Patent ID: 7580242

Claim:
A dielectric ceramic composition comprising Ba m TiO 2+m wherein “m” satisfies 0.99≦m≦1.01, Ba n ZrO 2+n wherein “n” satisfies 0.99≦n≦1.01, an oxide of Mg, an oxide of R wherein R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, an oxide of at least one element selected from Mn, Cr, Co and Fe, and an oxide of at least one element selected from Si, Li, Al, Ge and B; wherein a ratio of each component, calculated as a conversion of an oxide or composite oxide, with respect to 100 moles of said Ba m TiO 2+m is Ba n ZrO 2+n : 35 to 65 moles, an oxide of Mg: 4 to 12 moles, an oxide of R: 4 to 15 moles, an oxide of Mn, Cr, Co and Fe: 0.5 to 3 moles, and an oxide of Si, Li, Al, Ge and B: 3 to 9 moles.