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公开(公告)号：US20050243467A1
公开(公告)日：2005-11-03
申请号：US11115116
申请日：2005-04-27
CPC分类号： G11B11/10584 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording medium having high reliability is provided, in which concave portions between recording elements formed as convex portions of a concavo-convex pattern are approximately completely filled with a non-magnetic material. The magnetic recording medium is a plate-like body including: a substrate; a recording layer that is formed in a predetermined concavo-convex pattern over the substrate and includes recording elements for recording information formed as convex portions of the concavo-convex pattern; and the non-magnetic material filling concave portions between the recording elements. Side faces of the recording elements are inclined to face a surface of the plate-like body on a side toward which the recording elements 16 project in the concavo-convex pattern. An inclination angle of the side faces of the recording elements with respect to a direction perpendicular to that surface is smaller than 90° and 5° or more.
摘要翻译： 提供了具有高可靠性的磁记录介质，其中形成为凹凸图案的凸部的记录元件之间的凹部大致完全填充有非磁性材料。 磁记录介质是板状体，包括：基板; 记录层，其形成在所述基板上的预定的凹凸图案中，并且包括用于记录形成为所述凹凸图案的凸部的信息的记录元件; 和非磁性材料填充记录元件之间的凹部。 记录元件的侧面在记录元件16突出于凹凸图案的一侧面对板状体的表面倾斜。 记录元件的侧面相对于与该表面垂直的方向的倾斜角度小于90°和5°以上。
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公开(公告)号：US20050233176A1
公开(公告)日：2005-10-20
申请号：US11085522
申请日：2005-03-22
CPC分类号： G11B5/855
摘要： In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
摘要翻译： 在其中形成在基板的至少一个面e上并且其中形成有预定的凸/凹图案的磁性层的各个凹部填充有非磁性材料和非磁性的信息记录介质中 在磁性层的各个凸部的各个上表面的至少部分区域中，由非磁性材料形成层，非磁性层形成为使得其部分在凸部突出的方向上进一步突出， 其他部分的非磁性层。
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公开(公告)号：US07604880B2
公开(公告)日：2009-10-20
申请号：US11085522
申请日：2005-03-22
CPC分类号： G11B5/855
摘要： In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.
摘要翻译： 在其中形成在基板的至少一个面e上并且其中形成有预定的凸/凹图案的磁性层的各个凹部填充有非磁性材料和非磁性的信息记录介质中 在磁性层的各个凸部的各个上表面的至少部分区域中，由非磁性材料形成层，非磁性层形成为使得其部分在凸部突出的方向上进一步突出， 其他部分的非磁性层。
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公开(公告)号：US07482070B2
公开(公告)日：2009-01-27
申请号：US11115116
申请日：2005-04-27
IPC分类号： G11B5/66
CPC分类号： G11B11/10584 , B82Y10/00 , G11B5/743 , G11B5/82 , G11B5/855
摘要： A magnetic recording medium having high reliability is provided, in which concave portions between recording elements formed as convex portions of a concavo-convex pattern are approximately completely filled with a non-magnetic material. The magnetic recording medium is a plate-like body including: a substrate; a recording layer that is formed in a predetermined concavo-convex pattern over the substrate and includes recording elements for recording information formed as convex portions of the concavo-convex pattern; and the non-magnetic material filling concave portions between the recording elements. Side faces of the recording elements are inclined to face a surface of the plate-like body on a side toward which the recording elements 16 project in the concavo-convex pattern. An inclination angle of the side faces of the recording elements with respect to a direction perpendicular to that surface is smaller than 90° and 5° or more.
摘要翻译： 提供了具有高可靠性的磁记录介质，其中形成为凹凸图案的凸部的记录元件之间的凹部大致完全填充有非磁性材料。 磁记录介质是板状体，包括：基板; 记录层，其形成在所述基板上的预定的凹凸图案中，并且包括用于记录形成为所述凹凸图案的凸部的信息的记录元件; 和非磁性材料填充记录元件之间的凹部。 记录元件的侧面在记录元件16突出于凹凸图案的一侧面对板状体的表面倾斜。 记录元件的侧面相对于与该表面垂直的方向的倾斜角度小于90°和5°以上。
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公开(公告)号：US20050287397A1
公开(公告)日：2005-12-29
申请号：US11135441
申请日：2005-05-24
CPC分类号： G11B5/855
摘要： A magnetic recording medium is provided which has good recording/reproducing characteristics with a recording layer divided in a number of recording elements by a predetermined concavo-convex pattern, and a manufacturing method that enables efficient manufacture of such a magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic layer formed over the substrate, a recording layer formed over the soft magnetic layer such as to have magnetic anisotropy in a direction perpendicular to surface, and being divided in a number of recording elements by a predetermined concavo-convex pattern, and a non-magnetic intermediate layer formed between the recording layer and the soft magnetic layer. The recording elements are formed to have a predetermined track shape in a data region.
