发明名称 Contact printing of longitudinal magnetic media with perpendicularly applied magnetic field
摘要 A method of forming a magnetic transition pattern in a longitudinal magnetic recording medium, comprising steps of: (a) providing a magnetic recording medium including a layer of a magnetic material having a surface comprised of a plurality of longitudinally extending magnetic domains; (b) contacting the surface of the layer of magnetic material with a topographically patterned imprinting surface of a stamper/imprinter formed of at least one high saturation magnetization, high permeability magnetic material; and (c) applying a unidirectional magnetic field perpendicular to the imprinting surface of the stamper/imprinter, the perpendicular magnetic field creating a longitudinal magnetic field component of sufficient strength to effect selective alignment of the magnetic domains of those portions of the layer of magnetic material which face the depressions of the imprinting surface while retaining the alignment of the magnetic domains of those portions of the layer of magnetic material which face the projections of the imprinting surface, the combination of portions forming a magnetic transition pattern replicating the topographical pattern of the imprinting surface.
申请公布号 US2004209185(A1) 申请公布日期 2004.10.21
申请号 US20030418124 申请日期 2003.04.18
申请人 SEAGATE TECHNOLOGY LLC 发明人 WAGO KOICHI;LEE SHIH-FU;WANG LI-PING;LEIGH JOSEPH
分类号 G11B5/00;G11B5/74;G11B5/855;G11B5/86;(IPC1-7):G03C1/76 主分类号 G11B5/00
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