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    High field contrast magnetic stampers/imprinters for contact patterning of magnetic media
    1.
    发明授权
    High field contrast magnetic stampers/imprinters for contact patterning of magnetic media 失效
    用于磁介质接触图形化的高场对比磁压模/打印机

    公开(公告)号：US07028743B1

    公开(公告)日：2006-04-18

    申请号：US10429799

    申请日：2003-05-06

    申请人： Li-Ping Wang ,  David Kuo ,  Jing Gui ,  Koichi Wago

    发明人： Li-Ping Wang ,  David Kuo ,  Jing Gui ,  Koichi Wago

    IPC分类号： B22D23/00 ,  B22D25/00

    CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B11/10578 ,  G11B11/10582 ,  H01F41/32

    摘要： A high field contrast magnetic stamper/imprinter for use in patterning of magnetic and magneto-optical (MO) recording media by contact printing, comprises: (a) a layer of a magnetic material having a high saturation magnetization Bsat≧˜1.2 and high permeability μ≧˜5, including a first, topographically patterned surface and a second surface opposite the first surface, the first, topographically patterned surface comprising a patterned plurality of spaced-apart recesses with a plurality of non-recessed areas therebetween, the topographical pattern corresponding to a magnetic pattern to be formed in a magnetic or MO recording medium; and (b) a layer of Ni on the second surface. A corrosion-resistant protective overcoat layer may be present on the topographically patterned surface. A method for manufacturing the stamper/imprinter is also disclosed.

    摘要翻译： 用于通过接触印刷图案化磁性和磁光（MO）记录介质的高场强对比磁压模/打印机包括：（a）具有高饱和磁化强度的磁性材料层， SUB >> =〜1.2，高磁导率μ> =〜5，包括第一，地形图形表面和与第一表面相对的第二表面，第一，地形图形表面包括图案化的多个间隔开的凹槽， 非凹陷区域，其形状图案对应于要在磁性或MO记录介质中形成的磁性图案; 和（b）第二表面上的Ni层。 耐腐蚀保护性外涂层可能存在于地形图形表面上。 还公开了一种用于制造压模/打印机的方法。

    High field contrast magnetic stampers/imprinters for contact patterning of magnetic media
    3.
    发明授权
    High field contrast magnetic stampers/imprinters for contact patterning of magnetic media 失效
    用于磁介质接触图形化的高场对比磁压模/打印机

    公开(公告)号：US07351484B2

    公开(公告)日：2008-04-01

    申请号：US11358100

    申请日：2006-02-22

    申请人： Li-Ping Wang ,  David Kuo ,  Jing Gui ,  Koichi Wago

    发明人： Li-Ping Wang ,  David Kuo ,  Jing Gui ,  Koichi Wago

    IPC分类号： G11B5/66

    CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B11/10578 ,  G11B11/10582 ,  H01F41/32

    摘要： A high field contrast magnetic stamper/imprinter for use in patterning of magnetic and magneto-optical (MO) recording media by contact printing, comprises: (a) a layer of a magnetic material having a high saturation magnetization Bsat≧˜1.2 and high permeability μ≧˜5, including a first, topographically patterned surface and a second surface opposite the first surface, the first, topographically patterned surface comprising a patterned plurality of spaced-apart recesses with a plurality of non-recessed areas therebetween, the topographical pattern corresponding to a magnetic pattern to be formed in a magnetic or MO recording medium; and (b) a layer of Ni on the second surface. A corrosion-resistant protective overcoat layer may be present on the topographically patterned surface. A method for manufacturing the stamper/imprinter is also disclosed.

    摘要翻译： 用于通过接触印刷图案化磁性和磁光（MO）记录介质的高场强对比磁压模/打印机包括：（a）具有高饱和磁化强度的磁性材料层， SUB >> =〜1.2，高磁导率μ> =〜5，包括第一，地形图形表面和与第一表面相对的第二表面，第一，地形图形表面包括图案化的多个间隔开的凹槽， 非凹陷区域，其形状图案对应于要在磁性或MO记录介质中形成的磁性图案; 和（b）第二表面上的Ni层。 耐腐蚀保护性外涂层可能存在于地形图形表面上。 还公开了一种用于制造压模/打印机的方法。

    Contact printing of magnetic media with mechanically reinforced and/or gas venting stamper
    6.
    发明授权
    Contact printing of magnetic media with mechanically reinforced and/or gas venting stamper 失效

