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1.发明申请MAGNETIC TRANSFER MASTER CARRIER, MAGNETIC TRANSFER METHOD, AND MAGNETIC RECORDING MEDIUM 失效磁性传输主载波，磁传输方法和磁记录介质公开(公告)号：US20090251814A1
公开(公告)日：2009-10-08
申请号：US12419652
申请日：2009-04-07
申请人： Yoichi Nishida , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
发明人： Yoichi Nishida , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
摘要： The present invention provides a magnetic transfer master carrier which forms a magnetic pattern corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium when a magnetic field is applied to the perpendicular magnetic recording medium, with the magnetic master carrier and the perpendicular magnetic recording medium closely attached to each other, the carrier including: a base material having convex portions on its surface, the convex portions being provided corresponding to the pattern of information; a magnetic layer deposited on at least top surfaces of the convex portions, and having perpendicular magnetic anisotropy; and a soft magnetic layer deposited on the surface of the magnetic layer.
摘要翻译： 本发明提供了一种磁传递主载体，当磁性载体和垂直磁性载体和垂直磁记录介质施加磁场时，形成对应于待记录在垂直磁记录介质上的信息图形的磁图案 所述载体包括：在其表面上具有凸起部分的基材，所述凸部相应于所述信息图案设置; 沉积在所述凸部的至少顶表面上并具有垂直磁各向异性的磁性层; 以及沉积在磁性层的表面上的软磁性层。
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2.发明授权公开(公告)号：US07982984B2
公开(公告)日：2011-07-19
申请号：US12419652
申请日：2009-04-07
申请人： Yoichi Nishida , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
发明人： Yoichi Nishida , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
摘要： The present invention provides a magnetic transfer master carrier which forms a magnetic pattern corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium when a magnetic field is applied to the perpendicular magnetic recording medium, with the magnetic master carrier and the perpendicular magnetic recording medium closely attached to each other, the carrier including: a base material having convex portions on its surface, the convex portions being provided corresponding to the pattern of information; a magnetic layer deposited on at least top surfaces of the convex portions, and having perpendicular magnetic anisotropy; and a soft magnetic layer deposited on the surface of the magnetic layer.
摘要翻译： 本发明提供了一种磁传递主载体，当磁性载体和垂直磁性载体和垂直磁记录介质施加磁场时，形成对应于待记录在垂直磁记录介质上的信息图形的磁图案 所述载体包括：在其表面上具有凸起部分的基材，所述凸部相应于所述信息图案设置; 沉积在所述凸部的至少顶表面上并具有垂直磁各向异性的磁性层; 以及沉积在磁性层的表面上的软磁性层。
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公开(公告)号：US07974028B2
公开(公告)日：2011-07-05
申请号：US12411751
申请日：2009-03-26
申请人： Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
发明人： Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
摘要： A magnetic transfer master carrier of the present invention includes a base material having convex portions on its surface, the convex portions being provided corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer deposited at least on top surfaces of the convex portions, wherein when a magnetic field is applied to the magnetic transfer master carrier, the magnetic layer absorbs a magnetic flux so as to form a pattern of the magnetic field, wherein the magnetic layer includes at least two perpendicular magnetic anisotropic layers, and an antiferromagnetic coupling induction layer which is provided so as to be sandwiched in between two neighboring layers of all the perpendicular magnetic anisotropic layers, and to induce antiferromagnetic coupling therebetween.
