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公开(公告)号：US20090274933A1
公开(公告)日：2009-11-05
申请号：US12277416
申请日：2008-11-25
Applicant: Seong-yong YOON , Hoo-san LEE , Sok-hyun KONG
Inventor： Seong-yong YOON , Hoo-san LEE , Sok-hyun KONG
CPC classification number: G11B5/667 , G11B5/7379
Abstract: Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a soft magnetic layer disposed on the substrate; a recording layer disposed on the soft magnetic layer; and at least one hardness enhancing layer disposed in the soft magnetic layer or interposed between the soft magnetic layer and the recording layer.
Abstract translation: 提供了一种垂直磁记录介质。 垂直磁记录介质包括：基板; 设置在所述基板上的软磁性层; 设置在所述软磁性层上的记录层; 以及至少一个硬度增强层，其设置在所述软磁性层中或介于所述软磁性层和所述记录层之间。
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公开(公告)号：US20090197119A1
公开(公告)日：2009-08-06
申请号：US12137318
申请日：2008-06-11
Applicant: Sok-hyun KONG , Seong-yong YOON , Hoo-san LEE
Inventor： Sok-hyun KONG , Seong-yong YOON , Hoo-san LEE
IPC: G11B5/62
Abstract: Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a plurality of soft magnetic layers including a lower soft magnetic layer and an upper soft magnetic layer which are sequentially stacked on the substrate, wherein the upper soft magnetic layer has an anisotropic field greater than that of the lower soft magnetic layer; an isolating layer interposed between the lower and upper soft magnetic layers and preventing magnetic interaction between the lower and upper soft magnetic layers; an underlayer formed on the plurality of soft magnetic layers; and a recording layer formed on the underlayer and including a plurality of ferromagnetic layers each layer of which has a magnetic anisotropic energy which decreases as distance increases from the underlayer.
Abstract translation: 提供了一种垂直磁记录介质。 垂直磁记录介质包括：基板; 多个软磁层，包括顺序堆叠在基板上的下软磁层和上软磁层，其中上软磁层的各向异性磁场大于下软磁层的各向异性磁场; 插入在所述下软磁层和所述软磁性层之间的隔离层，并防止所述下软磁层和所述软磁性层之间的磁相互作用; 形成在所述多个软磁性层上的底层; 以及形成在所述底层上并且包括多个铁磁层的记录层，每个铁磁层具有随距离从所述底层距离增加而减小的磁各向异性能量。
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3.发明申请Perpendicular magnetic recording media including soft magnetic underlayer with diffusion barrier layer 审中-公开垂直磁记录介质包括具有扩散阻挡层的软磁底层公开(公告)号：US20070184307A1
公开(公告)日：2007-08-09
申请号：US11701489
申请日：2007-02-02
Applicant: Jae-Cheol Lee , Seong-yong Yoon , Hoon-sang Oh , Seul-ki Kim
Inventor： Jae-Cheol Lee , Seong-yong Yoon , Hoon-sang Oh , Seul-ki Kim
IPC: G11B5/66
CPC classification number: G11B5/667
Abstract: Provided are perpendicular magnetic recording media including a soft magnetic underlayer with a diffusion barrier layer. The soft magnetic underlayer includes an underlayer, a diffusion barrier layer, and an AFM layer, and a soft magnetic layer.
Abstract translation: 提供了包括具有扩散阻挡层的软磁性底层的垂直磁记录介质。 软磁性底层包括底层，扩散阻挡层和AFM层以及软磁性层。
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公开(公告)号：US20070183101A1
公开(公告)日：2007-08-09
申请号：US11655936
申请日：2007-01-22
Applicant: Seong-yong Yoon , Jae-cheol Lee , Yong-su Kim , Hoon-sang Oh
Inventor： Seong-yong Yoon , Jae-cheol Lee , Yong-su Kim , Hoon-sang Oh
CPC classification number: G11C11/16 , B82Y25/00 , G01R33/093 , G11B5/3929
Abstract: A magnetoresistance device that has a substrate, an underlayer, a magnetoresistance structure, and a diffusion barrier layer is provided. The underlayer is formed on top of the substrate. The magnetoresistance structure is formed on top of the underlayer. The diffusion barrier layer is formed between the underlayer and the magnetoresistance structure.
