Patent ID: 6521361
Filing Date: 2003-02-18
Classification: G11B

Abstract:
A magnetic recording medium comprising on a flexible nonmagnetic support, in order, a lower layer comprising a nonmagnetic powder and a binder, and a magnetic layer comprising a ferromagnetic powder and a binder, wherein an average thickness of said magnetic layer ranges from 0.02 &mgr;m to 0.2 &mgr;m; said ferromagnetic powder contained in said magnetic layer is a magnetic powder of platelike hexagonal ferrite with a mean plate diameter equal to or less than 40 nm; said nonmagnetic powder contained in said lower layer is an inorganic acicular powder with a mean major axis length equal to or less than 0.2 &mgr;m; and a plate ratio of said ferromagnetic powder is equal to or less than an acicular ratio of said inorganic powder of the lower layer.