Patent ID: 8426331

Claim:
A dielectric ceramic comprising an oxide of the following composition formula: αBaO.βNd 2 O 3 .γTiO 2 wherein 14≦α≦21, 4≦β≦21, 65≦γ≦75, and α+β+γ=100, and containing not less than 3 mass % nor more than 9 mass % of yttrium in terms of Y 2 O 3 , 0.5 mass % or less (except for 0 mass %) of manganese in terms of MnCO 3 , and not less than 0.25 mass % nor more than 1 mass % of aluminum in terms of Al 2 O 3 , and a crystal of Ba 4.5 Nd 9 Ti 18 O 54 .