Patent ID: 6025082
Filing Date: 2000-02-15
Classification: G11B,Y10S,Y10T

Abstract:
A magnetic recording medium, comprising:a support;at least one lower layer disposed over the support, the lower layer formed from a coating solution comprising a non-magnetic inorganic powder dispersed in a binder;at least one upper magnetic layer formed over the lower layer from a coating solution comprising a ferromagnetic powder dispersed in a binder, said upper magnetic layer having a thickness (d) of 1.0 .mu.m or less and said ferromagnetic powder in the upper magnetic layer having a crystallite size of from 100 to 450 .ANG. and said upper magnetic layer having a coercive force (Hc) of from 1,200 to 3,000 Oe and a maximum magnetic flux density (Bm) of from 2,100 to 4,500 gauss.