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公开(公告)号：US07079335B2
公开(公告)日：2006-07-18
申请号：US11109710
申请日：2005-04-20
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/59633 , G11B5/82
摘要： A favorable magnetic transfer is, performed on a perpendicular magnetic recording medium. A permanent magnet apparatus provided with two permanent magnets, each having a width extending the length of the radial direction of a discoid magnetic recording medium, is used as a transfer magnetic field generating means. A conjoined body formed of the perpendicular magnetic recording medium, which has been initially magnetized unidirectionally in the direction perpendicular to the track surface thereof, and two master mediums, disposed on respective surfaces of the slave medium, is inserted between the permanent magnets. A rotating means rotates the conjoined body, in the direction along the tracks of the slave medium, while a transfer magnetic field is applied to the conjoined body in the direction substantially opposite that in which the initial magnetization of the magnetic layer of magnetic recording medium has been performed, so as to perform the magnetic transfer.
摘要翻译： 在垂直磁记录介质上进行有利的磁转移。 具有两个永久磁铁的永久磁铁装置用作转移磁场产生装置，每个永磁体具有延伸盘形磁记录介质径向长度的宽度。 由垂直磁记录介质形成的连接体被插入在永磁体之间，该垂直磁记录介质最初在与其轨道表面垂直的方向上单向磁化，并且设置在从属介质的相应表面上的两个主介质。 旋转装置沿着从属介质的轨道的方向旋转结合体，同时传递磁场以与磁记录介质的磁性层的初始磁化强度基本相反的方向施加到结合体 进行磁转移。
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公开(公告)号：US06911270B2
公开(公告)日：2005-06-28
申请号：US10317111
申请日：2002-12-12
CPC分类号： B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/865 , Y10T428/12986 , Y10T428/24479 , Y10T428/2495 , Y10T428/31
摘要： A master information carrier for magnetic transfer includes a base sheet which is formed of a magnetic material. The master information carrier is provided with an irregularity pattern representing information to be transferred to a magnetic recording medium and a magnetic layer formed along the irregularity pattern. The saturation magnetization Mm of the magnetic layer and the saturation magnetization Ms of the base sheet satisfy the condition 1.0
摘要翻译： 用于磁转移的主信息载体包括由磁性材料形成的基片。 主信息载体具有表示要传送到磁记录介质的信息的不规则图案和沿着不规则图案形成的磁性层。 磁性层的饱和磁化强度Mm和基片的饱和磁化强度Ms满足条件<？in-line-formula description =“In-line Formulas”end =“lead”？> 1.0
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3.发明授权公开(公告)号：US07199953B2
公开(公告)日：2007-04-03
申请号：US10843585
申请日：2004-05-12
CPC分类号： G11B5/865 , G11B5/56 , Y10T428/12993
摘要： A favorable magnetic transfer is performed to a perpendicular magnetic recording medium. A master medium is provided with a substrate on the surface of which protrusion portions, which form a pattern corresponding to the data that is to be transferred, having a pliable layer thereon have been formed. The master medium is further provided with a soft magnetic layer formed in the depression portions between the protrusion portions, and which is magnetically linked to the soft magnetic layer of the protrusion portions. The soft magnetic layer of the surface of the protrusion portions is conjoined with the magnetic recording layer of a perpendicular magnetic recording medium to form a conjoined body, and a transfer magnetic field is applied to the conjoined body in the direction from the substrate of the master medium toward the slave medium to perform the magnetic transfer.