摘要翻译： 提供了具有良好的记录/再现特性的磁记录介质，其中记录层通过预定的凹凸图案分成多个记录元件，并且能够有效地制造这种磁记录介质的制造方法。 磁记录介质包括基板，形成在基板上的软磁层，形成在软磁层上的记录层，以便在垂直于表面的方向上具有磁各向异性，并被多个记录元件划分为 预定的凹凸图案和形成在记录层和软磁性层之间的非磁性中间层。 记录元件形成为在数据区域中具有预定轨迹形状。
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6.发明授权公开(公告)号：US07597972B2
公开(公告)日：2009-10-06
申请号：US11135441
申请日：2005-05-24
IPC分类号： G11B5/667
CPC分类号： G11B5/855
摘要： A magnetic recording medium is provided which has good recording/reproducing characteristics with a recording layer divided in a number of recording elements by a predetermined concavo-convex pattern, and a manufacturing method that enables efficient manufacture of such a magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic layer formed over the substrate, a recording layer formed over the soft magnetic layer such as to have magnetic anisotropy in a direction perpendicular to surface, and being divided in a number of recording elements by a predetermined concavo-convex pattern, and a non-magnetic intermediate layer formed between the recording layer and the soft magnetic layer. The recording elements are formed to have a predetermined track shape in a data region.
摘要翻译： 提供了具有良好的记录/再现特性的磁记录介质，其中记录层通过预定的凹凸图案分成多个记录元件，并且能够有效地制造这种磁记录介质的制造方法。 磁记录介质包括基板，形成在基板上的软磁层，形成在软磁层上的记录层，以便在垂直于表面的方向上具有磁各向异性，并被多个记录元件划分为 预定的凹凸图案和形成在记录层和软磁性层之间的非磁性中间层。 记录元件形成为在数据区域中具有预定轨迹形状。
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7.发明授权公开(公告)号：US07158340B2
公开(公告)日：2007-01-02
申请号：US11111943
申请日：2005-04-22
IPC分类号： G11B5/596
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/59655 , G11B5/743 , G11B5/82
摘要： The burst pattern shape in a discrete medium is set to a shape (truncated quadrangular pyramid shape) having substantially trapezoidal shapes in a track width direction and in a track circumferential direction, respectively, and a predetermined relationship is satisfied among W1, W2, Tp, and Wr where W1 represents an upper side corresponding to the surface of a convex magnetic recording layer and W2 a lower side corresponding to the lower surface of the convex magnetic recording layer in the trapezoidal shape in the track width direction, Tp represents a data track pitch of a data information recording portion, and Wr represents a read width of a magnetic head. Therefore, the burst pattern shape makes it possible to largely reduce a production load in processing and still to obtain an accurate position error signal.
摘要翻译： 将离散介质中的突发图案形状分别设定为在轨道宽度方向和轨道圆周方向上具有大致梯形形状的形状（截头四角锥形状），并且在W 1，W 2， Tp和Wr，其中W 1表示对应于凸形磁记录层的表面的上侧，W 2表示与轨道宽度方向上的梯形形状的凸形磁记录层的下表面对应的下侧，Tp表示 数据信息记录部分的数据磁道间距，Wr表示磁头的读宽度。 因此，突发图案形状使得可以大大降低处理中的生产负荷，并且仍然获得精确的位置误差信号。
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8.发明申请公开(公告)号：US20050286155A1
公开(公告)日：2005-12-29
申请号：US11111943
申请日：2005-04-22
CPC分类号： G11B5/855 , B82Y10/00 , G11B5/59655 , G11B5/743 , G11B5/82
摘要： The burst pattern shape in a discrete medium is set to a shape (truncated quadrangular pyramid shape) having substantially trapezoidal shapes in a track width direction and in a track circumferential direction, respectively, and a predetermined relationship is satisfied among W1, W2, Tp, and Wr where W1 represents an upper side corresponding to the surface of a convex magnetic recording layer and W2 a lower side corresponding to the lower surface of the convex magnetic recording layer in the trapezoidal shape in the track width direction, Tp represents a data track pitch of a data information recording portion, and Wr represents a read width of a magnetic head. Therefore, the burst pattern shape makes it possible to largely reduce a production load in processing and still to obtain an accurate position error signal.
