Patent ID: 7274626
Filing Date: 2007-09-25
Classification: G11B,Y10T

Abstract:
1. A magnetic disk recording apparatus comprising a magnetic recording medium for thermo-magnetic printing, a recording head having a magnetic recording device applying a recording field, and heating means heating the magnetic recording medium for thermo-magnetic printing, wherein said magnetic recording medium for thermo-magnetic printing has a substrate, a first recording layer, a second recording layer formed between said first recording layer and said substrate, and an intermediate layer formed between said first recording layer and said second recording layer, said second recording layer having magnetic anisotropy or coercivity larger than that of said first recording layer at ambient temperature Ta and having magnetic anisotropy or coercivity smaller than that of said first recording layer at temperature Tw set to be higher than the ambient temperature Ta, wherein said heating means is arranged on the trailing side of said magnetic recording device, wherein after a recording field is applied from said magnetic recording device to form a magnetization pattern on said first recording layer, the magnetization pattern of said first recording layer heated by said heating means is printed onto said second recording layer and wherein said second recording layer contains a ferrimagnetic substance having a compensation temperature Temp below the ambient temperature Ta.