摘要翻译： 对垂直磁记录介质进行有利的磁转移。 主介质在其表面上设置有基板，其上形成有与其上具有柔韧层的要被转印的数据相对应的图案的突起部分。 主介质还设置有形成在突出部之间的凹陷部中的软磁性层，并且其与突出部的软磁性层磁性连接。 突出部分的表面的软磁性层与垂直磁记录介质的磁记录层相结合，形成结合体，并且传递磁场沿主体的基板方向施加到结合体 介质朝向从介质执行磁传输。
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公开(公告)号：US07110196B2
公开(公告)日：2006-09-19
申请号：US10147465
申请日：2002-05-17
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/59633 , G11B2005/0029
摘要： A favorable magnetic transfer is performed on a vertical magnetic recording medium. A permanent magnet apparatus employs a transfer magnetic field generating means provided with two columnar permanentmagnets, each having a cross-sectional surface are equal to or greater than that of the track surface of the slave medium. A conjoined body formed of a slave medium, which has been initially magnetized unidirectionally in the direction perpendicular to the track surface thereof, and two master mediums, disposed on respective surfaces of the slave medium, is inserted between the permanent magnets so that a transfer magnetic field can be applied thereto in the direction substantially opposite that in which the initial magnetization has been performed. A uniform transfer magnetic field is applied over the entirety of track surface of the slave medium so as to simultaneously perform a magnetic transfer over the entirety of the track surface.
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5.发明授权公开(公告)号：US07094481B2
公开(公告)日：2006-08-22
申请号：US10958327
申请日：2004-10-06
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865 , Y10T428/273
摘要： A master information carrier for magnetic transfer to an in-plane magnetic recording medium includes a base sheet having an irregularity pattern representing information to be transferred to an in-plane magnetic recording medium and a magnetic layer formed along the irregularity pattern. The thickness da1 of the magnetic layer on the upper surface of a protruding portion of the irregularity pattern and the thickness da2 of the magnetic layer on each of the side surfaces of the protruding portion satisfy the following condition, 0.05
摘要翻译： 用于磁传递到平面内磁记录介质的主信息载体包括具有表示要传送到平面内磁记录介质的信息的不规则图案的基片和沿着不规则图案形成的磁性层。 不规则图案的突出部分的上表面上的磁性层的厚度da 1和突出部分的每个侧表面上的磁性层的厚度da 2满足以下条件： 公式描述=“内联公式”end =“lead”？> 0.05
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公开(公告)号：US06906876B2
公开(公告)日：2005-06-14
申请号：US10147976
申请日：2002-05-20
CPC分类号： G11B5/865 , G11B5/59633 , G11B5/82
摘要： A favorable magnetic transfer is performed on a perpendicular magnetic recording medium. A permanent magnet apparatus provided with two permanent magnets, each having a width extending the length of the radial direction of a discoid magnetic recording medium, is used as a transfer magnetic field generating means. A conjoined body formed of the perpendicular magnetic recording medium, which has been initially magnetized unidirectionally in the direction perpendicular to the track surface thereof, and two master mediums, disposed on respective surfaces of the slave medium, is inserted between the permanent magnets. A rotating means rotates the conjoined body, in the direction along the tracks of the slave medium, while a transfer magnetic field is applied to the conjoined body in the direction substantially opposite that in which the initial magnetization of the magnetic layer of magnetic recording medium has been performed, so as to perform the magnetic transfer.
摘要翻译： 对垂直磁记录介质进行良好的磁转移。 具有两个永久磁铁的永久磁铁装置用作转移磁场产生装置，每个永磁体具有延伸盘形磁记录介质径向长度的宽度。 由垂直磁记录介质形成的连接体被插入在永磁体之间，该垂直磁记录介质最初在与其轨道表面垂直的方向上单向磁化，并且设置在从属介质的相应表面上的两个主介质。 旋转装置沿着从属介质的轨道的方向旋转结合体，同时传递磁场以与磁记录介质的磁性层的初始磁化强度基本相反的方向施加到结合体 进行磁转移。
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7.发明授权公开(公告)号：US06816327B2
公开(公告)日：2004-11-09
申请号：US10304998
申请日：2002-11-27
IPC分类号： G11B586
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865 , Y10T428/273
摘要： A master information carrier for magnetic transfer to an in-plane magnetic recording medium includes a base sheet having an irregularity pattern representing information to be transferred to an in-plane magnetic recording medium and a magnetic layer formed along the irregularity pattern. The thickness da1 of the magnetic layer on the upper surface of a protruding portion of the irregularity pattern and the thickness da2 of the magnetic layer on each of the side surfaces of the protruding portion satisfy the following condition, 0.05
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公开(公告)号：US06643079B1
公开(公告)日：2003-11-04
申请号：US09558336
申请日：2000-04-26
IPC分类号： G11B586
CPC分类号： G11B5/865
摘要： The present invention provides a method for magnetic transfer, said method comprising the steps of arranging permanent magnets each having magnetic field symmetrical to the axis of the magnetic pole at least on one of upper or lower surfaces of the slave medium with the axis of the magnetic pole disposed in parallel to the surface of the slave medium, rotating the slave medium or the permanent magnet in track direction, performing initial DC magnetization on the slave medium in advance in track direction, bringing the master carrier for magnetic transfer closely together with the slave medium processed by said initial DC magnetization, and performing magnetic transfer by applying magnetic field for transfer in track direction reverse to the direction of the initial DC magnetization on the surface of the slave medium.