    公开(公告)号：US07218466B1

    公开(公告)日：2007-05-15

    申请号：US10453565

    申请日：2003-06-04

    申请人： Neil Deeman ,  Joseph Leigh ,  Koichi Wago ,  Li-Ping Wang

    发明人： Neil Deeman ,  Joseph Leigh ,  Koichi Wago ,  Li-Ping Wang

    IPC分类号： G11B5/86

    CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855

    摘要： An apparatus for performing contact printing of a magnetic transition pattern in a magnetic recording medium, comprising: (a) a stamper/imprinter including a body formed of at least one magnetic material having a high saturation magnetization Bsat and a high permeability, including an imprinting surface adapted to be placed in intimate contact with a surface of a magnetic layer, the imprinting surface comprised of a plurality of patterned areas which separate a plurality of areas which are not patterned, each of the areas which is not patterned being provided with at least one of: (i) mechanical reinforcing means for preventing deformation of the body when the imprinting surface is urged into contact with the surface of the magnetic layer; and (ii) gas venting means for facilitating removal of air or other gas from between the imprinting surface and the surface of the magnetic layer when the former is urged into contact with the latter.

    Contact printing of longitudinal magnetic media with perpendicularly applied magnetic field
    7.
    发明授权
    Contact printing of longitudinal magnetic media with perpendicularly applied magnetic field 失效
    用垂直磁场接触纵向磁性介质的印刷

    公开(公告)号：US06979524B2

    公开(公告)日：2005-12-27

    申请号：US10418124

    申请日：2003-04-18

    申请人： Koichi Wago ,  Shih-Fu Lee ,  Li-Ping Wang ,  Joseph Leigh

    发明人： Koichi Wago ,  Shih-Fu Lee ,  Li-Ping Wang ,  Joseph Leigh

    IPC分类号： G11B5/00 ,  G11B5/74 ,  G11B5/855 ,  G11B5/86 ,  G11B5/03

    CPC分类号： B82Y10/00 ,  G11B5/74 ,  G11B5/743 ,  G11B5/855 ,  G11B5/865 ,  G11B2005/001 ,  Y10S428/90 ,  Y10T428/24248

    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.

    摘要翻译： 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。

    Contact printing of magnetic media with mechanically reinforced and/or gas venting stamper
    9.
    发明申请
    Contact printing of magnetic media with mechanically reinforced and/or gas venting stamper 审中-公开
    用机械加强和/或排气压模接触磁性介质的印刷

    公开(公告)号：US20070263308A1

    公开(公告)日：2007-11-15

    申请号：US11797254

    申请日：2007-05-02

    申请人： Neil Deeman ,  Joseph Leigh ,  Koichi Wago ,  Li-Ping Wang

    发明人： Neil Deeman ,  Joseph Leigh ,  Koichi Wago ,  Li-Ping Wang

    IPC分类号： G11B5/86

    CPC分类号： G11B5/865 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855

    摘要： An apparatus for performing contact printing of a magnetic transition pattern in a magnetic recording medium, comprising: (a) a stamper/imprinter including a body formed of at least one magnetic material having a high saturation magnetization Bsat and a high permeability, including an imprinting surface adapted to be placed in intimate contact with a surface of a magnetic layer, the imprinting surface comprised of a plurality of patterned areas which separate a plurality of areas which are not patterned, each of the areas which is not patterned being provided with at least one of: (i) mechanical reinforcing means for preventing deformation of the body when the imprinting surface is urged into contact with the surface of the magnetic layer; and (ii) gas venting means for facilitating removal of air or other gas from between the imprinting surface and the surface of the magnetic layer when the former is urged into contact with the latter.

    摘要翻译： 一种用于在磁记录介质中执行磁转移图案的接触印刷的设备，包括：（a）压模/印刷机，其包括由至少一种具有高饱和磁化强度的磁性材料形成的主体， 以及高磁导率，包括适于与磁性层的表面紧密接触的压印表面，所述压印表面由多个图案区域组成，所述多个图案区域分隔多个未被图案化的区域，每个区域是 未图案化地具有以下中的至少一个：（i）机械加强装置，用于防止当压印表面被迫与磁性层的表面接触时体的变形; 和（ii）气体排出装置，用于当前者被迫与其接触时，便于从压印表面和磁性层的表面之间移除空气或其它气体。