Patent ID: 8562851

Claim:
A ferrite material obtained by adding 0.06 to 0.50 parts by weight of bismuth oxide in terms of Bi 2 O 3 , 0.11 to 0.90 parts by weight of titanium oxide in terms of TiO 2 , and 0.06 to 0.46 parts by weight of barium oxide in terms of BaO as minor components to a ferrite powder containing iron oxide, copper oxide, zinc oxide, and nickel oxide as major components, wherein the major components contain 46.0 to 49.5 mol % of the iron oxide in terms of Fe 2 O 3 , 5.0 to 15.0 mol % of the copper oxide in terms of CuO, 3.0 to 30.0 mol % of the zinc oxide in terms of ZnO, and a remaining mol % of the nickel oxide in terms of NiO, and weight ratios of the bismuth oxide, the titanium oxide, and the barium oxide are such that using a proportion of the bismuth oxide as 1.00 in terms of Bi 2 O 3 , a proportion of the titanium oxide is 1.08 to 2.72 in terms of TiO 2 and a proportion of the barium oxide is 0.72 to 1.20 in terms of BaO.