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61. 发明申请

US20090039560A1 APPARATUS AND METHOD FOR MANUFACTURING MAGNETIC RECORDING MEDIUM 审中-公开
标题翻译：用于制造磁记录介质的装置和方法
公开(公告)号：US20090039560A1
公开(公告)日：2009-02-12
申请号：US12185917
申请日：2008-08-05
申请人： Masakazu Nishikawa , Tadashi Yasunaga , Yoichi Nishida
发明人： Masakazu Nishikawa , Tadashi Yasunaga , Yoichi Nishida
IPC分类号： H05B6/00
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/865
摘要： The present invention provides an apparatus for manufacturing a magnetic recording medium including, a mold structure formed of a disc-shaped substrate having on a surface thereof a concavo-convex pattern having convex portions which correspond to a servo area and a data area of a magnetic recording medium; and an imprinting and magnetic field applying unit which transfers a concavo-convex pattern on the basis of the concavo-convex pattern of the mold structure into an imprint resist layer that is made of an imprint resist composition and that is formed on a magnetic layer of a magnetic recording medium base by pressing the mold structure against the imprint resist layer, and which transfers magnetism to the servo area by application of a magnetic field via the mold structure.
摘要翻译：本发明提供一种磁记录介质的制造装置，其特征在于，包括：由盘状基板形成的模具结构体，所述模具结构的表面具有凹凸图案，所述凹凸图案具有对应于伺服区域的凸部和磁性数据区域记录介质; 以及压印和磁场施加单元，其将基于模具结构的凹凸图案的凹凸图案转印成由抗蚀刻剂组合物制成的压印抗蚀剂层，并且形成在压电抗蚀剂组合物的磁性层上通过将模具结构压靠在抗压印层上而将磁记录介质基体，并且通过经由模具结构施加磁场将磁力传递到伺服区域。

62. 发明申请

US20090011367A1 INTERFACE BINDER, RESIST COMPOSITION CONTAINING THE SAME, LAMINATE FOR FORMING MAGNETIC RECORDING MEDIUM HAVING LAYER CONTAINING THE SAME, MANUFACTURING METHOD OF MAGNETIC RECORDING MEDIUM USING THE SAME, AND MAGNETIC RECORDING MEDIUM PRODUCED BY THE MANUFACTURING METHOD 审中-公开
标题翻译：界面粘合剂，含有它们的耐光组合物，用于形成含有该层的磁记录介质的层压体，使用该磁性记录介质的磁记录介质的制造方法和由制造方法生产的磁记录介质
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。

63. 发明申请

US20090002886A1 METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM, MAGNETIC RECORDING MEDIUM PRODUCED BY THE PRODUCTION METHOD, AND MOLD STRUCTURE FOR USE IN THE PRODUCTION METHOD 审中-公开
标题翻译：用于生产磁记录介质的方法，由生产方法生产的磁记录介质和用于生产方法的模具结构
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。

64. 发明申请

US20080241601A1 MOLD STRUCTURE, IMPRINTING METHOD USING THE SAME, MAGNETIC RECORDING MEDIUM AND PRODUCTION METHOD THEREOF 审中-公开
标题翻译：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
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。

65. 发明申请

US20060126202A1 Method of magnetic transfer and stopping slave medium rotation 失效
公开(公告)号：US20060126202A1
公开(公告)日：2006-06-15
申请号：US11349181
申请日：2006-02-08
申请人： Kazuhiro Niitsuma , Masakazu Nishikawa
发明人： Kazuhiro Niitsuma , Masakazu Nishikawa
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/012
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.

66. 发明授权

US07038868B2 Method of magnetic transfer and stopping slave medium rotation 失效
公开(公告)号：US07038868B2
公开(公告)日：2006-05-02
申请号：US10364353
申请日：2003-02-12
申请人： Kazuhiro Niitsuma , Masakazu Nishikawa
发明人： Kazuhiro Niitsuma , Masakazu Nishikawa
IPC分类号： G11B5/86
CPC分类号： G11B5/865 , G11B5/012
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.

67. 发明授权

US06977786B2 Information recording method using a vertical magnetic system 失效
标题翻译：使用垂直磁系统的信息记录方法
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。

68. 发明申请

US20050213236A1 Master information carrier for magnetic transfer, magnetic transfer method, and magnetic recording medium 失效
标题翻译：磁传输主磁信号载体，磁转移方式和磁记录介质
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。

69. 发明申请

US20050200995A1 Method and apparatus for magnetic transfer 失效
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.

70. 发明申请

US20050200994A1 Magnetic transfer apparatus 失效
公开(公告)号：US20050200994A1
公开(公告)日：2005-09-15
申请号：US11121933
申请日：2005-05-05
申请人： Masakazu Nishikawa , Kazuhiro Niitsuma , Akito Kamatani
发明人： Masakazu Nishikawa , Kazuhiro Niitsuma , Akito Kamatani
IPC分类号： G11B5/596 , G11B5/82 , 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.

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