摘要翻译： 将离散介质中的突发图案形状分别设定为在轨道宽度方向和轨道圆周方向上具有大致梯形形状的形状（截头四角锥形状），并且在W 1，W 2， Tp和Wr，其中W 1表示对应于凸形磁记录层的表面的上侧，W 2表示与轨道宽度方向上的梯形形状的凸形磁记录层的下表面对应的下侧，Tp表示 数据信息记录部分的数据磁道间距，Wr表示磁头的读宽度。 因此，突发图案形状使得可以大大降低处理中的生产负荷，并且仍然获得精确的位置误差信号。
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9.发明申请Magnetic recording/reproducing device, magnetic recording medium, and magnetic head 审中-公开磁记录/再现装置，磁记录介质和磁头公开(公告)号：US20060132970A1
公开(公告)日：2006-06-22
申请号：US11297362
申请日：2005-12-09
IPC分类号： G11B5/127
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/1278 , G11B5/743
摘要： A perpendicular magnetic recording/reproducing device that can suppress broadening of recording magnetic fields and that is capable of effective application of magnetic field to a recording target track is provided. The device includes a magnetic recording medium having a soft magnetic layer and a recording layer having a perpendicular magnetic anisotropy formed in this order over a substrate, and a magnetic head. The soft magnetic layer is formed with a concavo-convex pattern in which at least part of regions corresponding to tracks of the recording layer protrudes toward the recording layer, and convex portions are provided with the magnetic anisotropy in the circumferential direction of the tracks. The magnetic head includes a main pole for generating a recording magnetic field, and a return pole to which the magnetic field returns, the main pole and the return pole being arranged side by side in a track width direction.
摘要翻译： 提供了一种能够抑制记录磁场扩大并且能够有效地将磁场施加到记录目标轨迹的垂直磁记录/再现装置。 该装置包括具有软磁性层和在基板上依次形成垂直磁各向异性的记录层的磁记录介质和磁头。 软磁性层形成为凹凸图案，其中对应于记录层的轨道的区域的至少一部分朝向记录层突出，并且凸部在轨道的圆周方向上具有磁各向异性。 磁头包括用于产生记录磁场的主极和磁场返回的返回极，主极和返回极在轨道宽度方向上并排布置。
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10.发明授权公开(公告)号：US07864468B2
公开(公告)日：2011-01-04
申请号：US12230307
申请日：2008-08-27
摘要： The magnetic recording and reproducing apparatus includes: a perpendicular recording magnetic recording medium including a track pattern including track portions and gap portions arranged so as to be alternately adjacent to each other in a cross-track direction, at least part of portions corresponding to the track portions being recording areas having the width substantially the same as the width of the track portions, portions between the recording areas being non-recording areas; and a magnetic head of a perpendicular recording type for applying a recording magnetic field to the recording areas. The anisotropic magnetic field Hk (T) of the recording areas of the magnetic recording medium and the recording magnetic field intensity Fw (t) of the recording magnetic field at the upper surface of the recording areas satisfy the following inequality (I): 0.23×Fw+1.2≦Hk≦0.26×Fw+1.6. (I)
摘要翻译： 磁记录和再现装置包括：垂直记录磁记录介质，其包括轨道图案，该轨道图案包括轨道部分和间隔部分，所述轨道部分和间隙部分沿交叉轨道方向彼此交替相邻布置，至少部分对应于轨道 部分是具有与轨道部分的宽度基本相同的宽度的记录区域，记录区域之间的部分是非记录区域; 以及用于将记录磁场施加到记录区域的垂直记录类型的磁头。 磁记录介质的记录区域的各向异性磁场Hk（T）和记录区域上表面的记录磁场的记录磁场强度Fw（t）满足以下不等式（I）：0.23× Fw + 1.2＆nlE; Hk＆nlE; 0.26×Fw + 1.6。 （一世）
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