Abstract translation: 提供了具有基板，底层，磁阻结构和扩散阻挡层的磁阻器件。 底层形成在基板的顶部。 磁阻结构形成在底层的顶部。 扩散阻挡层形成在底层和磁阻结构之间。
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公开(公告)号：US08711503B2
公开(公告)日：2014-04-29
申请号：US13080815
申请日：2011-04-06
Applicant: Seong-yong Yoon , Tac-won Kim
Inventor： Seong-yong Yoon , Tac-won Kim
IPC: G11B5/09
CPC classification number: G11B5/02 , G11B19/04 , G11B20/00086 , G11B20/10212 , G11B20/1217 , G11B2005/001 , G11B2020/1238 , G11B2220/2516
Abstract: A method of protecting information written to a recording medium includes magnetizing the recording medium to form a first magnetic pattern corresponding to information to be stored, and magnetizing the recording medium to form a protective magnetic pattern having a phase difference of 180° from the first magnetic pattern at a position adjacent to where the first magnetic pattern is formed, with adjacent bits of the first magnetic pattern opposite and the protective magnetic pattern opposite to each other.
Abstract translation: 一种保护写入记录介质的信息的方法包括磁化记录介质以形成对应于要存储的信息的第一磁性图案，并且使记录介质磁化以形成与第一磁体相差180°的保护磁图形 在与形成第一磁性图案的位置相邻的位置处，第一磁性图案的相邻位与相互相反的保护磁性图案。
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Patent Agency Ranking
公开(公告)号：US08003163B2
公开(公告)日：2011-08-23
申请号：US11748566
申请日：2007-05-15
Applicant: Du-hyun Lee , Seong-yong Yoon , Jin-seung Sohn , Byung-kyu Lee
Inventor： Du-hyun Lee , Seong-yong Yoon , Jin-seung Sohn , Byung-kyu Lee
IPC: G11B5/82
Abstract: Provided are a magnetic recording medium and a method of manufacturing the magnetic recording medium. The magnetic recording medium includes a substrate, a soft magnetic underlayer formed on the substrate, a texturing layer formed on the soft magnetic underlayer and including a uniform pattern, and a recording layer including magnetic grains and a non-magnetic boundary region isolating the magnetic grains. The magnetic grains and the non-magnetic boundary region of the recording layer are formed into a regular granular structure by segregation according to the regular pattern of the texturing layer. Therefore, a regular granular structure can be formed in the recording layer without a process such as etching of the recording layer, so that the recording density of the magnetic recording medium can be largely improved.
Abstract translation: 提供磁记录介质和制造磁记录介质的方法。 磁记录介质包括基板，形成在基板上的软磁性底层，形成在软磁性底层上的包含均匀图案的纹理层，以及包括磁性颗粒和磁性颗粒隔离的非磁性边界区域的记录层 。 根据纹理层的规则图案，记录层的磁性颗粒和非磁性边界区域通过偏析形成规则的颗粒结构。 因此，可以在记录层中形成规则的颗粒结构，而不需要诸如蚀刻记录层的处理，从而可以大大提高磁记录介质的记录密度。
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公开(公告)号：US20090317663A1
公开(公告)日：2009-12-24
申请号：US12485093
申请日：2009-06-16
Applicant: Sok-hyun KONG , Hyung-ik LEE , Hoo-san LEE , Young-su CHUNG , Seong-yong YOON
Inventor： Sok-hyun KONG , Hyung-ik LEE , Hoo-san LEE , Young-su CHUNG , Seong-yong YOON
CPC classification number: G11B5/72
Abstract: Provided is a magnetic recording medium. The magnetic recording medium includes a substrate, a recording layer disposed on the substrate for magnetic recording, and a carbon protection layer, which includes a carbon layer and a blocking layer disposed in the carbon layer to block infiltration of external impurities, disposed on the recording layer. Since the blocking layer is disposed in the carbon layer, a thickness of the carbon protection layer can be reduced while a sufficient hardness to protect the recording layer can be ensured, and moreover, a softness of the surface of the carbon protection layer can be improved.
