth element selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Y, M is at least one element selected from the group consisting of Mg, Mn, Ni, Co, Fe, Cr, Cu, Al, Mo, W, and V, the R and the M are present in the shell part of the ceramic grain, concentrations of the R and the M contained in the shell part increase from a grain boundary toward the core part, a concentration of the R at the grain boundary<a concentration of the R at a core-shell boundary, and a concentration of the M at the grain boundary<a concentration of the M at the core-shell boundary.