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公开(公告)号：US20080014456A1
公开(公告)日：2008-01-17
申请号：US11857174
申请日：2007-09-18
申请人： Masakazu Nishikawa , Seiji Kasahara
发明人： Masakazu Nishikawa , Seiji Kasahara
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/012 , G11B5/59688 , G11B5/82 , G11B2005/001 , Y10T428/12
摘要： A process for producing a master carrier contains steps of: forming a desired pattern on a support to form a resist pattern support; forming a first ferromagnetic thin film on the resist pattern support by a vacuum film forming method; forming a third ferromagnetic thick film on the first ferromagnetic thin film by an electroplating; and peeling the support from the resist pattern support provided with the first ferromagnetic thin film and the third ferromagnetic thick film.
摘要翻译： 用于制造主载体的方法包括以下步骤：在载体上形成所需的图案以形成抗蚀剂图案载体; 通过真空成膜法在抗蚀剂图案载体上形成第一铁磁薄膜; 通过电镀在第一铁磁薄膜上形成第三铁磁厚膜; 以及从设置有第一铁磁性薄膜和第三铁磁性厚膜的抗蚀剂图案支持体剥离支撑体。
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42.发明授权公开(公告)号：US07296478B2
公开(公告)日：2007-11-20
申请号：US11366411
申请日：2006-03-03
申请人： Masakazu Nishikawa , Naoto Fujiwara
发明人： Masakazu Nishikawa , Naoto Fujiwara
摘要： In a master carrier for magnetic transfer which comprises a support that has a transfer-recording pattern arrayed in the track direction thereof in accordance with the information to be transferred to a magnetic recording medium, and a magnetic layer formed on the transfer-recording pattern of the support, the in-plane distance L (mm) between the hill and the valley of the warped master carrier, the vertical-direction distance H (μm) between the two, and the thickness d (mm) of the master carrier are so defined that they satisfy a relation of 0.05≦H·d3/L≦0.6.
摘要翻译： 在用于磁转移的主载体中，包括具有根据要传送到磁记录介质的信息沿其轨道方向排列的转印记录图案的支架，以及形成在转印记录图案上的磁性层 支撑件，翘曲主托架的山丘与山谷之间的平面间距离L（mm），两者之间的垂直方向距离H（母马）和主托架的厚度d（mm）是如此 定义为满足0.05 <= HD 3 / L <= 0.6的关系。
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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：US20050213237A1
公开(公告)日：2005-09-29
申请号：US11127237
申请日：2005-05-12
申请人： Akito Kamatani , Tsuneo Inui , Masashi Aoki , Masakazu Nishikawa
发明人： Akito Kamatani , Tsuneo Inui , Masashi Aoki , Masakazu Nishikawa
CPC分类号： G11B23/505 , G11B5/865
摘要： A magnetic transfer wherein the exchange of master mediums is made easy to perform is provided, whereby the operational efficiency and transfer efficiency are improved, leading to an overall improvement in productivity in the manufacture of preformatted slave mediums. A master fixing base for determining and supporting the position of a master medium, which bears transfer data, and a conjoining apparatus for conjoining the master medium and the slave medium that is to receive the transfer therefrom are provided. The master medium is exchanged along with the master fixing base. It is preferable that a cleaning means be provided.
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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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公开(公告)号：US06909563B2
公开(公告)日：2005-06-21
申请号：US10142938
申请日：2002-05-13
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865
摘要： A master carrier for magnetic transfer is equipped with a substrate having a land/groove pattern. The land/groove pattern is formed from a magnetic material and corresponds to information that is transferred to a magnetic recording disk. Each land in the land/groove pattern has four round corners whose radius is from 1% through 47% of the width of a data track on the disk.
摘要翻译： 用于磁转印的主载体配备有具有焊盘/凹槽图案的基板。 焊盘/凹槽图案由磁性材料形成，并对应于传送到磁记录盘的信息。 陆地/凹槽图案中的每个土地具有四个圆角，其半径为磁盘上数据轨道的宽度的1％至47％。
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公开(公告)号：US06906877B2
公开(公告)日：2005-06-14
申请号：US10163357
申请日：2002-06-07
摘要： A method of performing an accurate magnetic transfer to a high-density slave medium having two magnetic layers and utilizing antiferromagnetic coupling. The magnetic layer, which has been initially magnetized in advance, of a magnetic recording medium is conjoined with the data bearing surface of a master medium. A transfer magnetic field is applied to the conjoined body in the circumferential direction of the track of the first magnetic layer in the direction opposite the initial magnetization direction of the second magnetic layer. At this time, the thickness of the magnetic layer of the master medium, the permeability (material) of the magnetic layer, the form of the patterned magnetic layer, the separation distance between the master medium and the magnetic recording medium, etc., may be controlled so that the magnetic field of the transfer magnetic field does not effect the magnetization state of the first magnetic layer.
