Magnetic recording medium and magnetic recording apparatus
AssigneeMitsubishi Chemical Corporation
InventorHiroyuki Ikeda
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Abstract
A magnetic recording medium comprising a non-magnetic substrate and at least one magnetic recording layer formed on the substrate via at least one soft magnetic layer, wherein the surface roughness (Ra) of the magnetic recording medium is at most 50 Å, and the product (μmax×t) of the maximum permeability (μmax) and the thickness (t) of the soft magnetic layer is at least 1,000,000 (H·Å/m).
Claims14
A magnetic recording medium comprising a non-magnetic substrate and at least one magnetic recording layer formed on the substrate via at least one soft magnetic layer, wherein the surface roughness (Ra) of the magnetic recording medium is at most 50 Å, and the product (μmax×t) of the maximum permeability (μmax) and the thickness (t) of the soft magnetic layer is at least 1,000,000 (H·Å/m)
Dependencies are inferred from the claim text.