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公开(公告)号：US08279555B2
公开(公告)日：2012-10-02
申请号：US12057406
申请日：2008-03-28
Applicant: Myung-bok Lee , Jin-seung Sohn , Hoo-san Lee
Inventor： Myung-bok Lee , Jin-seung Sohn , Hoo-san Lee
Abstract: A magnetic recording medium and a method of manufacturing the magnetic recording medium are provided. In order to increase the recording density of the magnetic recording medium, the magnetic recording medium is configured to multiple magnetic layers by consecutively forming a first magnetic layer having a thin film shape and a second magnetic layer comprising patterned magnetic bits. The first magnetic layer has a magnetic anisotropic coefficient greater than that of the second magnetic layer.
Abstract translation: 提供磁记录介质和制造磁记录介质的方法。 为了提高磁记录介质的记录密度，通过连续地形成具有薄膜形状的第一磁性层和包含图案化磁头的第二磁性层，将磁记录介质配置成多个磁性层。 第一磁性层的磁各向异性系数大于第二磁性层的磁各向异性系数。
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公开(公告)号：US08111486B2
公开(公告)日：2012-02-07
申请号：US12304627
申请日：2007-02-01
Applicant: Sung Dong Suh , Hyun Jei Kim , Hoo San Lee
Inventor： Sung Dong Suh , Hyun Jei Kim , Hoo San Lee
IPC: G11B5/55
CPC classification number: G11B5/4833 , G11B2005/0021
Abstract: A head gimbals assembly for a hard disk for use in a thermally assisted magnetic disk recording medium, in which a laser diode is applied so as to record information with high density. The head gimbals assembly for a hard disk having a plurality of suspensions, each of which is provided with a magnetic head positioned adjacent to a corresponding disk surface among the disks so as to record/reproduce information; a head gimbals body having a centrally formed pivot hole which allows the head gimbals body to be fitted in such a manner as to be rotatable in relation to the disks, the suspensions extending from one end of the head gimbals body; a coil rotator provided at the other end of the head gimbals body so as to rotate the head gimbals body about the pivot hole; and a laser assembly having one or more laser diodes and one or more wave guides, the light emitted from any of the laser diodes is guided to a corresponding magnetic head by the wave guides.
Abstract translation: 用于用于热辅助磁盘记录介质的硬盘的头部万向节组件，其中施加激光二极管以便以高密度记录信息。 具有多个悬架的具有多个悬架的头部万向节组件，每个悬架设置有与磁盘中相应的磁盘表面相邻定位的磁头，以便记录/再现信息; 具有中心形成的枢转孔的头部万向架主体，其允许头部万向架主体以相对于盘可旋转的方式安装，悬架从头部万向架主体的一端延伸; 线圈旋转器，设置在头部万向架主体的另一端，以使头部万向节主体绕枢轴孔旋转; 以及具有一个或多个激光二极管和一个或多个波导的激光组件，从任何激光二极管发出的光被波导引导到相应的磁头。
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公开(公告)号：US07948700B2
公开(公告)日：2011-05-24
申请号：US12127390
申请日：2008-05-27
Applicant: Hoo-san Lee , Sung-chul Lee , Hoon-sang Oh
Inventor： Hoo-san Lee , Sung-chul Lee , Hoon-sang Oh
IPC: G11B5/09
Abstract: Provided is a bit patterned medium including bridges which induce exchange coupling between adjacent bits in order to reduce a switching field difference resulting from different magnetization directions of bits. The bridges and the bits are integrally formed with each other. The bits are locally connected by the bridges. A magnetostatic force for each bit is reduced due to an exchange coupling between adjacent bits, thereby reducing a switching field distribution of the bits.
Abstract translation: 提供了包括桥的位图案化介质，其引起相邻位之间的交换耦合，以便减少由位的不同磁化方向引起的开关场差。 桥和钻头彼此一体形成。 这些位由桥接器本地连接。 由于相邻位之间的交换耦合，每个位的静磁力减小，从而减小位的开关场分布。
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公开(公告)号：US07903372B2
公开(公告)日：2011-03-08
申请号：US11329062
申请日：2006-01-11
Applicant: Hoo-san Lee , Young-hun Im , Yong-su Kim
Inventor： Hoo-san Lee , Young-hun Im , Yong-su Kim
CPC classification number: G11B5/1871 , G11B5/1278 , G11B5/3116 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
Abstract: A magnetic recording head and a method of manufacturing the same. The magnetic recording head includes a stack containing a main pole and a return pole. The stack includes a first magnetic layer having a groove formed therein; an insulating layer covering a surface of the groove; and a second magnetic layer pattern filling the groove covered with the insulating layer.
