公开(公告)号：US20080050616A1

公开(公告)日：2008-02-28

申请号：US11713730

申请日：2007-03-05

Applicant: Myung-bok Lee ,  Jin-seung Sohn ,  Byung-kyu Lee ,  Du-hyun Lee

Inventor： Myung-bok Lee ,  Jin-seung Sohn ,  Byung-kyu Lee ,  Du-hyun Lee

IPC: G11B5/66 ,  B05D5/12

CPC classification number: G11B5/855 ,  G11B5/66 ,  G11B5/7379 ,  G11B5/858 ,  H01F10/123 ,  H01F10/16 ,  H01F10/265 ,  H01F41/34

Abstract: Provided are a method of manufacturing a magnetic layer, a patterned magnetic recording medium including magnetic layers formed using the method, and a method of manufacturing the patterned magnetic recording medium. The method of manufacturing the magnetic layers includes: forming a template provided with an opening; forming a seed layer on a bottom of the opening; and inserting a magnetic material onto the seed layer to form a magnetic layer. The patterned magnetic recording medium includes a lower layer formed on a substrate; a template formed on the lower layer and including a plurality of holes exposing the lower layer; seed layers covering the lower layer exposed through the holes; and magnetic layers formed on the seed layers to fill the holes.

Abstract translation: 提供了一种制造磁性层的方法，包括使用该方法形成的磁性层的图案化磁记录介质以及制造图案化磁记录介质的方法。 制造磁性层的方法包括：形成设置有开口的模板; 在开口的底部形成种子层; 以及将磁性材料插入种子层以形成磁性层。 图案化的磁记录介质包括形成在基板上的下层; 模板，其形成在下层上并且包括暴露下层的多个孔; 覆盖通过孔露出的下层的种子层; 以及形成在种子层上以填充孔的磁性层。

公开(公告)号：US20070081427A1

公开(公告)日：2007-04-12

申请号：US11506889

申请日：2006-08-21

Applicant: Sung-dong Suh ,  Jin-seung Sohn ,  Byung-Kyu Lee ,  Eun-hyoung Cho

Inventor： Sung-dong Suh ,  Jin-seung Sohn ,  Byung-Kyu Lee ,  Eun-hyoung Cho

IPC: G11B11/00

CPC classification number: G11B5/1278 ,  G11B7/1387 ,  G11B2005/0021

Abstract: A light delivery module having a structure in which components can be precisely aligned and be integrated as a single unit, and a heat-assisted magnetic recording (HAMR) head employing the light delivery module. The light delivery module includes: a base having a first groove; a light source mounted on the base; an optical device that is installed on the base and guides light radiated from the light source; a cover member that is bonded to the base to protect the light source and the optical device and has a second groove facing the first groove; and a nano aperture bonded in the first and second grooves to form an enhanced near-field by adjusting the distribution of the light transmitted through the optical device.

Abstract translation: 一种光输送模块，其具有可以将部件精确对准并被整合为单个单元的结构，以及采用该光输送模块的热辅助磁记录（HAMR）头。 光输送模块包括：具有第一凹槽的底座; 安装在基座上的光源; 光学装置，安装在基座上并引导从光源照射的光; 盖构件，其接合到所述基座以保护所述光源和所述光学装置，并具有面向所述第一凹槽的第二凹槽; 以及通过调节透过光学器件的光的分布而在第一和第二沟槽中结合的纳米孔，以形成增强的近场。

公开(公告)号：US07108926B2

公开(公告)日：2006-09-19

申请号：US10029701

申请日：2001-12-31

Applicant: Byung-kyu Lee

Inventor： Byung-kyu Lee

IPC: G11B5/66 ,  G11B5/70

CPC classification number: G11B5/66

Abstract: Provided is a perpendicular magnetic recording medium including a perpendicular magnetic enhancement layer having a thickness of 15 nm or greater between a substrate and a perpendicular magnetic recording layer.

公开(公告)号：US20060198950A1

公开(公告)日：2006-09-07

申请号：US11367452

申请日：2006-03-06

Applicant: Byung-kyu Lee

Inventor： Byung-kyu Lee

IPC: B05D5/12 ,  G03C5/00

CPC classification number: G11B5/855 ,  G03F1/50 ,  G03F1/54 ,  G03F7/2014

Abstract: Provided is a method of manufacturing a patterned recording medium. The method includes depositing a magnetic thin film on a substrate, aligning a hard mask that has a plurality of penetration holes regularly distributed therein above the magnetic thin film, irradiating the hard mask, and removing the hard mask.

