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1. 发明申请

US20080261081A1 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME 审中-公开
标题翻译：全能磁记录介质及其制造方法
公开(公告)号：US20080261081A1
公开(公告)日：2008-10-23
申请号：US12108205
申请日：2008-04-23
申请人： Hoo-san Lee , Sung-dong Suh , Tae-sang Park , Hoon-sang Ho
发明人： Hoo-san Lee , Sung-dong Suh , Tae-sang Park , Hoon-sang Ho
IPC分类号： G11B5/706 , B05D5/12
CPC分类号： G11B5/65 , G11B5/7325 , G11B5/84
摘要： Provided is a perpendicular magnetic recording medium and a method of manufacturing the same. The perpendicular magnetic recording medium includes a substrate, a buffer layer formed on the substrate, a soft magnetic underlayer formed on the buffer layer, and a recording layer formed on the soft magnetic underlayer.
摘要翻译：提供一种垂直磁记录介质及其制造方法。垂直磁记录介质包括基板，形成在基板上的缓冲层，形成在缓冲层上的软磁性底层，以及形成在软磁性底层上的记录层。

2. 发明授权

US07796360B2 Perpendicular magnetic recording head and method of manufacturing the same 失效
标题翻译：垂直磁记录头及其制造方法
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。

3. 发明申请

US20090002875A1 MAGNETIC RECORDING MEDIUM AND METHOD OF FABRICATING THE SAME 失效
标题翻译：磁记录介质及其制造方法
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。

4. 发明申请

US20070206323A1 Asymmetric type perpendicular magnetic recording head and method of manufacturing the same 审中-公开
标题翻译：不对称型垂直磁记录头及其制造方法
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°。

5. 发明申请

US20060181762A1 Method of manufacturing micromirror array and method of manufacturing optical device having micromirror 失效
标题翻译：制造微镜阵列的方法和制造具有微镜的光学装置的方法
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。

6. 发明授权

US08098456B2 Perpendicular magnetic recording head having a tapered main pole 失效
标题翻译：具有锥形主极的垂直磁记录头
公开(公告)号：US08098456B2
公开(公告)日：2012-01-17
申请号：US11413000
申请日：2006-04-28
申请人： Chee-kheng Lim , Yong-su Kim , Hoo-san Lee
发明人： Chee-kheng Lim , Yong-su Kim , Hoo-san Lee
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/11
摘要： A perpendicular magnetic recording head including: a data recording module comprising a main pole, a return pole, and a coil wrapped around the main pole; and a data reproduction module including magnetic shield layers and a reading device located between the magnetic shield layers, wherein the width of a lower end of the main pole is gradually reduced in a downward direction thereof, and the lower end of the main pole comprises a first part and a second part extending from the first part, the first part having a curved surface of a first curvature and the second part having a curved surface of a second curvature. The first curvature can be equal to or different from the second curvature, and magnetic shield devices can be further disposed on both sides of the lower end of the main pole.
摘要翻译：一种垂直磁记录头，包括：数据记录模块，包括主极，返回极和缠绕在主极上的线圈; 以及包括磁屏蔽层和位于磁屏蔽层之间的读取装置的数据再现模块，其中主极的下端的宽度在其向下的方向上逐渐减小，并且主极的下端包括第一部分和第二部分从第一部分延伸，第一部分具有第一曲率的曲面，第二部分具有第二曲率的曲面。第一曲率可以等于或不同于第二曲率，并且磁屏蔽装置可以进一步设置在主极的下端的两侧。

7. 发明授权

US08007931B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US08007931B2
公开(公告)日：2011-08-30
申请号：US11698081
申请日：2007-01-26
申请人： Hoo-san Lee , Chee-kheng Lim , Hoon-sang Oh , Sok-hyun Kong
发明人： Hoo-san Lee , Chee-kheng Lim , Hoon-sang Oh , Sok-hyun Kong
IPC分类号： G11B5/66
CPC分类号： G11B5/667 , Y10T428/24942
摘要： A perpendicular magnetic recording medium including: a substrate; a perpendicular magnetic recording layer disposed over the substrate; a soft magnetic underlayer disposed between the substrate and the perpendicular magnetic recording layer; a shunting layer disposed under the soft magnetic underlayer; and an isolation layer disposed between the soft magnetic underlayer and the shunting layer and providing magnetic isolation between the shunting layer and the other layers disposed over the shunting layer are provided. The shunting layer is magnetically separated from the other magnetic layers disposed over the shunting layer, and shunts a magnetic field generated by the magnetic domain walls of the soft magnetic underlayer such that the magnetic field cannot reach a magnetic head, thereby increasing a signal-to-noise ratio (SNR).
摘要翻译：一种垂直磁记录介质，包括：基板; 设置在所述基板上的垂直磁记录层; 设置在基板和垂直磁记录层之间的软磁性底层; 配置在软磁性底层下方的分路层; 并且设置在软磁性底层和分流层之间并且在分流层和设置在分流层之上的其它层之间提供磁隔离的隔离层。分流层与设置在分流层上的其他磁性层磁分离，并且分流由软磁性底层的磁畴壁产生的磁场，使得磁场不能到达磁头，从而增加信号到 - 噪声比（SNR）。