Abstract translation: 磁记录头及其制造方法。 磁记录头包括一个包含一个主极和一个返回极的堆叠。 堆叠包括其中形成有凹槽的第一磁性层; 覆盖所述槽的表面的绝缘层; 以及填充由绝缘层覆盖的沟槽的第二磁性层图案。
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公开(公告)号：US07799445B2
公开(公告)日：2010-09-21
申请号：US11477624
申请日：2006-06-30
Applicant: Hoon-sang Oh , Yong-su Kim , No-yeol Park , Hoo-san Lee , Chul-min Choi
Inventor： Hoon-sang Oh , Yong-su Kim , No-yeol Park , Hoo-san Lee , Chul-min Choi
IPC: G11B5/66
CPC classification number: G11B5/667
Abstract: A perpendicular magnetic recording medium including a soft magnetic underlayer. The perpendicular magnetic recording medium includes: a lower structural body including an anti-ferromagnetic layer; a first soft magnetic underlayer, a non-magnetic layer, and a second soft magnetic underlayer sequentially formed on the anti-ferromagnetic layer, where the thickness ratio of the second soft magnetic underlayer to that of the first soft magnetic underlayer is designed to be within specific range; and a recording layer formed on the second soft magnetic underlayer. Therefore, noise generated on the soft magnetic underlayer due to external magnetic fields of a magnetic head and a voice coil motor can be reduced greatly.
Abstract translation: 包括软磁性底层的垂直磁记录介质。 垂直磁记录介质包括：包括反铁磁层的下结构体; 顺序地形成在反铁磁层上的第一软磁性底层，非磁性层和第二软磁性底层，其中第二软磁性底层与第一软磁性底层的厚度比被设计为在 具体范围 以及形成在第二软磁性底层上的记录层。 因此，可以大大降低由于磁头和音圈电机的外部磁场而在软磁性底层上产生的噪声。
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Patent Agency Ranking
公开(公告)号：US20100147792A1
公开(公告)日：2010-06-17
申请号：US12708341
申请日：2010-02-18
Applicant: Hoo-san LEE , Young-hun IM , Yong-su KIM
Inventor： Hoo-san LEE , Young-hun IM , Yong-su KIM
IPC: G11B5/127
CPC classification number: G11B5/1871 , G11B5/1278 , G11B5/3116 , Y10T29/49039 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
Abstract: A magnetic recording head and a method of manufacturing the same. The magnetic recording head includes a stack containing a main pole and a return pole. The stack includes a first magnetic layer having a groove formed therein; an insulating layer covering a surface of the groove; and a second magnetic layer pattern filling the groove covered with the insulating layer.
Abstract translation: 磁记录头及其制造方法。 磁记录头包括一个包含一个主极和一个返回极的堆叠。 堆叠包括其中形成有凹槽的第一磁性层; 覆盖所述槽的表面的绝缘层; 以及填充由绝缘层覆盖的沟槽的第二磁性层图案。
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公开(公告)号：US20090323224A1
公开(公告)日：2009-12-31
申请号：US12304627
申请日：2007-02-01
Applicant: Sung Dong Suh , Hyun Jei Kim , Hoo San Lee
Inventor： Sung Dong Suh , Hyun Jei Kim , Hoo San Lee
IPC: G11B21/16
CPC classification number: G11B5/4833 , G11B2005/0021
Abstract: Disclosed is a head gimbals assembly for a hard disk for use in a thermally assisted magnetic disk recording medium, in which a laser diode is applied so as to record information with high density, and a method of assembling such a head gimbals assembly. The head gimbals assembly for a hard disk comprises: a plurality of suspensions, each of which is provided with a magnetic head positioned adjacent to a corresponding disk surface among the disks so as to record/reproduce information; a head gimbals body having a centrally formed pivot hole which allows the head gimbals body to be fitted in such a manner as to be rotatable in relation to the disks, the suspensions extending from one end of the head gimbals body; a coil rotator provided at the other end of the head gimbals body so as to rotate the head gimbals body about the pivot hole; and a laser assembly having one or more laser diodes and one or more wave guides, the light emitted from any of the laser diodes is guided to a corresponding magnetic head by the wave guides. According to the present invention, because the head gimbals assembly having a laser diode used for increasing a data recording density of a magnetic disk is not fixed to a suspension but fixed to a head gimbals body which serves as a support for the head gimbals assembly, the heat produced from the head gimbals assembly can be efficiently lowered. Furthermore, because the number of peripheral optical components of the suspension is reduced, the flight of a magnetic head can be smoothly performed, so that the recording/reproducing of high density data can be efficiently performed.