Abstract translation: 提供了一种制造图案化记录介质的方法。 该方法包括在基板上沉积磁性薄膜，对准具有规则分布在磁性薄膜上方的多个穿透孔的硬掩模，照射硬掩模，以及去除硬掩模。

公开(公告)号：US07101634B2

公开(公告)日：2006-09-05

申请号：US10456572

申请日：2003-06-09

Applicant: Byung-kyu Lee ,  Hoon-sang Oh

Inventor： Byung-kyu Lee ,  Hoon-sang Oh

IPC: G11B5/66 ,  G11B5/70

CPC classification number: G11B5/7325

Abstract: A perpendicular magnetic recording medium including a perpendicular magnetic recording layer placed over a substrate, and a multi-layered perpendicular orientation underlayer placed between the substrate and the perpendicular magnetic recording layer and having first and third underlayers each made of Pt or an alloy thereof. Due to the use of a three-layered perpendicular orientation underlayer, an excellent perpendicular orientation and a consistent crystal lattice of a Pt underlayer are obtained. Also, the perpendicular orientation underlayer has small crystal grains. Thus, the perpendicular orientation underlayer having excellent perpendicular orientation and small crystal grains enables a perpendicular magnetic recording layer to have a good thermal stability, a high recording density, and a high SNR.

Abstract translation: 包括放置在基板上的垂直磁记录层的垂直磁记录介质和放置在基板和垂直磁记录层之间的多层垂直取向底层，并且具有由Pt或其合金制成的第一和第三底层。 由于使用三层垂直取向底层，获得了Pt底层优异的垂直取向和一致的晶格。 此外，垂直取向底层具有小的晶粒。 因此，具有优异的垂直取向和小晶粒的垂直取向底层使得垂直磁记录层具有良好的热稳定性，高记录密度和高SNR。

公开(公告)号：US20050164035A1

公开(公告)日：2005-07-28

申请号：US11014239

申请日：2004-12-17

Applicant: Byung-kyu Lee ,  Hoon-sang Oh

Inventor： Byung-kyu Lee ,  Hoon-sang Oh

IPC: G11B5/65 ,  G11B5/64 ,  G11B5/66 ,  G11B5/667 ,  G11B5/738 ,  G11B5/855

CPC classification number: G11B5/855 ,  G11B5/66

Abstract: A magnetic recording medium including a magnetic recording layer containing magnetic crystal grains and a substrate supporting the magnetic recording layer. The magnetic recording layer is composed of a porous crystal isolating membrane having micropores capable of magnetically and physically isolating the magnetic crystal grains. A transition metal element selected from Co, Fe, Ni, Cr, Pt, Pd, Ti, Ta, Ru, Si, Al, Nb, B, Nd, Sm and Pr or an alloy thereof is impregnated into the pores. The magnetic recording medium has superior thermal stability and S/N characteristics.

Abstract translation: 一种磁记录介质，包括含有磁性晶粒的磁记录层和支撑该磁记录层的基板。 磁记录层由具有磁性和物理分离磁性晶粒的微孔的多孔结晶隔离膜组成。 将选自Co，Fe，Ni，Cr，Pt，Pd，Ti，Ta，Ru，Si，Al，Nb，B，Nd，Sm和Pr或其合金中的过渡金属元素浸渍到孔中。 磁记录介质具有优异的热稳定性和S / N特性。

公开(公告)号：US06916556B2

公开(公告)日：2005-07-12

申请号：US10032103

申请日：2001-12-31

Applicant: Byung-kyu Lee

Inventor： Byung-kyu Lee

IPC: G11B5/65 ,  G11B5/62 ,  G11B5/64 ,  G11B5/66 ,  G11B5/667 ,  G11B5/72 ,  G11B5/725 ,  G11B5/738 ,  G11B5/70

CPC classification number: G11B5/66 ,  Y10T428/265

Abstract: Provided is a perpendicular magnetic recording medium in which a perpendicular orientation promoting underlayer is formed between a substrate and a perpendicular magnetic recording layer for inducing the perpendicular orientation of the perpendicular magnetic recording layer, the perpendicular magnetic recording medium further including a crystal growth discontinuation layer between the substrate and the perpendicular orientation promoting underlayer for suppressing continuous crystal growth from the underlayer to the perpendicular magnetic recording layer. The effective suppression of crystal growth in the perpendicular magnetic recording layer results in low noise levels. Therefore, the perpendicular magnetic recording medium has high-density recording applications with increased signal-to-noise ratio.

