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71.发明申请MOLD STRUCTURE, IMPRINTING METHOD USING THE SAME, MAGNETIC RECORDING MEDIUM AND PRODUCTION METHOD THEREOF 审中-公开模具结构，使用其的印刷方法，磁记录介质及其生产方法公开(公告)号：US20080241601A1
公开(公告)日：2008-10-02
申请号：US12059102
申请日：2008-03-31
CPC分类号： G03F7/0002 , B29C33/424 , B82Y10/00 , B82Y40/00 , G11B5/855
摘要： The present invention provides a mold structure including: a concavo-convex pattern formed on its surface, wherein the mold structure is used for transferring the concavo-convex pattern onto an imprint resist layer formed on a surface of a substrate having a thickness of 0.3 mm to 2.0 mm by placing the concavo-convex pattern against the imprint resist layer, and wherein a thickness Dm (mm) of the mold structure, a thickness Ds (mm) of the substrate and a curl amount C (mm) of the mold structure satisfy the relationship 0.01≦10,000×(Dm3/Ds3)1/2×C2≦250.
摘要翻译： 本发明提供一种模具结构，其包括：在其表面上形成的凹凸图案，其中所述模具结构用于将所述凹凸图案转印到形成在厚度为0.3mm的基板的表面上的压印抗蚀剂层上 通过将凹凸图案放置在抗蚀刻抗蚀剂层上，并且其中模具结构的厚度Dm（mm），基底的厚度Ds（mm）和模具结构的卷曲量C（mm） 满足0.01 <= 10,000×（DM 3/3 / D 3以下）的关系×1/2×C 2 < 250。
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公开(公告)号：US20060126202A1
公开(公告)日：2006-06-15
申请号：US11349181
申请日：2006-02-08
IPC分类号： G11B5/86
摘要： When magnetically transferring information represented by a pattern of magnetic layer formed on a master information carrier to a disc-like slave medium, an initial DC magnetic field is applied to the slave medium to initially magnetize the slave medium in one direction of concentric recording tracks and a transfer magnetic field is applied to the slave medium in the direction opposite to the direction of the initial-magnetization with the initially-magnetized slave medium held in close contact with the master information carrier. At least one of applying the initial DC magnetic field and applying the transfer magnetic field is effected by applying the magnetic field while the slave medium is being rotated relatively to the magnetic field and stopping the rotation of the slave medium after the intensity of the magnetic field is gradually reduced to not stronger than a predetermined value.
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公开(公告)号：US07038868B2
公开(公告)日：2006-05-02
申请号：US10364353
申请日：2003-02-12
IPC分类号： G11B5/86
摘要： When magnetically transferring information represented by a pattern of magnetic layer formed on a master information carrier to a disc-like slave medium, an initial DC magnetic field is applied to the slave medium to initially magnetize the slave medium in one direction of concentric recording tracks and a transfer magnetic field is applied to the slave medium in the direction opposite to the direction of the initial-magnetization with the initially-magnetized slave medium held in close contact with the master information carrier. At least one of applying the initial DC magnetic field and applying the transfer magnetic field is effected by applying the magnetic field while the slave medium is being rotated relatively to the magnetic field and stopping the rotation of the slave medium after the intensity of the magnetic field is gradually reduced to not stronger than a predetermined value.
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公开(公告)号：US06977786B2
公开(公告)日：2005-12-20
申请号：US10264343
申请日：2002-10-04
申请人： Kazuyuki Usuki , Masakazu Nishikawa , Makoto Nagao
发明人： Kazuyuki Usuki , Masakazu Nishikawa , Makoto Nagao
CPC分类号： G11B5/59677 , G11B5/59611 , G11B5/865
摘要： In an information recording method of the present invention by carrying out recording data while carrying out tracking servo accurately, high density recording of signals at a good S/N can be carried out, and high density recording by a vertical magnetic recording system can be carried out. A magnetic disk comprises a magnetic recording layer, and the magnetic recording layer is magnetized in advance such that magnetized regions A and B having different magnetization directions are formed. At a time of recording data, vertical magnetic recording is carried out by a magnetic head while carrying out accurate tracking servo by optically tracking by a magneto-optical effect utilizing a difference in the magnetization directions of the magnetized regions A and B. Therefore, high-density recording at a good S/N is possible.
摘要翻译： 在本发明的信息记录方法中，通过在精确地执行跟踪伺服的同时执行记录数据，可以进行具有良好S / N的信号的高密度记录，并且可以承载通过垂直磁记录系统的高密度记录 出来 磁盘包括磁记录层，磁记录层被预先磁化，从而形成磁化方向不同的磁化区域A和B. 在记录数据时，通过利用磁化区域A和B的磁化方向上的差异的磁光效应通过光学跟踪进行精确的跟踪伺服，由磁头执行垂直磁记录。因此，高 在良好的S / N下的密度记录是可能的。
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75.发明申请公开(公告)号：US20050213236A1
公开(公告)日：2005-09-29
申请号：US11087649
申请日：2005-03-24
申请人： Masakazu Nishikawa , Makoto Nagao
发明人： Masakazu Nishikawa , Makoto Nagao
CPC分类号： B82Y10/00 , G11B5/59688 , G11B5/743 , G11B5/865
摘要： A master information carrier for magnetic transfer bears uneven signal patterns on its surface. When the minimum bit length in the uneven signal patterns is Bmin, dummy uneven patterns are provided in a depression of the uneven signal patterns, which has a length of 4Bmin or longer in the direction along a track. When magnetic transfer is performed, magnetized patterns corresponding to the dummy uneven patterns are transferred onto a slave medium. The magnetized patterns are patterns which will not be recognized as reproduction signals at a drive, into which the slave medium after magnetic transfer will be loaded.
