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公开(公告)号：US20100053811A1
公开(公告)日：2010-03-04
申请号：US12481949
申请日：2009-06-10
申请人： Hiroto Takeshita
发明人： Hiroto Takeshita
IPC分类号： G11B5/127
CPC分类号： G11B5/82 , G11B5/314 , G11B5/667 , G11B2005/001 , G11B2005/0021
摘要： A magnetic storage apparatus includes a magnetic storage medium including a recording layer, and a backing layer including a portion having a Curie temperature lower than that of the recording layer, a recording head that generates a magnetic field for recording from a side of the recording layer opposite to another side on which the backing layer is provided, and a heater unit heating at least a part of an area in proximity to a target area for recording by the recording head.
摘要翻译： 一种磁存储装置，包括：包括记录层的磁存储介质和包括居里温度低于记录层的居里点的背衬层;记录头，其从记录层的一侧产生用于记录的磁场; 与设置有背衬层的另一侧相对，以及加热单元，加热由记录头记录的目标区域附近的区域的至少一部分。
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公开(公告)号：US07147940B2
公开(公告)日：2006-12-12
申请号：US10346342
申请日：2003-01-17
申请人： Maki Maeda , Hiroto Takeshita , Takuya Uzumaki
发明人： Maki Maeda , Hiroto Takeshita , Takuya Uzumaki
CPC分类号： G11B5/66
摘要： The present invention provides a perpendicular magnetic recording medium that reduces medium noise and achieves thermal stability of recording magnetization. This perpendicular magnetic recording medium has a substrate and a recording layer formed by single-layered magnetic nanoparticles that are aligned at uniform intervals. An auxiliary magnetic film that is thinner than the recording layer is interposed between the substrate and the recording layer. The magnetization of the magnetic nanoparticles is secured by the exchange interaction effect of the auxiliary magnetic film.
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3.发明授权公开(公告)号：US08329249B2
公开(公告)日：2012-12-11
申请号：US12402032
申请日：2009-03-11
申请人： Hiroto Takeshita
发明人： Hiroto Takeshita
摘要： Although dots and servo patterns are made of the same magnetic material, the dots have a relatively low coercive force so as to allow data deletion and rewrite by a magnetic head, while the servo patterns have a high coercive force compared with the coercive force of the dots. The coercive force of the servo patterns is strong enough so as to eliminate the influence of shape magnetic anisotropy.
摘要翻译： 虽然点和伺服图案由相同的磁性材料制成，但是这些点具有较低的矫顽力，以便允许数据被磁头删除和改写，而伺服模式与矫顽力相比具有较高的矫顽力 圆点 伺服模式的矫顽力足够强大，以消除形状磁各向异性的影响。
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公开(公告)号：US07258893B2
公开(公告)日：2007-08-21
申请号：US10704362
申请日：2003-11-07
申请人： Hiroto Takeshita , Takuya Uzumaki
发明人： Hiroto Takeshita , Takuya Uzumaki
CPC分类号： B82Y30/00 , B82Y10/00 , G11B5/732 , G11B5/7325 , G11B5/8404
摘要： A method of fabricating a magnetic recording medium is disclosed, including a monomolecular film formation step of forming a monomolecular film on a substrate and a magnetic film formation step of forming on the monomolecular film a magnetic film for recording magnetic information. In the monomolecular film formation step, it is preferable to form a perylene-based organic monomolecular film.
摘要翻译： 公开了一种制造磁记录介质的方法，包括在基板上形成单分子膜的单分子膜形成步骤和在单分子膜上形成用于记录磁信息的磁性膜的磁性膜形成步骤。 在单分子膜形成工序中，优选形成苝系有机单分子膜。
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公开(公告)号：US06277484B1
公开(公告)日：2001-08-21
申请号：US09167837
申请日：1998-10-07
IPC分类号： G11B566
CPC分类号： G11B5/66 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium using a substrate, such as a glass substrate, and having, in combination, superior magnetic and magnetic recording properties and good adhesion of a magnetic layer to the substrate. The magnetic recording medium has an intermediate layer of chromium between the substrate and an underlayer of Ni-based non-magnetic material on which a magnetic layer of Co-based magnetic alloy is superimposed. A method of producing the magnetic recording medium is also disclosed, wherein each of the layers is formed by a sputtering process at a sufficient pressure to promote granular growth of crystals of the layer.
