公开(公告)号：US20080299416A1

公开(公告)日：2008-12-04

申请号：US12018270

申请日：2008-01-23

申请人： Seong-yong YOON ,  Chee-kheng Lim ,  Hoo-san Lee ,  Hoon-sang Oh ,  Sok-hyun Kong

发明人： Seong-yong YOON ,  Chee-kheng Lim ,  Hoo-san Lee ,  Hoon-sang Oh ,  Sok-hyun Kong

IPC分类号： G11B5/62 ,  G11B5/66 ,  G11B5/84 ,  G11B5/65

CPC分类号： G11B5/667 ,  G11B5/64 ,  G11B5/65 ,  G11B5/7325 ,  G11B5/84

摘要： A perpendicular magnetic recording medium and a method of manufacturing the same are provided. The perpendicular magnetic recording medium comprises a recording layer including a plurality of regions formed in the depth direction of the recording layer and a magnetic anisotropy constant of a region relatively deeper than another region, among the plurality of regions, is greater than that of the another region. The method of manufacturing a perpendicular magnetic recording medium includes: forming a recording layer having perpendicular magnetic anisotropy; and irradiating the recording layer with ions.

摘要翻译： 提供了一种垂直磁记录介质及其制造方法。 垂直磁记录介质包括记录层，该记录层包括在记录层的深度方向上形成的多个区域和多个区域中比另一区域相对更深的区域的磁各向异性常数大于另一区域的磁各向异性常数 地区。 制造垂直磁记录介质的方法包括：形成具有垂直磁各向异性的记录层; 并用离子照射记录层。

公开(公告)号：US20090317663A1

公开(公告)日：2009-12-24

申请号：US12485093

申请日：2009-06-16

申请人： Sok-hyun KONG ,  Hyung-ik LEE ,  Hoo-san LEE ,  Young-su CHUNG ,  Seong-yong YOON

发明人： Sok-hyun KONG ,  Hyung-ik LEE ,  Hoo-san LEE ,  Young-su CHUNG ,  Seong-yong YOON

IPC分类号： G11B5/725 ,  G11B5/72

CPC分类号： G11B5/72

摘要： 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.

摘要翻译： 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 。

公开(公告)号：US20090274933A1

公开(公告)日：2009-11-05

申请号：US12277416

申请日：2008-11-25

申请人： Seong-yong YOON ,  Hoo-san LEE ,  Sok-hyun KONG

发明人： Seong-yong YOON ,  Hoo-san LEE ,  Sok-hyun KONG

IPC分类号： G11B5/667 ,  G11B5/738 ,  G11B5/72

CPC分类号： G11B5/667 ,  G11B5/7379

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20090197119A1

公开(公告)日：2009-08-06

申请号：US12137318

申请日：2008-06-11

申请人： Sok-hyun KONG ,  Seong-yong YOON ,  Hoo-san LEE

发明人： Sok-hyun KONG ,  Seong-yong YOON ,  Hoo-san LEE

IPC分类号： G11B5/62

CPC分类号： G11B5/65 ,  G11B5/66 ,  G11B5/667

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20110249357A1

公开(公告)日：2011-10-13

申请号：US13080815

申请日：2011-04-06

申请人： Seong-yong YOON ,  Tac-won Kim

发明人： Seong-yong YOON ,  Tac-won Kim

IPC分类号： G11B15/04 ,  G11B5/82 ,  G11B21/02 ,  G11B5/09

CPC分类号： G11B5/02 ,  G11B19/04 ,  G11B20/00086 ,  G11B20/10212 ,  G11B20/1217 ,  G11B2005/001 ,  G11B2020/1238 ,  G11B2220/2516

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20090155628A1

公开(公告)日：2009-06-18

申请号：US12106852

申请日：2008-04-21

申请人： Myung-bok LEE ,  Jin-seung SOHN ,  Seong-yong YOON

发明人： Myung-bok LEE ,  Jin-seung SOHN ,  Seong-yong YOON

IPC分类号： G11B5/66 ,  G11B5/84

CPC分类号： G11B5/855 ,  G11B5/667 ,  G11B5/7325

摘要： A magnetic thin film structure, a magnetic recording medium including the same, and a method of manufacturing the magnetic recording medium are provided. The magnetic recording medium includes an under layer formed of a transition metal nitride on a substrate and a plurality of magnetic dots, which are unit recording regions, formed of a magnetic material having magnetic anisotropy energy between 106 erg/cc and 108 erg/cc.

摘要翻译： 提供一种磁性薄膜结构，包括该磁性薄膜结构的磁记录介质，以及制造该磁记录介质的方法。 磁记录介质包括由基板上的过渡金属氮化物形成的下层和作为单位记录区域的多个磁性点，磁性材料由磁性各向异性能量介于106erg / cc和108erg / cc之间。

公开(公告)号：US20080084635A1

公开(公告)日：2008-04-10

申请号：US11748566

申请日：2007-05-15

申请人： Du-hyun LEE ,  Seong-yong YOON ,  Jin-seung SOHN ,  Byung-kyu LEE

发明人： Du-hyun LEE ,  Seong-yong YOON ,  Jin-seung SOHN ,  Byung-kyu LEE

IPC分类号： G11B5/82

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/65 ,  G11B5/743 ,  G11B5/855

摘要： 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.

摘要翻译： 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。