公开(公告)号：US08415035B2

公开(公告)日：2013-04-09

申请号：US11643775

申请日：2006-12-22

申请人： Hoo San Lee ,  Hoon Sang Oh ,  Sok Hyun Kong ,  Seong Yong Yoon

发明人： Hoo San Lee ,  Hoon Sang Oh ,  Sok Hyun Kong ,  Seong Yong Yoon

IPC分类号： G11B5/66

CPC分类号： G11B5/667 ,  G11B5/85

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07796360B2

公开(公告)日：2010-09-14

申请号：US11525828

申请日：2006-09-25

申请人： Young-hun Im ,  Hoo-san Lee ,  Yong-su Kim

发明人： Young-hun Im ,  Hoo-san Lee ,  Yong-su Kim

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3967

摘要： A perpendicular magnetic recording head and method of manufacturing the same are provided. The perpendicular magnetic recording head records or reads information on or from a perpendicular magnetic recording medium. The perpendicular magnetic recoding head includes a coil, a main pole, and a return pole. The coil serves as a source for generating a magnetic field. The main pole and the return pole constitute a magnetic path of the magnetic field. The main pole includes an end facing the perpendicular magnetic recording medium. The end includes a leading part serving as a front side and a trailing part serving as a rear side with respect to a movement direction of the perpendicular magnetic recording medium. Both edges of the trailing part are chamfered, and the leading part has a plane inclined with respect to an air-bearing surface (ABS). The return pole has an end spaced from the main pole, and the other end connected with the main pole.

摘要翻译： 提供了一种垂直磁记录头及其制造方法。 垂直磁记录头在垂直磁记录介质上记录或读取信息。 垂直磁记录头包括线圈，主极和返回极。 线圈用作产生磁场的源。 主极和返回极构成磁场的磁路。 主极包括面向垂直磁记录介质的一端。 该端部包括用作前侧的前导部分和用作相对于垂直磁记录介质的移动方向的后侧的后部。 尾部的两个边缘都被倒角，并且前导部分具有相对于空气轴承表面（ABS）倾斜的平面。 返回极具有与主极间隔开的端部，另一端与主极连接。

公开(公告)号：US20090002875A1

公开(公告)日：2009-01-01

申请号：US12018430

申请日：2008-01-23

申请人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

发明人： Hoo-san Lee ,  Hoon-sang Oh ,  Sung-hoon Choa

IPC分类号： G11B5/596 ,  B05D5/12

CPC分类号： G11B5/59655 ,  G11B5/59688

摘要： A magnetic recording medium and a method of fabricating the same are provided. The magnetic recording medium in which a position for magnetic recording is patterned with a magnetic material, includes a magnetic recording layer which includes a data area having a plurality of data tracks, and a servo area having a servo burst for following the data tracks, wherein the servo burst includes a plurality of bursts disposed in a zigzag structure along a downtrack direction, and each of the bursts includes a plurality of burst pieces having different coercivities from each other. The magnetic recording medium is subjected to two servo-recording processes, so that a signal similar to an alternative signal written in a burst having a burst pattern used in a related art continuous medium can be obtained.

摘要翻译： 提供了一种磁记录介质及其制造方法。 其中用磁性材料构图磁记录位置的磁记录介质包括磁记录层，该磁记录层包括具有多个数据磁道的数据区，以及具有用于跟随数据磁道的伺服脉冲串的伺服区，其中 伺服脉冲串包括沿着下行方向以锯齿形结构设置的多个脉冲串，并且每个脉冲串包括彼此具有不同矫顽力的多个脉冲片。 对磁记录介质进行两次伺服记录处理，从而可以获得类似于在现有技术的连续介质中使用的具有突发图案的突发中写入的备选信号的信号。

公开(公告)号：US20070206323A1

公开(公告)日：2007-09-06

申请号：US11348228

申请日：2006-02-07

申请人： Young-hun Im ,  Hoo-san Lee ,  Yong-su Kim

发明人： Young-hun Im ,  Hoo-san Lee ,  Yong-su Kim

IPC分类号： G11B5/147

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/1871

摘要： An asymmetric perpendicular magnetic recording head and a method of manufacturing the same, wherein the perpendicular magnetic recording head includes a read head for reading data from a magnetic recording layer and a write head for writing data on the magnetic recording layer. A main pole of the write head has a first surface facing toward the inside of the magnetic recording layer, a second surface opposing a data recording surface of the magnetic recording layer, and a third surface facing toward the outside of the magnetic recording layer and the first surface is asymmetric to the third surface. An angle between one of the first and third surfaces and the second surface may be greater than 90°.

