Patent ID: 6949487

Claim:
A dielectric ceramic composition comprising: an oxide containing barium (Ba), titanium (Ti) and oxygen (O), and having a composition formula represented as BaTi x O 2x+1 (3.5≦x≦5.0); a first chemical element group consisting of at least one kind of alkaline-earth metals, silicon (Si), zinc (Zn), aluminium (Al), titanium, copper (Cu), bismuth (Bi) and molybdenum (Mo); and a second chemical element group consisting of at least one kind of alkali metals and boron (B), a weight ratio of a total of respective chemical elements in the first and second chemical element groups to the oxide (the total of respective chemical elements/the oxide) being between 45/55 and 65/35 inclusive when the ratio is determined by converting said respective chemical elements to their oxides, a weight ratio of the second chemical element group to the first chemical element group (the second chemical element group/the first chemical element group) being between 0.01 and 0.10 inclusive when the ratio is determined by converting said respective chemical elements to their oxides.