公开(公告)号：US06658922B2

公开(公告)日：2003-12-09

申请号：US09996552

申请日：2001-11-27

申请人： Joseph Leigh ,  David S. Kuo ,  Li-Ping Wang ,  Nobuo Kurataka

发明人： Joseph Leigh ,  David S. Kuo ,  Li-Ping Wang ,  Nobuo Kurataka

IPC分类号： G01B528

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/012 ,  G11B2005/001 ,  Y10S977/872

摘要： A method and apparatus for scanning a media is described. More particularly, polarization detector and an atomic force microscope are coupled to a common platform indexed to a spindle. Optionally, an optical microscope may be coupled to the common platform. The polarization detector is used to detect a magnetic image, such as at least a portion of a servo pattern, of the media, and the atomic force microscope, which may be aligned using the magnetic image, is used with a magnetic microscopy module to scan the media. Accordingly, magnetic imagery may be achieved with indexing to a single spindle for positional consistency as between equipment. Moreover, the polarization detector may further be configured to detect scattered light for providing topographic imagery of the media.

公开(公告)号：US06761618B1

公开(公告)日：2004-07-13

申请号：US10386600

申请日：2003-03-13

申请人： Joseph Leigh ,  Nobuo Kurataka

发明人： Joseph Leigh ,  Nobuo Kurataka

IPC分类号： B24B4900

CPC分类号： G11B11/10582 ,  B24B37/30 ,  B82Y10/00 ,  G11B5/59688 ,  G11B5/743 ,  G11B5/855 ,  G11B5/865

摘要： A method of manufacturing a magnetic stamper/imprinter for use in patterning of magnetic recording media by means of a contact printing process, comprising sequential steps of: (a) providing a stamper/imprinter comprising a body of a magnetic material having an imprinting surface including a topographical pattern corresponding to a pattern to be formed in the surface of a magnetic or magneto-optical (MO) recording medium and comprising a patterned plurality of spaced-apart recesses with a plurality of non-recessed areas therebetween, said imprinting surface including a plurality of defects comprising surface blemishes and stains, magnetic particles, and non-magnetic particles; (b) initially removing the surface blemishes, stains, and magnetic particles; and (c) then removing or rendering the non-magnetic particles benign to the contact printing process.

摘要翻译： 一种用于通过接触印刷方法制造用于磁记录介质图案化的磁压模/打印机的方法，包括以下顺序步骤：（a）提供压模/打印机，其包括具有压印表面的磁性材料体，包括： 与形成在磁或磁光（MO）记录介质的表面中的图案相对应的图案图案，并且包括在其间具有多个非凹陷区域的图案化的多个间隔开的凹槽，所述压印表面包括 多个缺陷包括表面瑕疵和污渍，磁性颗粒和非磁性颗粒;（b）最初除去表面瑕疵，污渍和磁性颗粒; 和（c）然后将非磁性颗粒除去或呈现良好的接触印刷过程。

公开(公告)号：US5798164A

公开(公告)日：1998-08-25

申请号：US503785

申请日：1995-07-18

申请人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

发明人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

IPC分类号： B24B21/06 ,  G11B5/64 ,  G11B5/82 ,  G11B5/84

CPC分类号： G11B5/8404 ,  B24B21/06 ,  G11B5/64 ,  G11B5/82 ,  Y10S428/90 ,  Y10T428/24355

摘要： Magnetic recording media are provided having separately textured data and read/write head landing zones. Separating these zones on the recording surface allows independent optimization of the topology to maximize both recording characteristics and mechanical durability. The landing or contact start stop zone has an average surface roughness greater than that of the data zone. Preferably, a transition zone extends between the contact start stop zone and the data zone, the transition zone varying between the two in average surface roughness. Preferably, the contact start stop zone is textured first, followed by the data zone, thereby ensuring uniform stiction performance. Texture machines for producing such zone texturing and texturing methods are also provided.

摘要翻译： 磁记录介质具有单独纹理的数据和读/写磁头着陆区。 在记录表面上分离这些区域可以独立优化拓扑结构，以最大化记录特性和机械耐久性。 着陆或接触起始停止区域的平均表面粗糙度大于数据区域的平均表面粗糙度。 优选地，过渡区域在接触起始停止区域和数据区域之间延伸，过渡区域在两个平均表面粗糙度之间变化。 优选地，接触起始停止区先纹理，然后是数据区，从而确保均匀的静摩擦性能。 还提供了用于生产这种区域纹理和纹理方法的纹理机。

公开(公告)号：US06350178B2

公开(公告)日：2002-02-26

申请号：US09747808

申请日：2000-12-22

申请人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

发明人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

IPC分类号： B24B100

CPC分类号： G11B5/8404 ,  B24B21/06 ,  G11B5/64 ,  G11B5/82 ,  Y10S428/90 ,  Y10T428/24355

摘要： Magnetic recording media-are provided having separately textured data and read/write head landing zones. Separating these zones on the recording surface allows independent optimization of the topology to maximize both recording characteristics and mechanical durability. The landing or contact start stop zone has an average surface roughness greater than that of the data zone. Preferably, a transition zone extends between the contact start stop zone and the data zone, the transition zone varying between the two in average surface roughness. Preferably, the contact start stop zone is textured first, followed by the data zone, thereby ensuring uniform stiction performance. Texture machines for producing such zone texturing and texturing methods are also provided.

