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1. 发明授权

US09431056B2 Selective shingled magnetic recording scheme 有权
标题翻译：选择性带状磁记录方案
公开(公告)号：US09431056B2
公开(公告)日：2016-08-30
申请号：US15013868
申请日：2016-02-02
申请人： Lothar Pantel
发明人： Lothar Pantel
IPC分类号： G11B20/12 , G11B20/18 , G11B20/20 , G11B5/00
CPC分类号： G11B20/1889 , G11B20/1217 , G11B20/1252 , G11B20/1816 , G11B20/20 , G11B2005/0002 , G11B2020/1238 , G11B2020/1241 , G11B2020/1277 , G11B2020/1292
摘要： A selective band management scheme for storage devices is disclosed that may be used in connection with shingled magnetic recording (SMR). SMR uses bands consisting of tracks separated by guard regions. The replacement of a defective sector may be attained by selecting a suitable guard region and by displacing the selected guard region onto the physical location of the defective sector. The boundaries of the bands may be shifted. The portion of the disk surface that is necessary for the guard regions may simultaneously function as a spare sector area for defective sectors without additional space requirements. In at least one embodiment, guard regions are selectively placed onto tracks with an elevated number of primary defects by means of an optimization algorithm.
摘要翻译：公开了一种用于存储装置的选择性频带管理方案，其可以与带状磁记录（SMR）结合使用。 SMR使用由保护区域分隔的轨道组成的波段。可以通过选择适当的保护区域并且通过将所选择的保护区域移位到缺陷扇区的物理位置来获得缺陷扇区的替换。频带的边界可能会移动。保护区域所需的磁盘表面部分可以同时用作缺陷扇区的备用扇区，而不需要额外的空间要求。在至少一个实施例中，通过优化算法，保护区域被选择性地放置在具有升高数量的初级缺陷的轨道上。

2. 发明授权

US09007720B2 Magnetic recording device 有权
公开(公告)号：US09007720B2
公开(公告)日：2015-04-14
申请号：US12213417
申请日：2008-06-19
申请人： Hideaki Fukuzawa , Hiromi Yuasa
发明人： Hideaki Fukuzawa , Hiromi Yuasa
IPC分类号： G11B5/127 , G11B5/02 , B82Y10/00 , G11B5/31 , G11B5/39 , G11B5/66 , G11B5/74 , G11B5/82 , G11B5/00
CPC分类号： G11B5/66 , B82Y10/00 , G11B5/02 , G11B5/314 , G11B5/3983 , G11B5/743 , G11B5/746 , G11B5/82 , G11B2005/0002 , G11B2005/0024
摘要： A magnetic recording device includes: a magnetic recording medium containing a plurality of recording layers; a magnetic recording head for conducting magnetic writing of information in the magnetic recording medium; and a magnetic reproducing head for conducting magnetic reading out of the information from the magnetic recording medium; wherein the magnetic recording head includes a high frequency oscillator for magnetically assisting the magnetic writing of the information so as to change a magnetization of at least one of the plurality of recording layers of the magnetic recording medium, thereby recording a plurality of information different from one another in the magnetic recording medium commensurate with a total amount of magnetization of the plurality of recording layers.

3. 发明申请

US20140192434A1 INTER-TRACK INTERFERENCE CANCELATION FOR SHINGLED MAGNETIC RECORDING 审中-公开
标题翻译：用于振动磁记录的互锁干扰消除
公开(公告)号：US20140192434A1
公开(公告)日：2014-07-10
申请号：US14158468
申请日：2014-01-17
申请人： SK hynix memory solutions Inc.
发明人： Jason Bellorado , Marcus Marrow
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B5/012 , G11B5/09 , G11B20/10046 , G11B2005/0002 , G11B2020/1238 , G11B2020/1292 , G11B2020/1298 , G11B2220/2516
摘要： Inter-track interference cancelation is disclosed, including: receiving an input sequence of samples associated with a track on magnetic storage; using a processor to generate inter-track interference (ITI) data associated with a first side track including by performing a correlation between the input sequence of samples and a sequence of data associated with the first side track.
摘要翻译：公开了磁道间干扰消除，包括：接收与磁存储上的轨道相关联的样本的输入序列; 使用处理器来产生与第一侧轨道相关联的轨道间干扰（ITI）数据，该数据包括通过执行输入样本序列与与第一侧轨道相关联的数据序列之间的相关性。

