Patent ID: 6909634
Filing Date: 2005-06-21
Classification: B82Y,G11B

Abstract:
1. A process of producing a magnetic recording medium having data recorded thereon, comprising the steps of: preparing a magnetic transfer master medium comprising a non-magnetic substrate having a surface with protrusion portions and depression portions corresponding to said data; preparing a slave medium comprising a non-magnetic support having a magnetic recording layer thereon; initially magnetizing said magnetic recording layer of said slave medium in a predetermined direction; bringing said surface of said master medium into intimate contact with said magnetic recording layer of said slave medium at a predetermined pressure to form a conjoined body; and applying a transfer magnetic field to said conjoined body in a direction opposite from said predetermined direction; wherein the substrate of the master carrier has a Young's modulus E (GPa) of 85 to 250, and an expression 2≦αEd