Patent ID: 7892446
Filing Date: 2011-02-22
Classification: C04B,H01F

Abstract:
1. A ferrite material having a composition formula of x(Li 0.5 Fe 0.5 )O.yZnO.z(Mn, Fe) 2 O 3 , and wherein in a case of a=Mn/(Mn+Fe), Bi 2 O 3 is added from 0.2% by weight to 6% by weight, to a material in which x, y, z, and a in the composition formula and in the condition satisfy the following relations: 0.18≦x≦0.30, 0.20≦y≦0.30, 0.48≦z≦0.53, 0.01≦a≦0.25, and x+y+z=1.