Patent ID: 8043522
Filing Date: 2011-10-25
Classification: C04B,H01F,H01Q

Abstract:
1. A ferrite material having a composition formula of (1-x-y-z)(Li 0.5 Fe 0.5 )O.xZnO.y(Mn, Fe) 2 O 3 .zCuO, wherein x, y, z, and a satisfy 0.175≦x≦0.29; 0.475≦y≦0.51; 0.07≦z≦0.22; and 0.02≦a≦0.055 in a case of a=Mn/(Mn+Fe); wherein at least one of Co oxide, Co hydroxide and Co carbonate in an amount of 1 wt. % or less on the basis of CoO is contained in 100 wt. % of the ferrite material.