摘要翻译： 用于磁转移的主信息载体在其表面上具有不均匀的信号图案。 当不均匀信号图案中的最小位长度为B 时，在不均匀信号图案的凹陷中提供虚设不均匀图案，其长度为4B分钟或 沿着轨道的方向更长。 当进行磁转移时，对应于虚拟不均匀图案的磁化图案被转移到从属介质上。 磁化图案是在驱动器处将不被识别为再现信号的图案，磁传输之后的从介质将被加载到该驱动器中。
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公开(公告)号：US20050200995A1
公开(公告)日：2005-09-15
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
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：US20050200994A1
公开(公告)日：2005-09-15
申请号：US11121933
申请日：2005-05-05
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.
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公开(公告)号：US06909634B2
公开(公告)日：2005-06-21
申请号：US10848409
申请日：2004-05-19
申请人： Masakazu Nishikawa
发明人： Masakazu Nishikawa
摘要： In a magnetic transfer master carrier, as a substrate, one having a Young's modulus E (GPa) in the range of 85 to 250 is used. Magnetic transfer is performed under conditions in which 2≦αEd3/{P(S2/S1)}≦400 (where the constant α=7.37×109) is satisfied, where d (m) is the thickness of the substrate from the bottom face of a recessed portion to the back face, S1 (m2) is the total area of the cross sections of the projected portions which are parallel to the plane of the substrate at a height of 50% of Dmax from the bottom face of the recessed portion when the height from the bottom face of the recessed portion to the top face of a projected portion is denoted by Dmax, S2 (m2) is the total area of the bottom faces of the recessed portions and the cross sections of the projected portions at the positions of the relevant bottom faces, and P (MPa) is the tight contact pressure between the master carrier and the slave medium at the time of magnetic transfer.
摘要翻译： 在磁转移主载体中，作为基材，使用杨氏模量E（GPa）在85〜250的范围内。 磁性转移是在条件下进行的，其中2 <=αED3 / {P（S 2 / S 1 <= 400（其中常数α= 7.37×10 9） 满足，其中d（m）是从凹部的底面到背面的基板的厚度，S 1（m 2）是投影的横截面的总面积 当从突出部分的凹部的底面到顶面的高度由Dmax表示时，与凹部的底面的高度相距的Dmax平行于基板平面的部分， S 2（m 2）是凹部的底面和相关底面的位置处的突出部的截面的总面积，P（MPa）是紧的 磁传输时主载体与从属介质之间的接触压力。
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公开(公告)号：US06882484B2
公开(公告)日：2005-04-19
申请号：US10603084
申请日：2003-06-25
申请人： Masakazu Nishikawa
发明人： Masakazu Nishikawa
摘要： A magnetic transfer system includes magnetic recording medium stocker which holds a plurality of magnetic recording media, a magnetic transfer apparatus which magnetically transfers information represented by a magnetic layer on a master information carrier to the magnetic recording medium by applying a transfer magnetic field to the magnetic recording medium and the master information carrier with the magnetic recording medium and the master information carrier held in close contact with each other, and a conveyor which conveys the magnetic recording medium between the magnetic recording medium holding means and the magnetic transfer means. The magnetic recording medium holding stocker, the magnetic transfer apparatus and the conveyor are formed of material which contains substantially no chlorine, sulfur compound or nitric oxide at least at a part which is brought into contact with the magnetic recording medium.
摘要翻译： 磁传输系统包括保持多个磁记录介质的磁记录介质储料器，磁传送装置，其通过向磁记录介质施加传递磁场而将主磁信号载体上由磁层表示的信息磁传递到磁记录介质 记录介质和具有磁记录介质和主信息载体彼此紧密接触的主信息载体，以及在磁记录介质保持装置和磁传送装置之间传送磁记录介质的传送器。 磁记录介质保持储存器，磁转移装置和输送机由至少在与磁记录介质接触的部分基本上不含氯，硫化合物或一氧化氮的材料形成。
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公开(公告)号：US06879452B2
公开(公告)日：2005-04-12
申请号：US10322437
申请日：2002-12-19
CPC分类号： G11B5/7315 , G11B5/865
摘要： A master information carrier includes a base sheet provided with a pattern representing a signal and a magnetic layer formed on the pattern. A transfer magnetic field is applied to a slave medium in a close contact with the master information carrier to magnetically transfer the signal from the master information carrier to the slave medium. The coefficient of thermal expansion of the base sheet of the master information carrier is in the range of 5×10−6/° C. to 25×10−6/° C., and the thermal expansion difference in different directions of the base sheet of the master information carrier is not larger than 8×10−6/° C.
摘要翻译： 主信息载体包括设置有表示信号的图案的基片和形成在图案上的磁性层。 传递磁场与主信息载体紧密接触地施加到从属介质，以将信号从主信息载体磁传输到从介质。 主信息载体的基片的热膨胀系数在5×10 -6 /℃至25×10 -6 /℃的范围内，基底的不同方向的热膨胀差 主信息载体的片材不大于8×10 -6 /℃。
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