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1. 发明申请

US20070297091A1 Patterned magnetic recording medium and method of manufacturing the same 审中-公开
标题翻译：图案化磁记录介质及其制造方法
公开(公告)号：US20070297091A1
公开(公告)日：2007-12-27
申请号：US11700077
申请日：2007-01-31
申请人： Sang-jun Choi , Jung-hyun Lee , Hoon-sang Oh , Bum-seok Seo
发明人： Sang-jun Choi , Jung-hyun Lee , Hoon-sang Oh , Bum-seok Seo
IPC分类号： G11B23/00
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/642 , G11B5/74 , G11B5/743 , G11B5/855
摘要： A patterned magnetic recording medium and a method of manufacturing the same are provided. The patterned magnetic recording medium includes a plate, a plurality of nanowires formed vertically on the plate, and a magnetic layer patterned on the nanowires. The magnetic layer protrudes in areas corresponding to the nanowires.
摘要翻译：提供了图案化的磁记录介质及其制造方法。图案化的磁记录介质包括板，垂直于板上形成的多个纳米线以及在纳米线上图案化的磁性层。磁性层在对应于纳米线的区域中突出。

2. 发明授权

US07601443B2 Perpendicular magnetic recording media with laminated soft magnetic underlayer 失效
标题翻译：垂直磁记录介质，层叠软磁底层
公开(公告)号：US07601443B2
公开(公告)日：2009-10-13
申请号：US11259085
申请日：2005-10-27
申请人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
发明人： Chee-kheng Lim , Yong-su Kim , Byung-kyu Lee , Hoon-sang Oh , Tae-hyo Lee
IPC分类号： G11B5/66 , G11B5/667 , G11B5/673
CPC分类号： G11B5/66 , G11B5/653 , G11B5/656 , G11B5/667
摘要： A recording medium including a perpendicular magnetic recording layer and a laminated SUL formed on a substrate is provided. The SUL includes an antiferromagnetic layer interposed between laminated structures including a magnetic layer, a non-magnetic layer and a magnetic layer. The layers may each have a thickness of 20 nm or less and the layers below the antiferromagnetic layer may be thinner than the layers on the antiferromagnetic layer. The laminated structures formed on and below the antiferromagnetic layer have unidirectional magnetic anisotropies set in the opposite radial direction to each other by an exchange bias. As a result, media magnetic domain noise can be diminished.
摘要翻译：提供了包括在基板上形成的垂直磁记录层和层叠SUL的记录介质。 SUL包括介于包括磁性层，非磁性层和磁性层的层压结构之间的反铁磁性层。这些层可以各自具有20nm或更小的厚度，并且反铁磁层下面的层可以比反铁磁性层上的层更薄。形成在反铁磁性层上和下方的叠层结构具有通过交换偏压彼此相反的径向方向设置的单向磁各向异性。结果，媒体磁畴噪声可以减弱。

3. 发明授权

US07537845B2 Perpendicular magnetic recording media 有权
标题翻译：垂直磁记录介质
公开(公告)号：US07537845B2
公开(公告)日：2009-05-26
申请号：US11364172
申请日：2006-03-01
申请人： Byung-kyu Lee , Hoon-sang Oh , Kyung-jin Lee
发明人： Byung-kyu Lee , Hoon-sang Oh , Kyung-jin Lee
IPC分类号： G11B5/64
CPC分类号： G11B5/66 , G11B5/656 , G11B5/667 , G11B5/7325 , G11B5/74 , G11B2005/0005 , G11B2005/001 , G11B2005/0029
摘要： A perpendicular magnetic recording medium having a good thermal stability and a high recording density is provided. The perpendicular magnetic recording medium includes at least a first and a second perpendicular magnetic recording layer and a substrate supporting the first and the second perpendicular magnetic recording layers. The first and the second perpendicular magnetic recording layers have different physical/magnetic properties and are formed of materials that compensate the different physical/magnetic properties. The first and the second perpendicular magnetic recording layers are selected from a layer for improving perpendicular magnetic anisotropic energy (Ku), a layer for reducing the size of crystal grains, a layer for reducing the size of magnetic domains, a layer for increasing an SNR, a layer for improving signal output, a layer for reducing noise, a layer for improving the uniformity of crystal grain sizes, and a layer for improving the uniformity of magnetic domain sizes.
摘要翻译：提供具有良好热稳定性和高记录密度的垂直磁记录介质。垂直磁记录介质至少包括第一和第二垂直磁记录层以及支撑第一和第二垂直磁记录层的基板。第一和第二垂直磁记录层具有不同的物理/磁性，并且由补偿不同物理/磁性的材料形成。第一和第二垂直磁记录层选自用于改善垂直磁各向异性能（Ku）的层，用于减小晶粒尺寸的层，用于减小磁畴尺寸的层，用于增加SNR的层，用于改善信号输出的层，用于降低噪声的层，用于改善晶粒尺寸的均匀性的层，以及用于提高磁畴尺寸的均匀性的层。

