Patent ID: 9338932
Filing Date: 2016-05-10
CPC Classification: C01G,C04B,H01F,H05K

Claim Text:
1. Magnetoplumbite-type hexagonal ferrite represented by a composition formula: A (1-X) B x C x (D1 y D2 y )Fe (12-x-2y) O 19 , x being 0.1 to 0.3 and y being 0.1 to 0.5, wherein, in the composition formula, A is any one of Ba 2+ , Sr 2+ and Ca 2+ , B is any one of La 3+ and Nd 3+ , C and D1 are any one or more of CO 2+ , Mn 2+ , Mg 2+ , Zn 2+ , Cu 2+ and Ni 2+ , and D2 is any one of Ti 4+ and Zr 4+ , and the ferrite has a coercive force of 100 Oe or less.