摘要翻译： 本发明的磁转移主载体包括在其表面上具有凸起部分的基体材料，凸起部分是与要记录在垂直磁记录介质上的信息图形相对应的，以及至少沉积在顶部的磁性层 凸部的表面，其中当向磁传递主载体施加磁场时，磁层吸收磁通量以形成磁场的图案，其中磁层包括至少两个垂直的磁各向异性层 和反铁磁耦合感应层，其被设置成夹在所有垂直磁各向异性层的两个相邻层之间，并且在它们之间引起反铁磁耦合。
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4.发明申请MAGNETIC TRANSFER MASTER CARRIER, MAGNETIC TRANSFER METHOD, AND MAGNETIC RECORDING MEDIUM 审中-公开磁性传输主载波，磁传输方法和磁记录介质公开(公告)号：US20090303627A1
公开(公告)日：2009-12-10
申请号：US12477350
申请日：2009-06-03
申请人： Yoichi NISHIDA , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
发明人： Yoichi NISHIDA , Hideyuki Kubota , Masakazu Nishikawa , Makoto Nagao , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
摘要： A magnetic transfer master carrier including a base material having, in its surface, convex portions arranged correspondingly to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer having perpendicular magnetic anisotropy, the layer being provided on top and side surfaces of the convex portions, wherein the magnetic transfer master carrier forms a magnetic field pattern corresponding to the pattern of the information when a magnetic field is applied thereto.
摘要翻译： 磁性传递主载体，其包括基材，其表面上具有与要记录在垂直磁记录介质上的信息图形相对应的凸部，以及具有垂直磁各向异性的磁性层，该层位于顶部和 所述凸部的侧面，其中，当施加磁场时，所述磁转移主载体形成与所述信息的图案对应的磁场图案。
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公开(公告)号：US20090244748A1
公开(公告)日：2009-10-01
申请号：US12411751
申请日：2009-03-26
申请人： Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
发明人： Yoichi Nishida , Hideyuki Kubota , Makoto Nagao , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
摘要： A magnetic transfer master carrier of the present invention includes a base material having convex portions on its surface, the convex portions being provided corresponding to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer deposited at least on top surfaces of the convex portions, wherein when a magnetic field is applied to the magnetic transfer master carrier, the magnetic layer absorbs a magnetic flux so as to form a pattern of the magnetic field, wherein the magnetic layer includes at least two perpendicular magnetic anisotropic layers, and an antiferromagnetic coupling induction layer which is provided so as to be sandwiched in between two neighboring layers of all the perpendicular magnetic anisotropic layers, and to induce antiferromagnetic coupling therebetween.
摘要翻译： 本发明的磁转移主载体包括在其表面上具有凸起部分的基体材料，凸起部分是与要记录在垂直磁记录介质上的信息图形相对应的，以及至少沉积在顶部的磁性层 凸部的表面，其中当向磁传递主载体施加磁场时，磁层吸收磁通量以形成磁场的图案，其中磁层包括至少两个垂直的磁各向异性层 和反铁磁耦合感应层，其被设置成夹在所有垂直磁各向异性层的两个相邻层之间，并且在它们之间引起反铁磁耦合。
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6.发明申请MASTER CARRIER FOR MAGNETIC TRANSFER AND MAGNETIC RECORDING MEDIUM MANUFACTURED USING THE SAME 审中-公开使用其制造的磁性传输和磁记录介质的主载体公开(公告)号：US20090128958A1
公开(公告)日：2009-05-21
申请号：US12275284
申请日：2008-11-21
IPC分类号： G11B5/82
摘要： A magnetic transfer master substrate for transferring magnetic information thereof to a perpendicular recording magnetic recording medium in contact therewith under application of a magnetic field comprises a transfer surface area with a magnetic layer formed thereon in a pattern according to the magnetic information to be transferred to the perpendicular magnetic recording medium and a non-transfer surface area laying below said transfer surface area, wherein the magnetic layer has a perpendicular magnetic anisotropy of an anisotropy energy higher than 4×106 erg/cm3.
摘要翻译： 用于将磁信息传送到与施加磁场接触的垂直记录磁记录介质的磁转移母板基板包括根据要传送到 垂直磁记录介质和放置在所述转印表面区域之下的非转印表面区域，其中所述磁性层具有高于4×10 6 erg / cm 3的各向异性能的垂直磁各向异性。
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公开(公告)号：US20090244747A1
公开(公告)日：2009-10-01
申请号：US12410722
申请日：2009-03-25
IPC分类号： G11B5/86
摘要： To provide a magnetic transfer master carrier obtained by forming a perpendicular magnetic anisotropy magnetic layer over a surface of an original master which has a concavo-convex pattern, placing a base material against the formed perpendicular magnetic anisotropy magnetic layer, and separating the base material.