摘要翻译： 对具有两个磁性层并利用反铁磁耦合的高密度从属介质执行精确磁传递的方法。 磁记录介质的磁性层预先被磁化，并与主介质的数据承载表面相连。 在与第二磁性层的初始磁化方向相反的方向上，在第一磁性层的轨道的圆周方向上向结合体施加转移磁场。 此时，主介质的磁性层的厚度，磁性层的磁导率（材料），图案化磁性层的形式，主介质和磁记录介质之间的间隔距离等可以 被控制，使得传递磁场的磁场不影响第一磁性层的磁化状态。
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公开(公告)号：US06906874B2
公开(公告)日：2005-06-14
申请号：US10121679
申请日：2002-04-15
申请人： Akito Kamatani , Tsuneo Inui , Masashi Aoki , Masakazu Nishikawa
发明人： Akito Kamatani , Tsuneo Inui , Masashi Aoki , Masakazu Nishikawa
CPC分类号： G11B23/505 , G11B5/865
摘要： A magnetic transfer wherein the exchange of master mediums is made easy to perform is provided, whereby the operational efficiency and transfer efficiency are improved, leading to an overall improvement in productivity in the manufacture of preformatted slave mediums. A master fixing base for determining and supporting the position of a master medium, which bears transfer data, and a conjoining apparatus for conjoining the master medium and the slave medium that is to receive the transfer therefrom are provided. The master medium is exchanged along with the master fixing base. It is preferable that a cleaning means be provided.
摘要翻译： 提供了使主介质的更换变得容易执行的磁转移，从而提高了操作效率和转印效率，从而总体上提高了预格式从属介质的制造中的生产率。 提供了用于确定和支持承载传送数据的主介质的位置的主固定基座以及用于结合主介质和从属介质的用于接收其的从属介质的联结装置。 主介质与主固定底座一起更换。 优选的是提供清洁装置。
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公开(公告)号：US20050042473A1
公开(公告)日：2005-02-24
申请号：US10916527
申请日：2004-08-12
申请人： Masakazu Nishikawa , Seiji Kasahara
发明人： Masakazu Nishikawa , Seiji Kasahara
CPC分类号： G11B5/865 , G11B5/012 , G11B5/59688 , G11B5/82 , G11B2005/001 , Y10T428/12
摘要： A process for producing a master carrier contains steps of: forming a desired pattern on a support to form a resist pattern support; forming a first ferromagnetic thin film on the resist pattern support by a vacuum film forming method; forming a third ferromagnetic thick film on the first ferromagnetic thin film by an electroplating; and peeling the support from the resist pattern support provided with the first ferromagnetic thin film and the third ferromagnetic thick film.
摘要翻译： 用于制造主载体的方法包括以下步骤：在载体上形成所需的图案以形成抗蚀剂图案载体; 通过真空成膜法在抗蚀剂图案载体上形成第一铁磁薄膜; 通过电镀在第一铁磁薄膜上形成第三铁磁厚膜; 以及从设置有第一铁磁性薄膜和第三铁磁性厚膜的抗蚀剂图案支持体剥离支撑体。
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公开(公告)号：US06785069B2
公开(公告)日：2004-08-31
申请号：US09942766
申请日：2001-08-31
IPC分类号： G11B586
摘要： The present invention provides a magnetic transfer method for transferring information by bringing a master carrier for magnetic transfer and a slave medium into close contact with each other and by applying a magnetic field for transfer, said master carrier comprising servo areas and data areas, said servo areas are convex, and difference of height between the data areas and the servo areas is within the range of 50-800 nm.
摘要翻译： 本发明提供一种用于通过使用于磁传输的主载波和从属介质彼此紧密接触并且通过施加用于传送的磁场来传送信息的磁传输方法，所述主载波包括伺服区和数据区，所述伺服 区域是凸的，数据区域和伺服区域之间的高度差在50-800nm的范围内。
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