MAGNETIC RECORDING MEDIUM

摘要

PURPOSE:To secure the durability necessary for reduction of a filler amount with reduction of noises produced the recording reproducing mode and to attain the recording with high density, by setting the specific relation between the minimum floating degree of a head and the projecting height of the inorganic grain powder of high hardness over the flat surface of a magnetic recording medium. CONSTITUTION:A magnetic disk 2 contains a magnetic film 3 formed on a magnetic disk substrate 5. The inorganic fine grain powder filler 4 having high hardness is mixed into the film 3 and the minimum floating height of a magnetic head 1 caused by the revolution of the disk 2 is set at (h). While the projecting height of the filler 4 is set at T over the flat part of the film 3. This height T is controlled optionally within a range 0