4. 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。

5. 发明申请

US20080085429A1 Perpendicular Magentic Recording Medium and Method of Manufacturing the Same 审中-公开
标题翻译：垂直磁记录介质及其制造方法
公开(公告)号：US20080085429A1
公开(公告)日：2008-04-10
申请号：US11869811
申请日：2007-10-10
申请人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
发明人： Hoon-sang Oh , Tae-hyo Lee , Byung-kyu Lee
IPC分类号： G11B5/00
CPC分类号： G11B5/8404 , G11B5/653 , G11B5/656 , G11B5/667 , G11B5/7325 , G11B5/7379
摘要： Provided are a perpendicular magnetic recording medium having an underlayer between a substrate and a recording layer and a method of manufacturing the perpendicular magnetic recording medium. The method of manufacturing a perpendicular magnetic recording medium includes forming the underlayer of a plural-layer structure by at least 2 step processes under different deposition conditions. When using the underlayer formed by a 2-step manufacturing method, superior crystalline and high perpendicular magnetic anisotropy can be secured due to the lower underlayer, and the perpendicular magnetic recording layer having a high perpendicular coercivity and a small magnetic domain can be formed due to the underlayer beneath the recording layer.
摘要翻译：提供了一种在基板和记录层之间具有底层的垂直磁记录介质以及垂直磁记录介质的制造方法。制造垂直磁记录介质的方法包括在不同沉积条件下通过至少两步工艺形成多层结构的底层。当使用通过2步制造方法形成的底层时，由于较低的底层可以确保优异的晶体和高垂直磁各向异性，并且由于可以形成具有高垂直矫顽力和小磁畴的垂直磁记录层记录层下面的底层。

6. 发明申请

US20070171575A1 Perpendicular magnetic recording medium with controlled damping property of soft magnetic underlayer 审中-公开
标题翻译：具有软磁性底层受阻阻尼特性的垂直磁记录介质
公开(公告)号：US20070171575A1
公开(公告)日：2007-07-26
申请号：US11657595
申请日：2007-01-25
申请人： Chee-kheng Lim , Eun-sik Kim , Hoon-sang Oh
发明人： Chee-kheng Lim , Eun-sik Kim , Hoon-sang Oh
IPC分类号： G11B23/03
CPC分类号： G11B5/7325
摘要： A perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium includes a soft magnetic underlayer, a recording layer formed on the soft magnetic underlayer, and a damping control layer which controls a damping constant of the soft magnetic underlayer.
摘要翻译：提供垂直磁记录介质。垂直磁记录介质包括软磁性底层，形成在软磁性底层上的记录层，以及控制软磁性底层阻尼常数的阻尼控制层。

7. 发明授权

US07101634B2 Perpendicular magnetic recording media 失效
标题翻译：垂直磁记录介质
公开(公告)号：US07101634B2
公开(公告)日：2006-09-05
申请号：US10456572
申请日：2003-06-09
申请人： Byung-kyu Lee , Hoon-sang Oh
发明人： Byung-kyu Lee , Hoon-sang Oh
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/7325
摘要： 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.
摘要翻译：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。

8. 发明申请

US20050164035A1 Magnetic recording media 审中-公开
标题翻译：磁记录媒体
公开(公告)号：US20050164035A1
公开(公告)日：2005-07-28
申请号：US11014239
申请日：2004-12-17
申请人： Byung-kyu Lee , Hoon-sang Oh
发明人： Byung-kyu Lee , Hoon-sang Oh
IPC分类号： G11B5/65 , G11B5/64 , G11B5/66 , G11B5/667 , G11B5/738 , G11B5/855
CPC分类号： G11B5/855 , G11B5/66
摘要： 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.
摘要翻译：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。

9. 发明申请

US20050129985A1 Perpendicular magnetic recording media 审中-公开
标题翻译：垂直磁记录介质
公开(公告)号：US20050129985A1
公开(公告)日：2005-06-16
申请号：US11008179
申请日：2004-12-10
申请人： Hoon-sang Oh , Byung-kyu Lee , Kyung-jin Lee , Soo-youl Hong
发明人： Hoon-sang Oh , Byung-kyu Lee , Kyung-jin Lee , Soo-youl Hong
IPC分类号： G11B5/667 , G11B5/64 , G11B5/65 , G11B5/73
CPC分类号： G11B5/667 , G11B5/653 , G11B5/656 , Y10T428/265
摘要： 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.
摘要翻译：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。

10. 发明申请

US20130021894A1 TRANSDUCING DATA USING HIGH FREQUENCY FERROELECTRIC READ DEMODULATION 审中-公开
标题翻译：使用高频电磁读取解调传输数据
公开(公告)号：US20130021894A1
公开(公告)日：2013-01-24
申请号：US13613580
申请日：2012-09-13
申请人： Dong-ki Min , Hoon-sang Oh
发明人： Dong-ki Min , Hoon-sang Oh
IPC分类号： G11B9/02
CPC分类号： G11B9/02 , B82Y10/00 , G11B9/1409
摘要： Apparatus and method for transducing data from a ferroelectric data storage medium using high frequency read modulation. In accordance with some embodiments, a ferroelectric data transducer has a write electrode, a doped semiconductor layer with a source, a drain and a channel therebetween, and an insulating layer disposed between the channel and the write electrode. A write circuit applies a time varying write signal at a first frequency to the write electrode to write a corresponding sequence of data bits to an adjacent ferroelectric data storage medium. A read circuit reads the sequence of data bits from the data storage medium by applying a time varying read signal at a higher, second frequency to the write electrode and detecting changes in electrical resistance of the channel.
摘要翻译：用于使用高频读取调制从铁电数据存储介质传送数据的装置和方法。根据一些实施例，铁电数据传感器具有写入电极，具有源极的掺杂半导体层，漏极和沟道之间的沟道以及设置在沟道和写入电极之间的绝缘层。写入电路将第一频率的时变写入信号施加到写入电极，以将对应的数据位序列写入相邻的铁电数据存储介质。读取电路通过将较高的第二频率的时变读取信号施加到写入电极并检测通道的电阻的变化来从数据存储介质读取数据位的序列。

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