4. 发明授权

US08711600B2 High density molecular memory storage with read and write capabilities 有权
标题翻译：具有读写功能的高密度分子存储器存储
公开(公告)号：US08711600B2
公开(公告)日：2014-04-29
申请号：US13423520
申请日：2012-03-19
申请人： Karthik Venkataraman , Jagadeesh S. Moodera
发明人： Karthik Venkataraman , Jagadeesh S. Moodera
IPC分类号： G11C11/22
CPC分类号： G11B5/02 , G11B5/64 , G11B5/65 , G11B5/746 , G11B9/04 , G11B9/149 , G11B2005/0002 , G11C11/161 , G11C11/1675 , G11C13/0014 , H01F10/005 , H01F10/3254 , H01F41/325
摘要： A memory element is provided that includes a ferromagnetic (FM) layer having one or more ferromagnetic materials. One or more first molecule layers are positioned on the FM layer where charge transfer and interface chemistry between the one or more first molecule layers and FM layer induces a magnetic moment in the one or more first molecule layers. The magnetic moment is stored in the one or more first molecule layers acting as bit information that is retained or written into the one or more first molecule layers. One or more spin-filter layers are positioned on the one or more first molecule layers. The one or more spin-filter layers are positioned on the one or more spin-filter layers to form a physical or a chemical π-dimer layer structure.
摘要翻译：提供了一种存储元件，其包括具有一个或多个铁磁材料的铁磁（FM）层。一个或多个第一分子层位于FM层上，其中一个或多个第一分子层和FM层之间的电荷转移和界面化学在一个或多个第一分子层中诱导磁矩。磁矩存储在作为保留或写入一个或多个第一分子层的位信息的一个或多个第一分子层中。一个或多个自旋过滤层位于一个或多个第一分子层上。一个或多个自旋过滤器层定位在一个或多个自旋过滤器层上以形成物理或化学和化合物层结构。

5. 发明授权

US08553517B2 Magnetic medium using spin-polarized electrons and apparatus and method of recording data on the magnetic medium 失效
标题翻译：使用自旋极化电子的磁性介质以及在磁介质上记录数据的装置和方法
公开(公告)号：US08553517B2
公开(公告)日：2013-10-08
申请号：US10682896
申请日：2003-10-14
申请人： Sung-dong Kim
发明人： Sung-dong Kim
IPC分类号： G11B9/00
CPC分类号： B82Y10/00 , G11B5/00 , G11B9/10 , G11B9/1409 , G11B11/10539 , G11B13/04 , G11B2005/0002 , G11B2005/0005
摘要： A magnetic medium using spin-polarized electrons, and an apparatus and method of recording data on the magnetic medium are provided. The magnetic medium includes a polarization layer and a magnetic recording layer. The polarization layer spin-polarizes electrons. In the magnetic recording layer, the direction of magnetization varies depending on the direction of the spin-polarization of the electrons. The data recording apparatus includes a light source and a probe. The light source radiates circularly polarized light, and the probe injects electrons spin-polarized by the circularly polarized light into a magnetic medium and changes the direction of the magnetization of the magnetic medium to record data on the magnetic medium. Because the direction of magnetization is adjusted using spin-polarized electrons, fast data recording can be achieved.
摘要翻译：提供了使用自旋极化电子的磁性介质，以及在磁介质上记录数据的装置和方法。磁介质包括偏振层和磁记录层。极化层使电子自旋极化。在磁记录层中，磁化方向根据电子自旋极化的方向而变化。数据记录装置包括光源和探针。光源辐射圆偏振光，探针将通过圆偏振光自旋偏振的电子注入到磁介质中，并且改变磁介质的磁化方向以将数据记录在磁介质上。由于使用自旋极化电子来调整磁化方向，所以可以实现快速的数据记录。

