公开(公告)号：US20090011367A1

公开(公告)日：2009-01-08

申请号：US12167648

申请日：2008-07-03

申请人： Tadashi Omatsu ,  Masakazu Nishikawa ,  Kenichi Moriwaki

发明人： Tadashi Omatsu ,  Masakazu Nishikawa ,  Kenichi Moriwaki

IPC分类号： G11B5/00 ,  G03C1/00 ,  C08L39/04

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B5/865

摘要： To provide an interface binder for binding a resist layer and a laminate for forming magnetic recording medium having a substrate and a magnetic layer, the interface binder containing a first functional group crosslinkable with a surface of the laminate, and a second functional group crosslinkable with the resist layer.

摘要翻译： 为了提供用于粘合抗蚀剂层的界面粘合剂和用于形成具有基材和磁性层的磁记录介质的层压体，所述界面粘合剂含有可与层压体的表面交联的第一官能团和与该层压体可交联的第二官能团 抗蚀剂层。

公开(公告)号：US20090002886A1

公开(公告)日：2009-01-01

申请号：US12147553

申请日：2008-06-27

申请人： Masakazu Nishikawa ,  Tadashi Yasunaga ,  Yoichi Nishida

发明人： Masakazu Nishikawa ,  Tadashi Yasunaga ,  Yoichi Nishida

IPC分类号： G11B5/74 ,  B29C33/32

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/743

摘要： The present invention provides a method for producing a magnetic recording medium having servo areas and data areas using a mold structure. The method includes at least forming an imprint resist layer on a substrate surface of a magnetic recording medium, forming a convexo-concave pattern in the imprint resist layer by pressing convex portions of the mold structure against the imprint resist layer, and transferring magnetism to the servo areas in the magnetic recording medium by applying a magnetic field via the mold structure, wherein the imprint resist layer is formed only on areas of the substrate surface corresponding to the data areas in the magnetic recording medium, and the magnetic field is applied to areas of the substrate surface corresponding to the servo areas, with the areas of the substrate surface corresponding to the servo areas being in contact with convex portions of the mold structure.

摘要翻译： 本发明提供一种使用模具结构制造具有伺服区域和数据区域的磁记录介质的方法。 该方法至少在磁记录介质的基板表面上形成压印抗蚀剂层，通过将模具结构的凸部压靠在抗蚀剂层上，在压印抗蚀剂层中形成凹凸图案，并将磁性转移到 通过经由模具结构施加磁场而在磁记录介质中的伺服区域，其中，仅在与磁记录介质中的数据区域对应的基板表面的区域上形成印记抗蚀剂层，并且将磁场施加到区域 对应于伺服区域的基板表面，其中基板表面的对应于伺服区域的区域与模具结构的凸部接触。

公开(公告)号：US20080241601A1

公开(公告)日：2008-10-02

申请号：US12059102

申请日：2008-03-31

申请人： Kenichi MORIWAKI ,  Toshihiro Usa ,  Masakazu Nishikawa

发明人： Kenichi MORIWAKI ,  Toshihiro Usa ,  Masakazu Nishikawa

IPC分类号： G11B5/84 ,  G11B5/62 ,  B44C1/22

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。

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

IPC分类号： G11B5/82 ,  G11B5/02 ,  G11B5/596 ,  G11B5/86 ,  G11B13/00

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。

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

IPC分类号： G11B5/596 ,  G11B5/65 ,  G11B5/82 ,  G11B5/86

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。

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

IPC分类号： G11B5/86 ,  G11B23/50

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.

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

IPC分类号： G11B5/73 ,  G11B5/82 ,  G11B5/86 ,  G11B17/00 ,  G11C11/15

CPC分类号： B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/865 ,  G11B17/00

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。

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

IPC分类号： G11B5/86 ,  G11B17/08 ,  G11B23/02

CPC分类号： G11B5/865 ,  G11B17/08 ,  G11B23/02

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。

公开(公告)号：US06804069B2

公开(公告)日：2004-10-12

申请号：US09942765

申请日：2001-08-31

申请人： Masakazu Nishikawa ,  Seiichi Watanabe

发明人： Masakazu Nishikawa ,  Seiichi Watanabe

IPC分类号： G11B586

CPC分类号： G11B5/865 ,  G11B5/82

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 magnetic transfer, said master carrier of magnetic transfer comprising servo areas to be transferred from the master carrier to the slave medium and data areas not to be transferred, both on the same plane.

摘要翻译： 本发明提供一种用于通过使用于磁转移的主载体和从属介质彼此紧密接触并且通过施加用于磁转移的磁场来传送信息的磁传递方法，所述磁传输主载架包括伺服区域 从主载波传输到从属介质和不传输的数据区，两者都在同一平面上。

公开(公告)号：US06735026B2

公开(公告)日：2004-05-11

申请号：US09920722

申请日：2001-08-03

申请人： Masakazu Nishikawa ,  Makoto Nagao

发明人： Masakazu Nishikawa ,  Makoto Nagao

IPC分类号： G11B586

CPC分类号： G11B5/865

摘要： Disclosed is a magnetic transfer method magnetically transferring information signals such as servo signals from a master medium to a slave medium, which is capable of preventing the occurrence of missing signals due to insufficient contact of the master medium and the slave medium originating from adhering of dust to the slave medium, thus increasing reliability. When the master medium bearing information signals and the slave medium are brought into close contacted with each other, and when a transfer magnetic field is applied to the master medium and the slave medium to magnetically transfer the information signal from the master medium to the slave medium, a metal thin film formed on a substrate of the master medium is electrically grounded, and charges of the master medium are removed, thus reducing a quantity of adhering dust.

摘要翻译： 公开了一种磁传输方法，其将诸如伺服信号的信息信号从主介质传送到从属介质，其能够防止由于主介质和源自灰尘附着的从属介质的不充分接触而发生缺失信号 到从属介质，从而提高可靠性。 当主介质承载信息信号和从属介质彼此紧密接触时，并且当传递磁场施加到主介质和从介质以将信息信号从主介质磁传输到从介质时 形成在主介质的基板上的金属薄膜电接地，并且除去主介质的电荷，从而减少粘附的灰尘的量。