摘要翻译： 提供磁记录介质，其具有单独纹理的数据和读/写磁头着陆区。 在记录表面上分离这些区域可以独立优化拓扑结构，以最大化记录特性和机械耐久性。 着陆或接触起始停止区域的平均表面粗糙度大于数据区域的平均表面粗糙度。 优选地，过渡区域在接触起始停止区域和数据区域之间延伸，过渡区域在两个平均表面粗糙度之间变化。 优选地，接触起始停止区先纹理，然后是数据区，从而确保均匀的静摩擦性能。 还提供了用于生产这种区域纹理和纹理方法的纹理机。

公开(公告)号：US06193590B1

公开(公告)日：2001-02-27

申请号：US09048869

申请日：1998-03-26

申请人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

发明人： Joel R. Weiss ,  Koji Shima ,  Joseph Leigh ,  Hiroshi Konishi ,  Nobuo Kurataka ,  Hiroki Hara ,  Naoki Inoue

IPC分类号： B24B2106

CPC分类号： G11B5/8404 ,  B24B21/06 ,  G11B5/64 ,  G11B5/82 ,  Y10S428/90 ,  Y10T428/24355

摘要： Magnetic recording media are provided having separately textured data and read/write head landing zones. Separating these zones on the recording surface allows independent optimization of the topology to maximize both recording characteristics and mechanical durability. The landing or contact start stop zone has an average surface roughness greater than that of the data zone. Preferably, a transition zone extends between the contact start stop zone and the data zone, the transition zone varying between the two in average surface roughness. Preferably, the contact start stop zone is textured first, followed by the data zone, thereby ensuring uniform stiction performance. Texture machines for producing such zone texturing and texturing methods are also provided.

摘要翻译： 磁记录介质具有单独纹理的数据和读/写磁头着陆区。 在记录表面上分离这些区域可以独立优化拓扑结构，以最大化记录特性和机械耐久性。 着陆或接触起始停止区域的平均表面粗糙度大于数据区域的平均表面粗糙度。 优选地，过渡区域在接触起始停止区域和数据区域之间延伸，过渡区域在两个平均表面粗糙度之间变化。 优选地，接触起始停止区先纹理，然后是数据区，从而确保均匀的静摩擦性能。 还提供了用于生产这种区域纹理和纹理方法的纹理机。

公开(公告)号：US06903888B2

公开(公告)日：2005-06-07

申请号：US10346504

申请日：2003-01-15

申请人： Joseph Leigh ,  Nobuo Kurataka

发明人： Joseph Leigh ,  Nobuo Kurataka

IPC分类号： G11B5/82 ,  G11B27/36 ,  G11B20/18

CPC分类号： B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B27/36 ,  G11B2220/20

摘要： Defects of a hard disk drive servo pattern stamper are detected by comparing a scattered light beam pattern against the known servo pattern. A magnetic field is applied to stamper and the beam is linearly polarized. Variations in the physical offset of the beam, its scatter, are indicative of physical defects. Variations in the Kerr rotation of scattered beam are indicative of magnetic defects.

摘要翻译： 通过将散射光束图案与已知的伺服模式进行比较来检测硬盘驱动器伺服模式压模的缺陷。 磁场被施加到压模，并且光束是线偏振的。 光束的物理偏移的变化及其散射表示物理缺陷。 散射光束的克尔旋转的变化表示磁性缺陷。

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。

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.

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。

公开(公告)号：US06898037B2

公开(公告)日：2005-05-24

申请号：US09996551

申请日：2001-11-27

申请人： Joseph Leigh ,  David S. Kuo

发明人： Joseph Leigh ,  David S. Kuo

IPC分类号： G01Q60/00 ,  G11B5/60 ,  G11B5/02

CPC分类号： G11B5/6005 ,  Y10S977/868

摘要： A method and apparatus for detecting a topographic feature on a media is described. More particularly, a light scatter detector is coupled to an atomic force microscope. The detector is used detect scattered optical energy reflected from the surface of the media to identify the topographic feature. The atomic force microscope may then be positioned in response to the topographic feature identified.

摘要翻译： 描述了用于检测介质上的地形特征的方法和装置。 更具体地，光散射检测器耦合到原子力显微镜。 检测器用于检测从介质表面反射的散射光能，以识别地形特征。 然后可以响应于所标识的地形特征来定位原子力显微镜。