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    • 3. 发明授权
    • Contact printing of longitudinal magnetic media with perpendicularly applied magnetic field
    • 用垂直磁场接触纵向磁性介质的印刷
    • US06979524B2
    • 2005-12-27
    • US10418124
    • 2003-04-18
    • Koichi WagoShih-Fu LeeLi-Ping WangJoseph Leigh
    • Koichi WagoShih-Fu LeeLi-Ping WangJoseph Leigh
    • G11B5/00G11B5/74G11B5/855G11B5/86G11B5/03
    • B82Y10/00G11B5/74G11B5/743G11B5/855G11B5/865G11B2005/001Y10S428/90Y10T428/24248
    • 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.
    • 一种在纵向磁记录介质中形成磁转移图案的方法,包括以下步骤:(a)提供包括具有由多个纵向延伸磁畴构成的表面的磁性材料层的磁记录介质; (b)使磁性材料层的表面与由至少一种高饱和磁化强度高磁导率磁性材料形成的压模/冲击器的地形图案化压印表面接触; 并且(c)施加垂直于压模/冲压机的压印表面的单向磁场,垂直磁场产生足够强度的纵向磁场分量,以实现磁性材料层那些部分的磁畴的选择性对准 其面对压印表面的凹陷,同时保持面向压印表面的突起的磁性材料层的这些部分的磁畴的对准,形成复制印记的形貌图案的磁过渡图案的部分的组合 表面。
    • 7. 发明申请
    • Polarization state detector systems and methods for read-out of multilevel oriented nano-structure optical media
    • 极化状态检测器系统和读取多层导向纳米结构光学介质的方法
    • US20070206480A1
    • 2007-09-06
    • US11366569
    • 2006-03-03
    • David KuoNeil DeemanShih-Fu LeeKoichi Wago
    • David KuoNeil DeemanShih-Fu LeeKoichi Wago
    • G11B7/00
    • G11B7/1398G11B7/131G11B7/1395G11B7/24088
    • A polarization detection system structured for optical read-out of disc-shaped optical data/information storage and retrieval media with surfaces comprised of pits or marks configured as multilevel oriented nano-structures (ONS) with varying pit or mark orientations and widths. The polarization detection system comprises: an optical beam source; a stage for mounting and rotating an optical disc medium about a central axis; at least one photodetector; a beam splitter positioned in an optical path between the source and stage, for directing an incident beam from the source onto an optical disc mounted on the stage and a return beam from the disc onto the photodetector; and an optical polarizer positioned in an optical path between the beam splitter and the at least one photodetector, for detection and analysis of changes in polarization of the return beam effected by variation of the orientation of the walls and/or widths of the pits or marks of the disc.
    • 一种偏振检测系统,其被构造用于光学读出盘形光学数据/信息存储和回收介质,其表面包括由具有不同凹坑或标记取向和宽度的多层定向纳米结构(ONS)构成的凹坑或标记。 偏振检测系统包括:光束源; 用于围绕中心轴线安装和旋转光盘介质的台架; 至少一个光电检测器; 位于源极和级之间的光路中的分束器,用于将来自源的入射光束引导到安装在平台上的光盘上,以及从光盘到光电检测器的返回光束; 以及位于分束器和至少一个光电检测器之间的光路中的光学偏振器,用于检测和分析通过壁的取向的变化和/或凹坑或标记的宽度来实现的返回光束的偏振变化 的光盘。