Patent ID: 7476482
Filing Date: 2009-01-13
Classification: C01G,C01P,C04B,G03G,H01F

Abstract:
1. An Mg-based ferrite material consisting essentially of X 2 O n , MgO and Fe 2 O 3 components or of X 2 O n , CaO, MgO and Fe 2 O 3 components, and having a composition of formula (1): wherein X is Li, Na, K, Rb, Cs, Sr, Ba, Y, La, Ti, Zr, Hf, V, Nb, Ta, Al, Ga, Si, Ge, P, Sb, Bi or a combination thereof; and a, b, c and d satisfy wherein wherein the Mg-based ferrite material has a saturation magnetization in the range of 30-80 emu/g measured at 14 kOe using a vibrating sample magnetometer.