Patent ID: 9281125
Filing Date: 2016-03-08
CPC Classification: C04B,H01G

Claim Text:
1. A dielectric ceramic whose sintered grains constituting dielectric have an average grain size of 0.2 to 1.0 μm and an oxygen defect concentration of more than 0.2% but no more than 0.5%, wherein the dielectric contains barium titanate and an oxide of an acceptor element which includes one or more of non-rare earth elements selected from the group consisting of Sc, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mg, and Al, as well as one or more of rare earth elements selected from the group consisting of Dy, Ho, Er, Yb, and Lu, where all barium-containing titanate contained in the dielectric is represented by chemical formula Ba 1 Ti 1 O 3 , and the acceptor element is contained by p mol per 100 mol of Ba 1 Ti 1 O 3 , and p representing p mol number of the acceptor element is in a range of 0<p≦0.5.