Patent ID: 7301714
Filing Date: 2007-11-27
Classification: G11B

Abstract:
1. A magnetic transfer method, comprising the steps of: placing a master carrier for magnetic transfer, bearing a transfer pattern corresponding to desired information thereon, and a discoid transfer medium in close contact to form a conjoined body; and applying a magnetic field to the conjoined body formed by the master carrier and the transfer medium, to transfer the transfer pattern onto a magnetic recording surface of the transfer medium; wherein: the applied magnetic field is of a greater intensity at an outer periphery than at an inner portion of the transfer medium, wherein: a magnetic field intensity Hin, of the magnetic field which is applied to an innermost track of the transfer medium, is within a range of Hc±39.8 kA/m, wherein Hc is the magnetic coercive force of the transfer medium, and wherein: a magnetic field intensity Hout, of the magnetic field which is applied to the outermost track of the transfer medium, a difference r between a radius r