摘要翻译： 本发明提供一种磁转移方法，所述方法包括以下步骤：在从属介质的上表面或下表面中的至少一个上配置磁性体，每个永磁体具有与磁极的轴对称的磁场， 磁极设置成平行于从动介质的表面，在磁道方向上旋转从属介质或永久磁铁，在磁带方向上预先在从属介质上执行初始直流磁化，使主载体磁传递紧密地与从属 通过所述初始DC磁化进行介质处理，并且通过在与从属介质的表面上的初始DC磁化方向相反的磁道方向上施加磁场来进行磁传输。
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公开(公告)号：US06602301B1
公开(公告)日：2003-08-05
申请号：US09558339
申请日：2000-04-26
IPC分类号： G11B586
CPC分类号： G11B5/865
摘要： The present invention provides a method for magnetic transfer, the method including the steps of arranging a pair of permanent magnets each having magnetic field symmetrical to the axis of the magnetic pole and with the same polarities facing to each other with the axis of the magnetic pole running perpendicularly to the surface of the slave medium, and arranging two pairs of said permanent magnets at adjacent positions so that the adjacent magnets have the poles with opposite polarities adjacent to each other, rotating the slave medium or the two pairs of permanent magnets in track direction, and applying magnetic field in track direction on the surface of the slave medium, performing initial DC magnetization on the slave medium in advance in track direction, bringing the master carrier for magnetic transfer and the slave medium processed by said initial DC magnetization closely together, and performing magnetic transfer by applying magnetic field for transfer in a direction reverse to the direction of the initial DC magnetization on the surface of the slave medium in track direction.
摘要翻译： 本发明提供一种磁转移方法，该方法包括以下步骤：一对永磁体，每个永磁体具有与磁极轴对称的磁场，并且具有与磁极的轴线相对的彼此相同的极性 垂直于从属介质的表面运行，并且在相邻位置处布置两对永磁体，使得相邻的磁体具有彼此相邻极性的极，将从属介质或两对永磁体旋转到轨道 方向，并且在从动介质的表面上沿磁道方向施加磁场，在磁道方向上预先在从属介质上执行初始DC磁化，使主载体磁传递，从介质由所述初始DC磁化处理，紧密地组合在一起 ，并且通过在反向t的方向上施加用于传送的磁场来执行磁转移 o在从动介质的轨道方向的表面上的初始DC磁化方向。
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10.发明授权公开(公告)号：US07139140B2
公开(公告)日：2006-11-21
申请号：US10078535
申请日：2002-02-21
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/59633 , G11B5/82
摘要： When executing a magnetic transfer by bringing a master medium and a slave medium into close contact with each other and applying a transferring magnetic field, a permitted limit of the application direction of the transferring magnetic field is defined so that magnetic patterns can be accurately transferred. A slave medium 2 is previously initial DC magnetized in a track direction by applying a magnetic field to the slave medium in the track direction of a slave surface, and when executing a magnetic transfer by bringing the master medium 3 and the slave medium 2 into close contact with each other and applying the transferring magnetic field in the track direction of the slave surface, the application angle α of the transferring magnetic field is defined within a range of ±30° in a vertical direction with respect to the slave surface. Furthermore, the application angle of the transferring magnetic field is defined within a range of ±30° with respect to the track direction on a plane parallel to the slave surface.
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