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1.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：US07112376B2
公开(公告)日：2006-09-26
申请号：US10753366
申请日：2004-01-09
CPC分类号： G11B5/7325 , G11B5/656 , Y10S428/90 , Y10T428/12854
摘要： A magnetic recording medium comprising; a nonmagnetic support; a first under layer which is constituted by a nonmetal element, per se, a compound consisting of nonmetal elements, or a compound containing titanium and a nonmetal element; a second under layer containing at least one element selected from the group consisting of chromium, titanium, iridium, platinum, palladium, ruthenium, rhodium, rhenium and osmium; and a magnetic layer which contains a ferromagnetic metal alloy containing at least cobalt, platinum and chromium, and a nonmagnetic compound, in this order.
摘要翻译： 一种磁记录介质，包括： 非磁性支撑; 由非金属元素本身构成的第一底层，由非金属元素组成的化合物或包含钛和非金属元素的化合物; 含有选自铬，钛，铱，铂，钯，钌，铑，铼和锇中的至少一种元素的第二下层; 以及含有至少含有钴，铂，铬的铁磁性金属合金和非磁性化合物的磁性层。
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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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公开(公告)号：US20060204790A1
公开(公告)日：2006-09-14
申请号：US11366404
申请日：2006-03-03
申请人： Masakazu Nishikawa , Naoto Fujiwara
发明人： Masakazu Nishikawa , Naoto Fujiwara
IPC分类号： G11B5/65
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.
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公开(公告)号：US07105238B2
公开(公告)日：2006-09-12
申请号：US10635640
申请日：2003-08-07
申请人： Takako Ozawa , Masakazu Nishikawa
发明人： Takako Ozawa , Masakazu Nishikawa
IPC分类号： G11B5/86
摘要： A master information carrier has on its surface an irregularity pattern representing information to be magnetically transferred to a magnetic recording medium held in contact with the surface of the master information carrier. The parts of the surface of the master information carrier which is brought into contact with the magnetic recording medium are in the range of 0.3 nm to 10.0 nm in center plane mean surface roughness SRa.
摘要翻译： 主信息载体在其表面上具有表示要磁性传递到与主信息载体的表面保持接触的磁记录介质的信息的不规则图案。 与磁记录介质接触的主信息载体的表面的部分在中心平均平均表面粗糙度SRa为0.3nm至10.0nm的范围内。
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6.发明授权公开(公告)号：US07094484B2
公开(公告)日：2006-08-22
申请号：US10893927
申请日：2004-07-20
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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7.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：US07079336B2
公开(公告)日：2006-07-18
申请号：US11127254
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
IPC分类号： G11B5/86
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：US07054080B2
公开(公告)日：2006-05-30
申请号：US11121932
申请日：2005-05-05
IPC分类号： G11B5/86
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/743 , G11B5/82 , G11B5/865 , Y10T428/12465 , Y10T428/32
摘要： By bring a master carrier and a slave medium into close contact with uniform force when executing magnetic transfer by applying transfer magnetic field in the state that the master carrier and slave medium is in confronted close contact and received within a holder, inferiority of transfer such as omission of signals is prevented and quality of transfer signals is enhanced.The magnetic transfer apparatus executes magnetic transfer by applying transfer magnetic field by means of a magnetic field applying apparatus 5 after a master carrier 3, 4 bearing transfer information and a slave medium 2 to be transferred are brought into confronted close contact and received within a holder 10, wherein said holder 10 has a substantially circular shape and in particular, the circularity of holder is not less than 98%, wherein the flexural rigidity=Ed3/12 determined by Young's modulus E and thickness d of the holder is in the range of 0.1˜30 kN·m2 when the width of close contact area between the slave medium and master carrier is defined as 1 m, and wherein the practical thickness of the holder is not less than 3 mm and not more than 15 mm.
摘要翻译： 通过在主载体和从属介质紧密接触并接收在载体内的状态下，通过施加传递磁场来使主载体和从属介质与均匀的力紧密接触，从而传递的传递如 防止信号的省略，并且提高传输信号的质量。 磁传送装置通过在主载体3,4之间施加转移磁场来执行磁转移，主载体3,4之间的轴承转移信息和待传送的从属介质2被紧密接触并接收在保持器内 如图10所示，其中所述保持器10具有大致圆形形状，特别地，保持器的圆形度不小于98％，其中由杨氏模量E和厚度d确定的弯曲刚度= Ed 3/12 当从属介质和主载体之间的紧密接触面积的宽度被定义为1m时，保持器的范围在0.1〜30kN.m 2范围内，并且其中保持器的实际厚度 不小于3mm且不大于15mm。
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公开(公告)号：US06950252B2
公开(公告)日：2005-09-27
申请号：US10178550
申请日：2002-06-25
CPC分类号： B82Y10/00 , G11B5/59633 , G11B5/65 , G11B5/7315 , G11B5/743 , G11B5/865
摘要： A master carrier for magnetic transfer is equipped with a substrate with a land/groove pattern of lands and grooves, and a magnetic layer formed on the land/groove pattern. The adhesion between the substrate and the magnetic layer is 1.2×109 N/m2 or greater. A first oxygen concentration Do at the magnetic layer formed on the land is reduced gradually toward the direction of the depth of the substrate and is greater than a second oxygen concentration Dh at the magnetic layer formed on the groove.
摘要翻译： 用于磁转印的主载体配备有具有焊盘和凹槽的焊盘/凹槽图案的基板，以及形成在焊盘/凹槽图案上的磁性层。 衬底与磁性层之间的粘合力为1.2×10 9 / N 2/2以上。 形成在焊盘上的磁性层处的第一氧浓度D
朝着衬底的深度方向逐渐减小，并且大于第二氧浓度D < 在形成在凹槽上的磁性层上。
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