6. 发明授权

US08553372B2 Magnetic oscillator 有权
公开(公告)号：US08553372B2
公开(公告)日：2013-10-08
申请号：US13430074
申请日：2012-03-26
申请人： Tazumi Nagasawa , Kiwamu Kudo , Rie Sato , Koichi Mizushima
发明人： Tazumi Nagasawa , Kiwamu Kudo , Rie Sato , Koichi Mizushima
IPC分类号： G11B5/39
CPC分类号： H03B15/006 , G11B5/3903 , G11B2005/0002 , H01F10/3254 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L43/08
摘要： According to one embodiment, a magnetic oscillator includes a layered film and a pair of electrodes. The layered film includes a first ferromagnetic layer, an insulating layer stacked on the first ferromagnetic layer, and a second ferromagnetic layer stacked on the insulating layer. The pair of electrodes is configured to apply a current to the layered film in a direction perpendicular to a film surface of the layered film. Regions having different resistance area products are provided between the first ferromagnetic layer and the second ferromagnetic layer.

7. 发明申请

US20130215532A1 RECORDING HEAD AND DISK DRIVE WITH THE SAME 有权
标题翻译：记录头和磁盘驱动器
公开(公告)号：US20130215532A1
公开(公告)日：2013-08-22
申请号：US13591012
申请日：2012-08-21
申请人： Tomoko TAGUCHI , Kenichiro YAMADA , Katsuhiko KOUI , Tomomi FUNAYAMA , Norihito FUJITA
发明人： Tomoko TAGUCHI , Kenichiro YAMADA , Katsuhiko KOUI , Tomomi FUNAYAMA , Norihito FUJITA
IPC分类号： G11B5/17
CPC分类号： G11B5/3116 , G11B2005/0002
摘要： According to one embodiment, a main pole of a recording head includes a first magnetic pole layer and a second magnetic pole layer laminated on the trailing side of the first magnetic pole layer. The first magnetic pole layer includes a tapered portion and a first tip portion. The second magnetic pole layer includes a tapered portion and a second tip portion. A width in a track direction of the second tip portion is smaller than that of the first tip portion. The high-frequency oscillator is between the second tip portion and the trailing shield and includes a width in the track direction substantially equal to the width in the track direction of the second tip portion, and a height of the first tip portion is taller than that of the second tip portion.
摘要翻译：根据一个实施例，记录头的主极包括层叠在第一磁极层的后侧上的第一磁极层和第二磁极层。第一磁极层包括锥形部分和第一末端部分。第二磁极层包括锥形部分和第二尖端部分。第二前端部的轨道方向的宽度小于第一前端部的宽度。所述高频振荡器位于所述第二前端部与所述后屏蔽之间，并且包括所述轨道方向上的宽度大致等于所述第二前端部的轨道方向的宽度，并且所述第一前端部的高度高于所述第二前端部的高度。的第二尖端部分。

8. 发明申请

US20130063841A1 THERMAGNONIC SPIN-TORQUE OSCILLATOR(STO) AND SENSOR UTILIZING SAME TO DETECT SHIFTS IN THE FREE LAYER MAGNETIZATION OSCILLATION FREQUENCY 有权
标题翻译： THERMAGNONIC旋转扭矩振荡器（STO）和传感器用于在自由层磁化振荡频率中检测位移
公开(公告)号：US20130063841A1
公开(公告)日：2013-03-14
申请号：US13228429
申请日：2011-09-08
申请人： Patrick Mesquita Braganca , Bruce Alvin Gurney
发明人： Patrick Mesquita Braganca , Bruce Alvin Gurney
IPC分类号： H01L29/82 , G11B5/48
CPC分类号： G01R33/093 , G01R33/098 , G01R33/1284 , G11B5/3903 , G11B2005/0002
摘要： A “thermagnonic” spin-torque oscillator (STO) uses heat flow alone to cause the spin-torque (ST) effect and generate the persistent oscillation of the free layer magnetization. In addition to the conventional free and reference layers, the thermagnonic STO also includes a magnetic oxide layer having a fixed in-plane magnetization, a ferromagnetic metallic layer on one surface of the magnetic oxide layer, a nonmagnetic electrically conductive layer between the free layer and the metallic layer, and an electrically resistive heater on the other surface of the magnetic oxide layer. Due to the thermagnonic effect, heat flow from the magnetic oxide layer through the metallic layer, conductive layer and free layer ultimately results in a spin transfer torque (STT) to the free layer. Electrical sense current flowing in the opposite direction as the heat flow is used to monitor the frequency of oscillation of the free layer magnetization.
摘要翻译：热电偶自旋转矩振荡器（STO）单独使用热流引起自旋转矩（ST）效应，并产生自由层磁化的持续振荡。除了常规的自由和参考层之外，热电偶STO还包括具有固定的平面内磁化的磁性氧化物层，在磁性氧化物层的一个表面上的强磁性金属层，在自由层和自由层之间的非磁性导电层所述金属层和所述磁性氧化物层的另一个表面上的电阻加热器。由于热电偶效应，从氧化物层通过金属层，导电层和自由层的热流最终导致自由层的自旋转移扭矩（STT）。与热流相反的方向流动的电感电流用于监测自由层磁化的振荡频率。

