Patent ID: 6906877
Filing Date: 2005-06-14
Classification: G11B

Abstract:
1. A magnetic transfer method comprising the steps of: providing (i) a high-density magnetic recording medium comprising a substrate and a magnetic recording layer, said magnetic recording layer comprising a first magnetic layer, a nonmagnetic coupling layer and a second magnetic layer which are stacked in an order of the first magnetic layer, the nonmagnetic coupling layer and the second magnetic layer, on the substrate, said first magnetic layer and said second magnetic layer having been previously magnetized uniformly in mutually antiparallel directions, and ii) a magnetic master medium having a magnetic layer which is formed in a pattern corresponding to data to be transferred to the magnetic recording layer of the magnetic recording medium, and applying a transfer magnetic field to the magnetic recording medium and the magnetic master medium in a direction opposite to the direction in which the second magnetic layer has been magnetized while the magnetic recording medium and the magnetic master medium are positioned so that the magnetic recording layer of the magnetic recording medium faces the magnetic layer of the magnetic master medium to effect magnetic transfer of said pattern.