Abstract translation: 提供了一种磁记录介质。 磁记录介质包括基板，设置在用于磁记录的基板上的记录层，以及碳保护层，其包括设置在记录介质上的碳层和设置在碳层中的阻挡层以阻挡外部杂质的渗透 层。 由于阻挡层设置在碳层中，所以可以降低碳保护层的厚度，同时可以确保足够的硬度来保护记录层，而且能够提高碳保护层的表面的柔软性 。
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公开(公告)号：US20070298286A1
公开(公告)日：2007-12-27
申请号：US11643775
申请日：2006-12-22
Applicant: Hoo San Lee , Hoon Sang Oh , Sok Hyun Kong , Seong Yong Yoon
Inventor： Hoo San Lee , Hoon Sang Oh , Sok Hyun Kong , Seong Yong Yoon
IPC: G11B5/66
Abstract: A perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium includes: a perpendicular magnetic recording layer formed on a substrate; and at least one soft magnetic under-layer formed between the substrate and the perpendicular magnetic recording layer, wherein the soft magnetic under-layer is made from an alloy of a non-magnetic material and a magnetic material which exists in the form of granular nanoparticles in matrix of the non-magnetic material, and at least two of the magnetic nanoparticles are spaced apart from one another by a predetermined distance so as to mutually make an anti-ferromagnetic coupling.
Abstract translation: 提供垂直磁记录介质。 垂直磁记录介质包括：形成在基板上的垂直磁记录层; 以及形成在基板和垂直磁记录层之间的至少一个软磁底层，其中软磁底层由非磁性材料和磁性材料的合金制成，其以颗粒状纳米颗粒的形式存在 在非磁性材料的矩阵中，并且至少两个磁性纳米颗粒彼此隔开预定距离，以便相互进行反铁磁耦合。
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公开(公告)号：US08415035B2
公开(公告)日：2013-04-09
申请号：US11643775
申请日：2006-12-22
Applicant: Hoo San Lee , Hoon Sang Oh , Sok Hyun Kong , Seong Yong Yoon
Inventor： Hoo San Lee , Hoon Sang Oh , Sok Hyun Kong , Seong Yong Yoon
IPC: G11B5/66
Abstract: A perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium includes: a perpendicular magnetic recording layer formed on a substrate; and at least one soft magnetic under-layer formed between the substrate and the perpendicular magnetic recording layer, wherein the soft magnetic under-layer is made from an alloy of a non-magnetic material and a magnetic material which exists in the form of granular nanoparticles in matrix of the non-magnetic material, and at least two of the magnetic nanoparticles are spaced apart from one another by a predetermined distance so as to mutually make an anti-ferromagnetic coupling.
Abstract translation: 提供垂直磁记录介质。 垂直磁记录介质包括：形成在基板上的垂直磁记录层; 以及形成在基板和垂直磁记录层之间的至少一个软磁底层，其中软磁底层由非磁性材料和磁性材料的合金制成，其以颗粒状纳米颗粒的形式存在 在非磁性材料的矩阵中，并且至少两个磁性纳米颗粒彼此隔开预定距离，以便相互进行反铁磁耦合。
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10.发明申请METHOD OF OPTIMIZING FLYING HEIGHT OF HEAD AND HARD DISK DRIVE MANUFACTURED BY THE SAME 审中-公开优化由其制造的头和硬盘驱动器的飞行高度的方法公开(公告)号：US20120075744A1
公开(公告)日：2012-03-29
申请号：US13233845
申请日：2011-09-15
Applicant: Seong Yong YOON , Myung Wook Song , Chang-Hwan Lee , Su-Hyeon Kim
Inventor： Seong Yong YOON , Myung Wook Song , Chang-Hwan Lee , Su-Hyeon Kim
IPC: G11B21/12
CPC classification number: G11B5/6017
Abstract: A hard disk drive includes a controller that optimizes a flying height of a head of a hard disk drive. The controller determines an optimal flying height of a head based on a preset table value and an MRR value of a head measured during a hard disk drive manufacturing process and sets the head according the determined optimal flying height such that recording capacitance is improved.
Abstract translation: 硬盘驱动器包括一个优化硬盘驱动器头部飞行高度的控制器。 控制器基于预设表值和在硬盘驱动器制造过程中测量的磁头的MRR值来确定磁头的最佳飞行高度，并根据确定的最佳飞行高度设置磁头，使得记录电容得到改善。
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