9. 发明授权

US08325442B2 Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus 有权
标题翻译：旋转扭矩振荡器，磁记录头，磁头组件和磁记录装置
公开(公告)号：US08325442B2
公开(公告)日：2012-12-04
申请号：US12591055
申请日：2009-11-05
申请人： Katsuhiko Koui , Mariko Shimizu , Kenichiro Yamada
发明人： Katsuhiko Koui , Mariko Shimizu , Kenichiro Yamada
IPC分类号： G11B5/33
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B2005/0002 , G11B2005/0024
摘要： A spin torque oscillator includes a first magnetic layer, a second magnetic layer and a first nonmagnetic layer. The first magnetic layer includes a magnetic film of a magnetic material with a body-centered cubic (bcc) structure and an oriented {110} plane of the body-centered cubic structure, the oriented {110} plane being oriented substantially parallel to a principal plane of the magnetic film. The first nonmagnetic layer is disposed between the first magnetic layer and the second magnetic layer. In addition, a magnetic moment in the magnetic film precesses around an axis substantially parallel to the principal plane. Furthermore, a magnetic field is applied in a direction substantially perpendicular to the principal plane, and a current is passed perpendicularly to the principal plane.
摘要翻译：自旋转矩振荡器包括第一磁性层，第二磁性层和第一非磁性层。第一磁性层包括具有体心立方（bcc）结构的磁性材料和体心立方结构的取向{110}面的磁性膜，取向{110}面取向为基本平行于主体磁膜的平面。第一非磁性层设置在第一磁性层和第二磁性层之间。此外，磁性膜中的磁矩围绕基本平行于主平面的轴线进行。此外，在基本上垂直于主平面的方向上施加磁场，并且电流垂直于主平面通过。

10. 发明申请

US20120281460A1 NONCONTACT WRITING OF NANOMETER SCALE MAGNETIC BITS USING HEAT FLOW INDUCED SPIN TORQUE EFFECT 有权
标题翻译：使用热流引起的旋转扭矩影响的纳米尺度磁性位置的非连接写
公开(公告)号：US20120281460A1
公开(公告)日：2012-11-08
申请号：US13100026
申请日：2011-05-03
申请人： David W. Abraham , Jonathan Z. Sun , Guohan Hu
发明人： David W. Abraham , Jonathan Z. Sun , Guohan Hu
IPC分类号： G11C11/16
CPC分类号： G11C11/161 , B82Y40/00 , G11B5/02 , G11B5/746 , G11B5/855 , G11B2005/0002 , G11B2005/0021 , G11C11/1675 , G11C13/003 , G11C13/06 , H01F10/329 , H01F41/308
摘要： A mechanism is provided for noncontact writing. Multiple magnetic islands are provided on a nonmagnetic layer. A reference layer is provided under the nonmagnetic layer. A spin-current is caused to write a state to a magnetic island of the multiple magnetic islands by moving a heat source to heat the magnetic island.
摘要翻译：提供非接触写作的机制。在非磁性层上提供多个磁岛。参考层设置在非磁性层之下。通过移动热源来加热磁岛，使自旋电流向多个磁岛的磁岛写入状态。

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