摘要翻译： 为了提供通过在具有凹凸图案的原始母板的表面上形成垂直磁各向异性磁性层而获得的磁转移主载体，将基材放置在形成的垂直磁各向异性磁性层上，并分离基材。
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8.发明授权公开(公告)号：US07522362B2
公开(公告)日：2009-04-21
申请号：US11185684
申请日：2005-07-21
申请人： Takashi Komine , Ryuji Sugita , Tadashi Yasunaga , Makoto Nagao
发明人： Takashi Komine , Ryuji Sugita , Tadashi Yasunaga , Makoto Nagao
CPC分类号： G11B5/865 , G11B5/59633
摘要： An amplitude servo pattern capable of providing accurate servo control through reproduced amplitude with reduced noise is provided. The amplitude servo pattern has servo burst signals composed of burst bit strings adjacently disposed in a track width direction. The burst bit strings are disposed such that the servo burst signals adjacently disposed in the track width direction have a phase difference with each other in a track direction.
摘要翻译： 提供能够通过具有降低的噪声的再现幅度提供精确的伺服控制的振幅伺服模式。 振幅伺服模式具有由相邻设置在轨道宽度方向上的突发位串组成的伺服脉冲串信号。 突发比特串被布置成使得在轨道宽度方向上相邻设置的伺服突发信号在轨道方向上具有彼此的相位差。
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公开(公告)号：US20080239533A1
公开(公告)日：2008-10-02
申请号：US12058740
申请日：2008-03-30
申请人： Makoto Nagao , Naoto Fujiwara , Tadashi Yasunaga , Ryuji Sugita , Takashi Komine
发明人： Makoto Nagao , Naoto Fujiwara , Tadashi Yasunaga , Ryuji Sugita , Takashi Komine
IPC分类号： G11B5/86
CPC分类号： G11B5/865
摘要： The present invention provides a method of magnetic transfer comprising: an initial magnetization step of performing an initial magnetization by applying a DC magnetic field perpendicular to a disk shaped perpendicular magnetic recording medium which is formed by laminating a soft magnetic layer and a magnetic layer on a substrate; an initial magnetization cleaning step of applying an in-plane magnetic field having an intensity larger than 100 [Oe] and less than an intensity of Hn, to the perpendicular magnetic recording medium after passed through the initial magnetization step in radial direction which directed from a center to an outer of the perpendicular magnetic recording medium. After or in a time of the magnetic transfer, a magnetic cleaning may be performed by applying an in-plane magnetic field having the same intensity as the initial magnetization cleaning step in radial direction instead of the initial magnetization cleaning or in combination.
摘要翻译： 本发明提供一种磁转移方法，包括：初始磁化步骤，通过施加垂直于盘形垂直磁记录介质的直流磁场来进行初始磁化，所述盘形垂直磁记录介质是通过在软磁层和磁性层上层压形成的 基质; 初始磁化清洁步骤，其在通过从径向方向引导的初始磁化步骤之后，向垂直磁记录介质施加强度大于100 [Oe]且小于Hn强度的面内磁场， 中心到垂直磁记录介质的外部。 在磁转移之后或之后，可以通过施加具有与初始磁化清洁步骤相同的强度的面内磁场而不是初始磁化清洁或组合来进行磁性清洁。
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公开(公告)号：US20060007569A1
公开(公告)日：2006-01-12
申请号：US11185684
申请日：2005-07-21
申请人： Takashi Komine , Ryuji Sugita , Tadashi Yasunaga , Makoto Nagao
发明人： Takashi Komine , Ryuji Sugita , Tadashi Yasunaga , Makoto Nagao
CPC分类号： G11B5/865 , G11B5/59633
摘要： An amplitude servo pattern capable of providing accurate servo control through reproduced amplitude with reduced noise is provided. The amplitude servo pattern has servo burst signals composed of burst bit strings adjacently disposed in a track width direction. The burst bit strings are disposed such that the servo burst signals adjacently disposed in the track width direction have a phase difference with each other in a track direction.
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