Patent ID: 8367206

Claim:
A barium titanate based powder represented by Chemical Formula 1: (Ba x R 1 r1 R 2 r2 )(Ti y R 3 r3 R 4 r4 )O 3 [Chemical Formula 1] wherein R 1 is at least one element selected from the group consisting of yttrium (Y) and lanthanoids; R 2 is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca) and strontium (Sr); R 3 includes phosphorus (P) and niobium (Nb); R 4 is at least one element selected from the group consisting of aluminum (Al), vanadium (V), chrome (Cr), manganese (Mn), cobalt (Co), zirconium (Zr) and tantalum (Ta); r 1 and r 3 independently represent a real number greater than 0 and equal to or less than 0.05; r 2 and r 4 independently represent a real number greater than 0 and equal to or less than 0.1; and (x+r 1 +r 2 )/(y+r 3 +r 4 ) is a real number ranging from 0.85 to 1.15.