Abstract translation: 公开了一种用于热辅助磁盘记录介质的用于硬盘的头部万向节组件，其中应用激光二极管以高密度记录信息，以及组装这种头架万向节组件的方法。 用于硬盘的头部万向节组件包括：多个悬架，每个悬架设置有与磁盘中相应的盘表面相邻定位的磁头，以便记录/再现信息; 具有中心形成的枢转孔的头部万向架主体，其允许头部万向架主体以相对于盘可旋转的方式安装，悬架从头部万向架主体的一端延伸; 线圈旋转器，设置在头部万向架主体的另一端，以使头部万向节主体围绕枢转孔旋转; 以及具有一个或多个激光二极管和一个或多个波导的激光组件，从任何激光二极管发出的光被波导引导到相应的磁头。 根据本发明，由于具有用于增加磁盘的数据记录密度的激光二极管的头部万向节组件不固定到悬架上，而是固定到用作头部万向节组件的支撑件的头部万向节主体， 可以有效地降低从头部万向节组件产生的热量。 此外，由于悬架的周边光学部件的数量减少，所以可以平稳地执行磁头的飞行，从而可以有效地执行高密度数据的记录/再现。
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公开(公告)号：US20090316297A1
公开(公告)日：2009-12-24
申请号：US12485150
申请日：2009-06-16
Applicant: Hoo-san LEE , Sok-hyun Kong , Sung-chul Lee
Inventor： Hoo-san LEE , Sok-hyun Kong , Sung-chul Lee
IPC: G11B5/596
CPC classification number: G11B5/865 , G11B5/59638
Abstract: A servo master having a pattern capable of being magnetically transferred as a servo pattern to a magnetic recording medium, wherein the servo master is formed of a material having a magnetic anisotropic constant perpendicular to a surface of the magnetic recording medium. The magnetic transfer method can include preparing a servo master patterned with a servo pattern to be formed on a magnetic recording medium, and arranging the servo master on the magnetic recording medium and applying an external magnetic field to the servo master in a first direction perpendicular to a recording surface of the magnetic recording medium, and in a second direction parallel to the recording surface of the magnetic recording medium.
Abstract translation: 一种具有能够作为伺服图案磁转印到磁记录介质的图案的伺服主机，其中伺服主机由具有垂直于磁记录介质表面的磁各向异性常数的材料形成。 磁转移方法可以包括制备图案化的伺服母模，以形成在磁记录介质上的伺服模式，并将伺服主机布置在磁记录介质上，并在与伺服主机垂直的第一方向上向伺服主机施加外部磁场 磁记录介质的记录表面，并且在平行于磁记录介质的记录表面的第二方向上。
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39.发明授权Magnetic recording head having a pole structure formed on a same plane as and surrounded by a shield for reducing an antenna effect 失效磁记录头具有与用于减小天线效应的屏蔽件相同的平面上形成的极结构公开(公告)号：US07573676B2
公开(公告)日：2009-08-11
申请号：US11196412
申请日：2005-08-04
Applicant: Hoo-san Lee , Young-hun Im , Yong-su Kim
Inventor： Hoo-san Lee , Young-hun Im , Yong-su Kim
IPC: G11B5/17
CPC classification number: G11B5/147
Abstract: A magnetic recording head includes a return pole, a writing pole spaced a predetermined distance from the return pole, an induction writing coil forming a magnetic field on the writing pole, and a writing pole shield formed on the same plane as the writing pole.
Abstract translation: 磁记录头包括一个返回极，与返回极间隔预定距离的一个写入极，一个在写入极上形成一个磁场的感应写入线圈，和一个形成在与写入极相同的平面上的写入磁极屏蔽。
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公开(公告)号：US20090061259A1
公开(公告)日：2009-03-05
申请号：US12039112
申请日：2008-02-28
Applicant: Hoo-san LEE , Sung-chul LEE , Hoon-sang OH
Inventor： Hoo-san LEE , Sung-chul LEE , Hoon-sang OH
Abstract: A bit patterned medium in which an exchange coupling layer induces exchange coupling between adjacent bits in order to reduce a switching field difference resulting from different magnetization directions of bits. The exchange coupling layer is disposed either over or under a recording layer having a plurality of bits. The exchange coupling layer induces exchange coupling between a bit which is to be recorded and an adjacent bit and reduces a switching field difference resulting from a difference between the magnetization direction of the bit to be recorded and the magnetization direction of neighboring bits due to an exchange coupling force generated during the exchange coupling.
Abstract translation: 一种位图形介质，其中交换耦合层引起相邻位之间的交换耦合，以便减少由不同磁化方向引起的开关场差。 交换耦合层设置在具有多个位的记录层之上或之下。 交换耦合层引起要被记录的位和相邻位之间的交换耦合，并减少由于要记录的位的磁化方向与由于交换而产生的相邻位的磁化方向之间的差导致的开关场差 在交换耦合期间产生的耦合力。
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