Patent ID: 6811855
Filing Date: 2004-11-02
Classification: G11B,Y10T

Abstract:
A magnetic recording medium comprising:a non-magnetic support; and a magnetic layer formed on or above the support, said magnetic layer comprising a ferromagnetic powder, a binder resin, an abrasive, and a fatty acid ester; the fatty acid ester being a fatty acid alkyl ester compound having an acid hydrolysis rate of 0.030 (1/hr) or less; and the abrasive present on the surface of the magnetic layer satisfying the relational expression: 0.01&lE;H15/H10&lE;0.20 where H10 denotes the number of particles per unit area having a height less than 10 nm (particles/&mgr;m2) and H15 denotes the number of particles per unit area having a height equal to or greater than 15 nm (particles/&mgr;m2).