Patent ID: 8107220

Claim:
A laminated ceramic capacitor comprising: a plurality of laminated dielectric ceramic layers; and a pair of internal electrodes between different adjacent interfaces between the dielectric ceramic layers, wherein the dielectric ceramic layers comprise a dielectric ceramic containing a perovskite-type compound represented by ABO 3 in which A is Ba and optionally also contains at least one of Ca and Sr, and B is Ti and optionally contains at least one of Zr and Hf as a main ingredient, and R, M (and Si as accessory ingredients in which R is at least one member selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu and Y) and M is at least one member selected from the group consisting of Mn, Ni, Co, Fe, Cr, Cu, Mg, Li, Al, Mo, W and V, and wherein when the crystal grains contained in the dielectric ceramic are classified into first crystal grains having grain sizes larger than one-fourth of the thickness of the dielectric ceramic layer and second crystal grains having grain sizes not larger than one-fourth of the thickness of the dielectric ceramic layer, each of the first crystal grains and the second crystal grains have a peak of grain size distribution, and the areal percentage of the first crystal grains on a cross section of the dielectric ceramic layer is 41 to 69%.