Abstract translation: 提供了一种垂直磁记录介质，其中在基板和垂直磁记录层之间形成垂直取向促进底层，用于引起垂直磁记录层的垂直取向，垂直磁记录介质还包括晶体生长中断层之间， 衬底和用于抑制从底层到垂直磁记录层的连续晶体生长的垂直取向促进底层。 在垂直磁记录层中有效抑制晶体生长导致低的噪声水平。 因此，垂直磁记录介质具有增加的信噪比的高密度记录应用。

公开(公告)号：US20050129985A1

公开(公告)日：2005-06-16

申请号：US11008179

申请日：2004-12-10

Applicant: Hoon-sang Oh ,  Byung-kyu Lee ,  Kyung-jin Lee ,  Soo-youl Hong

Inventor： Hoon-sang Oh ,  Byung-kyu Lee ,  Kyung-jin Lee ,  Soo-youl Hong

IPC: G11B5/667 ,  G11B5/64 ,  G11B5/65 ,  G11B5/73

CPC classification number: G11B5/667 ,  G11B5/653 ,  G11B5/656 ,  Y10T428/265

Abstract: A perpendicular magnetic recording medium having a perpendicular magnetic recording layer provided on a substrate and a soft underlayer formed between the substrate and the perpendicular magnetic recording layer. The soft underlayer includes a plurality of soft underlayers having different saturation magnetizations so as to improve signal-to-noise ratio, and at least one of the soft underlayers has a magnetization easy axis in a radial direction so as to improve transition noise.

Abstract translation: 具有设置在基板上的垂直磁记录层和形成在基板和垂直磁记录层之间的软底层的垂直磁记录介质。 软底层包括具有不同的饱和磁化的多个软底层，以便提高信噪比，并且软底层中的至少一个在径向方向上具有易磁化轴，从而改善过渡噪声。

公开(公告)号：US5694277A

公开(公告)日：1997-12-02

申请号：US598822

申请日：1996-02-09

Applicant: Byung-Kyu Lee

Inventor： Byung-Kyu Lee

IPC: G11B5/127 ,  G11B5/187 ,  G11B5/255 ,  G11B5/31 ,  G11B5/53 ,  G11B5/23

CPC classification number: G11B5/255 ,  G11B5/127 ,  G11B5/1877 ,  G11B5/1878 ,  G11B5/3183 ,  G11B5/53

Abstract: A magnetic head for use in a VCR includes a pair of cores, a pair of sets of coils, an insulating member, a thin film magnetic layer and a thin film protection layer. Furthermore, a method for the manufacture of the magnetic head includes the steps of: providing a pair of cores having an "I" shaped core and a "C" shaped core; forming an insulating member between posterior portions of the cores, joining the cores with each other; depositing a thin film magnetic layer on a frontal face of each of the cores; patterning the thin film magnetic layer in such a way that the thin film magnetic layer has a horizontal slit; and depositing a thin film protection layer on top of the thin film magnetic layer, thereby forming the magnetic head. Since the magnetic head has the thin film protection layer and the thin film magnetic layer with the horizontal slit which encompasses a magnetic gap and has the width thereof narrower than that of the magnetic gap, it is possible to record magnetic signals on a magnetic tape at high densities or reproduce the magnetic signals thus recorded, and hence it may have a lengthened life span.

Abstract translation: 用于VCR的磁头包括一对芯，一对线圈，绝缘构件，薄膜磁性层和薄膜保护层。 此外，制造磁头的方法包括以下步骤：提供具有“I”形芯和“C”形芯的一对芯; 在所述芯的后部之间形成绝缘构件，将所述芯彼此接合; 在每个芯的正面上沉积薄膜磁性层; 以薄膜磁性层具有水平狭缝的方式构图薄膜磁性层; 并在薄膜磁性层的顶部上沉积薄膜保护层，从而形成磁头。 由于磁头具有薄膜保护层和具有包含磁隙的水平狭缝的薄膜磁性层，其宽度比磁隙的宽度窄，因此可以将磁信号记录在磁带上 高密度或再现由此记录的磁信号，因此它可以具有延长的寿命。