摘要翻译： 一种非对称垂直磁记录头及其制造方法，其中垂直磁记录头包括用于从磁记录层读取数据的读头和用于在磁记录层上写数据的写头。 写头的主极具有朝向磁记录层的内部的第一表面，与磁记录层的数据记录表面相对的第二表面和面向磁记录层的外侧的第三表面， 第一表面与第三表面不对称。 第一和第三表面之一和第二表面之间的角度可以大于90°。

公开(公告)号：US20060181762A1

公开(公告)日：2006-08-17

申请号：US11353964

申请日：2006-02-15

申请人： Yun-woo Nam ,  Hoo-san Lee

发明人： Yun-woo Nam ,  Hoo-san Lee

IPC分类号： G02B26/00

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362

摘要： A method of manufacturing a micromirror array and a method of manufacturing an optical device having a micromirror. The method of manufacturing a micromirror array includes forming an adhesion layer on a substrate and a magnetic layer on the adhesion layer, patterning the adhesion layer and magnetic layer, magnetizing the magnetic layer and forming a bonding layer on each side of the adhesion layer and the magnetic layer. The substrate is severed into units, each unit including the adhesion layer, the magnetic layer, and the bonding layer. A mirror surface is formed on a side of the substrate to form a unit micromirror structure. The unit micromirror structure is then placed in a holder to form a micromirror array.

摘要翻译： 微镜阵列的制造方法以及具有微反射镜的光学元件的制造方法。 微镜阵列的制造方法包括在基板上形成粘合层，在粘合层上形成磁性层，图案化粘合层和磁性层，对磁性层进行磁化，在粘合层的两面形成接合层， 磁性层。 将基板切断为单位，每个单元包括粘合层，磁性层和粘合层。 在基板的一侧上形成镜面以形成单元微镜结构。 然后将单元微镜结构放置在保持器中以形成微镜阵列。

公开(公告)号：US20100233515A1

公开(公告)日：2010-09-16

申请号：US12722581

申请日：2010-03-12

申请人： Sok-hyun Kong ,  Hoo-san Lee ,  Sadayuki Watanabe ,  Shunji Takenoiri

发明人： Sok-hyun Kong ,  Hoo-san Lee ,  Sadayuki Watanabe ,  Shunji Takenoiri

IPC分类号： G11B5/706

CPC分类号： G11B5/66

摘要： A perpendicular type of magnetic recording medium has a multi-layered recording structure made up of a plurality of ferro-magnetic layers and a non-magnetic layer interposed between the plurality of ferro-magnetic layers, and the perpendicular magnetic anisotropy energy of the lower ferro-magnetic layer is greater than the perpendicular magnetic anisotropy energy of the upper ferro-magnetic layer. Accordingly, the lower ferro-magnetic layer may be easily magnetically reversed by a magnetic field applied during a write operation. Thus, the perpendicular type of magnetic recording medium exhibits an enhanced thermal stability and write-ability.

摘要翻译： 垂直型的磁记录介质具有由多个铁磁层和介于多个铁磁层之间的非磁性层构成的多层记录结构，并且下铁的垂直磁各向异性能 磁性层大于上磁铁层的垂直磁各向异性能。 因此，通过在写入操作期间施加的磁场，可以容易地使低铁磁性层磁性地反转。 因此，垂直型磁记录介质表现出增强的热稳定性和写入能力。

公开(公告)号：US20100220411A1

公开(公告)日：2010-09-02

申请号：US12781228

申请日：2010-05-17

申请人： Hyun jei Kim ,  Yong-su Kim ,  Hoon-sang Oh ,  Hoo-san Lee

发明人： Hyun jei Kim ,  Yong-su Kim ,  Hoon-sang Oh ,  Hoo-san Lee

IPC分类号： G11B5/127

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/314 ,  G11B5/3967 ,  G11B5/74 ,  G11B5/743 ,  G11B5/855 ,  G11B9/02 ,  G11B2005/0002

摘要： An information recording medium, a method of manufacturing the information recording medium, a read/write head, and a method of manufacturing the read/write head are provided. The information recording medium includes magnetic recording layers formed of a ferromagnetic substance and electrical recording layers formed of a ferroelectric substance. The read/write head includes an electromagnetic write head including a main pole, a return pole magnetically connected to the main pole but electrically isolated from the main pole, a magnetic field applicator which applies a magnetic field to the main pole, and a voltage source which applies a bias voltage to the main pole; a magnetic read head provided an a side of the electromagnetic write head; and an electrical read head provided on an other side of the electromagnetic write head.

摘要翻译： 提供信息记录介质，制造信息记录介质的方法，读/写头以及制造读/写头的方法。 信息记录介质包括由铁磁物质形成的磁记录层和由铁电物质形成的电记录层。 读/写头包括电磁写入头，其包括主极，磁极连接到主极但与主极电隔离的返回极，向主极施加磁场的磁场施加器，以及电压源 其对主极施加偏置电压; 磁读头提供电磁写头的一侧; 以及设置在电磁写入头的另一侧的电读取头。

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：US20090135527A1

公开(公告)日：2009-05-28

申请号：US12057406

申请日：2008-03-28

申请人： Myung-bok LEE ,  Jin-seung SOHN ,  Hoo-san LEE

发明人： Myung-bok LEE ,  Jin-seung SOHN ,  Hoo-san LEE

IPC分类号： G11B5/33

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/66 ,  G11B5/743 ,  G11B5/746 ,  G11B5/855

摘要： 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.

摘要翻译： 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。