摘要翻译： 使用诸如玻璃基板的基板的磁记录介质，并且具有优异的磁记录性能和磁记录性能以及磁性层与基板的良好粘附性。 该磁记录介质在衬底与叠层有Co基磁性合金磁性层的Ni基非磁性材料的底层之间具有铬的中间层。 还公开了一种制造磁记录介质的方法，其中每个层通过溅射工艺在足够的压力下形成以促进该层的晶体的颗粒生长。
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公开(公告)号：US20070223139A1
公开(公告)日：2007-09-27
申请号：US11509194
申请日：2006-08-23
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/1871 , G11B5/3116 , G11B5/3169 , Y10T29/49037
摘要： The method of the present invention is capable of highly precisely producing a magnetic head. The method comprises the steps of: forming a pole end part of a magnetic layer, which becomes a magnetic pole and which is formed on a surface of a work piece on which the magnetic head will be formed, into a prescribed shape; coating at least a top part of the magnetic layer with a stopper layer; coating a surface of the work piece, on which the stopper layer has been formed, with an insulating layer, whose polishing rate is higher than that of the stopper layer; polishing the surface of the work piece until the stopper layer, which coats the top part of the magnetic layer, is exposed from the insulating layer; and removing the stopper layer, which has been exposed in a surface of the magnetic layer.
摘要翻译： 本发明的方法能够高精度地制造磁头。 该方法包括以下步骤：形成磁性层的极端部，该磁性层成为磁极并形成在其上将形成磁头的工件的表面上形成规定的形状; 用止动层涂覆至少一个磁性层的顶部; 用绝缘层涂覆其上形成有阻挡层的工件的表面，其抛光速率高于阻挡层的抛光速率; 抛光工件的表面，直到覆盖磁性层的顶部的阻挡层从绝缘层露出; 并且去除已经暴露在磁性层的表面中的阻挡层。
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公开(公告)号：US20050249982A1
公开(公告)日：2005-11-10
申请号：US11088241
申请日：2005-03-23
申请人： Hiroto Takeshita , Maki Maeda , Takuya Uzumaki
发明人： Hiroto Takeshita , Maki Maeda , Takuya Uzumaki
CPC分类号： G11B5/66 , G11B5/012 , G11B5/656 , G11B2005/0029 , Y10T428/24975
摘要： A magnetic recording layer is formed on an auxiliary magnetic layer in a perpendicular magnetic recording medium. The auxiliary magnetic layer has the axis of easy magnetization in the vertical direction perpendicular to the surface of a substrate. The perpendicular magnetic recording medium reliably allows establishment of the magnetization in the auxiliary magnetic layer in the vertical direction. When a magnetic flux flows along the vertical direction perpendicular to the surface of the magnetic recording layer, the magnetic flux flows across the magnetic recording layer in the vertical direction. The magnetization is thus reliably established in the magnetic recording layer in the vertical direction. The magnetic field of a stronger intensity is thus leaked out of the magnetic recording layer in the vertical direction.
摘要翻译： 在垂直磁记录介质中的辅助磁性层上形成磁记录层。 辅助磁性层在垂直于衬底表面的垂直方向具有容易磁化的轴。 垂直磁记录介质可靠地允许在垂直方向上建立辅助磁性层中的磁化。 当磁通量沿垂直于磁记录层表面的垂直方向流动时，磁通量在垂直方向上流过磁记录层。 因此磁化在磁记录层中沿垂直方向可靠地建立。 因此，较强的强度的磁场在垂直方向从磁记录层泄漏出来。
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8.发明授权Method for manufacturing a magnetic hard disk having concentric magnetic tracks with flat surface 失效具有平坦表面的同心磁迹的磁性硬盘的制造方法公开(公告)号：US06586044B1
公开(公告)日：2003-07-01
申请号：US10256447
申请日：2002-09-27
IPC分类号： B05D512
CPC分类号： G11B5/72 , G11B5/82 , G11B5/8408 , G11B5/855
摘要： A magnetic hard disk having magnetic tracks for storing data which is read or written by a magnetic head floating immediately above the magnetic track while the magnetic hard disk is rotating, and the magnetic head rests on the magnetic hard disk while the magnetic hard disk is not rotating. One aspect of the present invention is that the magnetic hard disk comprises a non-magnetic substrate having a plurality of banks and grooves alternately and concentrically arranged thereon, a magnetic film formed on each of the banks, and non-magnetic material formed on an entire surface of the substrate all over the banks and grooves such that roughness of the upper surface of the non-magnetic material is in a range between 0.5 nm and 3 nm.
