Abstract: A dielectric ceramic composition is represented by BaTiO3+aRe2O3+bMnO+cV2O5+dMoO3+eCuO+fB2O3+gLi2O+xSrO+yCaO (wherein Re represents one or more elements selected from among Eu, Gd, Dy, Ho, Er, Yb, and Y; and a-h each represents the mole number of each component with respect to 100 mol of the main component that is composed of BaTiO3). When the molar ratio of (Ba+Sr+Ca)/Ti contained in the dielectric ceramic composition is represented by m, the 0.10?a?0.50, 0.20?b?0.80, 0?c?0.12, 0?d?0.07, 0.04?c+d?0.12, 0?e?1.00, 0.50?f?2.00, 0.6?(100(m?1)+2g)/2f?1.3, and 0.5?100(m?1)/2g?5.1 are satisfied.

Abstract: A multilayer ceramic capacitor uses internal electrodes which are embedded between the dielectric layers and whose primary constituent is Cu, wherein, when the composition of the dielectric layer is expressed by 100CaxZrO3+aMnO2+bLiO1/2+cBO3/2+dSiO2+eAlO3/2, the contents of the respective constituents are 1.5?a?4.5 mol, 0.8?b/(c+d)?2.0, 0.9?d/c?1.5, and 0?e?0.3 mol relative to 100 mol of CaxZrO3 (where 1.005?x?1.06) and the relationship of (b+c+d) and x meets the ranges shown in the table below. The multilayer ceramic capacitor offers a low specific dielectric constant, low temperature coefficient of volume and excellent longevity traits. b + c + d Lower limit of x Upper limit of x 10 1.005 1.03 14.9 1.02 1.

Abstract: A laminated ceramic capacitor includes multiple dielectric layers, internal electrodes having Cu as the primary component and embedded between the dielectric layers, and external electrodes. The dielectric layers contain a primary component comprised of a CaZrO3 compound and auxiliary components that include Mn, B, Si, and Li wherein a primary phase comprised of the primary component, segregation phases containing Ca and at least one of the auxiliary components, and secondary phases containing at last Ca and Zr are formed. The ratio of Ca to Zr in the secondary phases is smaller than the ratio of Ca to Zr in the primary phase, and the number of secondary phases with a diameter of 100 nm or greater in a cross section of the dielectric layers averages 30 or less per 10 square ?m.

Abstract: A multi-layer ceramic capacitor capable of being sintered at 1,080° C. or lower in a reducing atmosphere, having a permittivity of 2,000 or more, a temperature characteristic of X7R characteristic or X8R characteristic, and favorable life time property, in which the internal electrodes are formed of Cu or a Cu alloy, the dielectric ceramics are constituted with grains each of an average value for the diameter of 400 nm or less as viewed on the cross section and grain boundaries, the grain comprises a dielectric substance having a domain pattern and shells formed on the surface of the dielectric substance and with t/D from 2% to 10% where D represents an average value for the diameter of the grains as viewed on the cross section and t represents the average value for the thickness of the shells.

Abstract: A multi-layer ceramic capacitor includes a plurality of dielectric ceramic layers; internal electrodes formed between the dielectric ceramic layers; and end termination electrodes electrically connected to the internal electrodes, wherein the dielectric ceramic layer is a sintered body constituted of a primary component that, when it is expressed by ABO3+aRe2O3+bMnO, satisfies 1.000?A/B?1.035, 0.05?a?0.75 and 0.25?b?2.0; and a subcomponent that includes at least one kind of B, Li or S in the range of 0.16 to 1.6 parts by mass in total in terms of B2O3, Li2O and SiO2; and the internal electrode is constituted of Cu or a Cu alloy.

Abstract: A multi-layer ceramic capacitor capable of being sintered at 1,080° C. or lower in a reducing atmosphere, having a permittivity of 2,000 or more, a temperature characteristic of X7R characteristic or X8R characteristic, and favorable life time property, in which the internal electrodes are formed of Cu or a Cu alloy, the dielectric ceramics are constituted with grains each of an average value for the diameter of 400 nm or less as viewed on the cross section and grain boundaries, the grain comprises a dielectric substance having a domain pattern and shells formed on the surface of the dielectric substance and with t/D from 2% to 10% where D represents an average value for the diameter of the grains as viewed on the cross section and t represents the average value for the thickness of the shells.

Abstract: A multi-layer ceramic capacitor includes a plurality of dielectric ceramic layers; internal electrodes formed between the dielectric ceramic layers; and end termination electrodes electrically connected to the internal electrodes, wherein the dielectric ceramic layer is a sintered body constituted of a primary component that, when it is expressed by ABO3+aRe2O3+bMnO, satisfies 1.000?A/B?1.035, 0.05?a?0.75 and 0.25?b?2.0; and a subcomponent that includes at least one kind of B, Li or S in the range of 0.16 to 1.6 parts by mass in total in terms of B2O3, Li2O and SiO2; and the internal electrode is constituted of Cu or a Cu alloy.

Abstract: One inventive aspect provides a dielectric porcelain having a high permittivity and a producing method therefor, by sintering a perovskite type oxide at a low temperature, utilizing a sintering additive in an amount less than in the related technology. One embodiment provides a dielectric porcelain including, after sintering, a perovskite type oxide as a principal component and a sintering additive, wherein the sintering additive has such a property that a densification temperature becomes lower along with an increase in a content thereof above a boundary content and becomes lower and then higher along with a decrease in the content thereof below the boundary content, and the content of the sintering additive is less than the boundary content and is in a region where the densification temperature is low. Another embodiment provides a producing method for such dielectric porcelain, including addition of a sintering additive in such amount.