8. 发明授权

US07881002B2 Method of increasing recording density of hard disc drive and controlling device thereof 有权
标题翻译：增加硬盘驱动器的记录密度的方法及其控制装置
公开(公告)号：US07881002B2
公开(公告)日：2011-02-01
申请号：US11946074
申请日：2007-11-28
申请人： Hoo-san Lee , Hyun-jei Kim , Sung-hoon Choa , Hoon-sang Oh
发明人： Hoo-san Lee , Hyun-jei Kim , Sung-hoon Choa , Hoon-sang Oh
IPC分类号： G11B5/02
CPC分类号： G11B5/02 , G11B2005/001
摘要： Provided is a method of increasing recording density and a control apparatus for increasing the recording density. The method includes applying a recording current corresponding to a recording signal to a magnetic head of a hard disc drive (HDD), and limiting a current value being applied to the magnetic head to a critical value when the recording current reaches the critical value. In the method, a rising time is reduced by using an overshoot recording current and the recording current is limited to a critical value when an actual recording current reaches the critical value. Thus, write track widths (WTWs) can be reduced at a low recording frequency, thereby increasing tracks per inch (TPI).
摘要翻译：提供了增加记录密度的方法和用于提高记录密度的控制装置。该方法包括将对应于记录信号的记录电流施加到硬盘驱动器（HDD）的磁头，并且当记录电流达到临界值时将施加到磁头的电流值限制为临界值。在该方法中，通过使用过冲记录电流来降低上升时间，并且当实际记录电流达到临界值时，记录电流被限制在临界值。因此，可以在低记录频率下减小写轨道宽度（WTW），从而增加每英寸轨迹（TPI）。

9. 发明授权

US07869264B2 Information storage devices using magnetic domain wall movement and methods of operating the same 有权
标题翻译：信息存储设备采用磁畴壁运动和操作方式相同
公开(公告)号：US07869264B2
公开(公告)日：2011-01-11
申请号：US11980627
申请日：2007-10-31
申请人： Hoo-san Lee , Chee-kheng Lim , Hoon-sang Oh
发明人： Hoo-san Lee , Chee-kheng Lim , Hoon-sang Oh
IPC分类号： G11C11/00
CPC分类号： G11C11/14 , G11C19/0808 , Y10T428/11
摘要： An information storage device includes a record head and a data recording medium. The record head includes a magnetic substance having magnetic domain walls and records data in the data recording medium. In a method of operating the information storage device, a first high frequency current or a high frequency magnetic field is supplied to the magnetic substance while magnetic domain walls of the magnetic substance are moved.
摘要翻译：信息存储装置包括记录头和数据记录介质。记录头包括具有磁畴壁的磁性物质，并将数据记录在数据记录介质中。在操作信息存储装置的方法中，在磁性物质的磁畴壁移动的同时向磁性物质提供第一高频电流或高频磁场。

10. 发明授权

US07602584B2 Magnetic recording head with trapezoidal layered portion and method of manufacturing the same 失效
标题翻译：具有梯形分层部分的磁记录头及其制造方法
公开(公告)号：US07602584B2
公开(公告)日：2009-10-13
申请号：US11352316
申请日：2006-02-13
申请人： Hoo-san Lee , Yong-su Kim
发明人： Hoo-san Lee , Yong-su Kim
IPC分类号： G11B5/147
CPC分类号： G11B5/3163 , G11B5/1278
摘要： A magnetic recording head and a method of manufacturing the same are provided. The method includes layering sequentially first magnetic layer and an insulating cap layer on a first insulating layer; forming a mask pattern of a desired width on the insulating cap layer, and etching the first magnetic layer and the insulating cap layer until the first insulating layer is exposed, thereby forming a trapezoidal layered portion; depositing an insulating material on the first insulating layer to form a second insulating layer to bury a periphery of the trapezoidal layered portion; and forming a second magnetic layer on the second insulating layer.
摘要翻译：提供磁记录头及其制造方法。该方法包括在第一绝缘层上依次层叠第一磁性层和绝缘覆盖层; 在所述绝缘覆盖层上形成期望宽度的掩模图案，并且蚀刻所述第一磁性层和所述绝缘盖层直到所述第一绝缘层露出，从而形成梯形层叠部分; 在所述第一绝缘层上沉积绝缘材料以形成第二绝缘层以埋设所述梯形分层部分的周边; 以及在所述第二绝缘层上形成第二磁性层。

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