摘要翻译： 一种具有磁道的磁性硬盘，用于存储在磁性硬盘旋转时立即在磁道上方浮动的磁头读取或写入的数据，并且磁头在磁性硬盘不支持时磁头靠在磁性硬盘上 旋转。 本发明的一个方面是磁性硬盘包括一个非磁性基片，它具有交替地同心地布置在其上的多个堤和槽，形成在每个堤上的磁性膜，以及整个形成的非磁性材料 基板的表面遍及堤和槽，使得非磁性材料的上表面的粗糙度在0.5nm和3nm之间的范围内。
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9.发明授权Magnetic hard disk having concentric magnetic tracks with flat surface and fabrication method thereof 失效具有平坦表面的同心磁迹的磁性硬盘及其制造方法公开(公告)号：US06583957B1
公开(公告)日：2003-06-24
申请号：US09468962
申请日：1999-12-22
IPC分类号： G11B582
CPC分类号： G11B5/72 , G11B5/82 , G11B5/8408 , G11B5/855
摘要： A magnetic hard disk has magnetic tracks for storing data, which is read or written by a magnetic head floating immediately above the magnetic track while the magnetic hard disk is rotating. The magnetic head rests on the magnetic hard disk while the magnetic hard disk is not rotating. The magnetic hard disk comprises a non-magnetic substrate having a plurality of banks and grooves alternately and concentrically arranged thereon, a magnetic film formed on each of the banks, and a non-magnetic material formed on an entire surface of the substrate all over the banks and grooves such that roughness of the upper surface of the non-magnetic material is in a range between 0.5 nm and 3 nm.
摘要翻译： 磁性硬盘具有用于存储数据的磁道，用于在磁性硬盘旋转的同时在磁道正上方浮动的磁头读取或写入数据。 当磁盘不旋转时，磁头靠在磁性硬盘上。 磁性硬盘包括具有交替并同心地布置在其上的多个堤和槽的非磁性基板，在每个堤上形成的磁性膜，以及形成在基板的整个表面上的非磁性材料 堤和凹槽，使得非磁性材料的上表面的粗糙度在0.5nm和3nm之间的范围内。
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10.发明授权Magnetic recording medium having space dots and recording dots alternatively formed in the recording track and method of making the same 有权具有在记录轨道中交替形成的空间点和记录点的磁记录介质及其制造方法公开(公告)号：US08785009B2
公开(公告)日：2014-07-22
申请号：US12396797
申请日：2009-03-03
申请人： Hiroto Takeshita
发明人： Hiroto Takeshita
IPC分类号： G11B5/64
摘要： A magnetic recording medium includes a plurality of recording tracks magnetically continuous with respect to a recording direction and arranged intermittently in a track width direction, a plurality of recording dots intermittently formed in the recording tracks in the recording direction and a plurality of space dots alternately formed in the recording track with the recording dots in the recording direction and having a magnetic moment per unit area smaller than a magnetic moment per unit area of the recording dots.
摘要翻译： 磁记录介质包括相对于记录方向磁连续的多个记录磁道，并且沿磁道宽度方向间歇地布置，在记录方向间歇地形成在记录磁道上的多个记录点和交替形成的多个空间点 在具有记录方向的记录点的记录道中，每单位面积的磁矩小于记录点每单位面积的磁矩。
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