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51. 发明授权

US09263086B2 Magnetization control for magnetic shield in magnetic recording head 有权
标题翻译：磁记录头磁屏蔽磁化控制
公开(公告)号：US09263086B2
公开(公告)日：2016-02-16
申请号：US14227933
申请日：2014-03-27
申请人： HGST Netherlands B.V.
发明人： Satoshi Tabata , Norifumi Miyamoto , Akira Morinaga , Masahiro Ito , Masahiko Hatatani
IPC分类号： G11B11/00 , G11B20/10 , G11B5/11 , G11B5/00
CPC分类号： G11B20/10212 , G11B5/11 , G11B5/315 , G11B5/465 , G11B5/54 , G11B2005/0021
摘要： A hard disk drive (HDD) is described which includes a magnetic field-generating device in the vicinity of a load/unload ramp such that the write head moves into a magnetic field generated by the device while the head is being unloaded from disk, whereby the magnetic field pins in a predominant direction the direction of magnetization of a magnetic shield associated with the write head, and away from the direction toward the disk. Recording magnetic field leakage associated with the shield is thereby suppressed and corresponding far track interference is inhibited.
摘要翻译：描述了一种硬盘驱动器（HDD），其包括在加载/卸载斜坡附近的磁场产生装置，使得当磁头从磁盘卸载时，写入头移动到由装置产生的磁场中，由此磁场引脚在主要方向上与写头相关联的磁屏蔽的磁化方向，并远离朝向盘的方向。因此，与屏蔽相关的记录磁场泄漏被抑制，并且相应的远场干扰被抑制。

52. 发明申请

US20160027459A1 SLIDER WITH HIGH FREQUENCY VOLTAGE GROUND AND LOW FREQUENCY DC VOLTAGE ISOLATION 有权
标题翻译：具有高电压接地和低频直流电压隔离的滑动器
公开(公告)号：US20160027459A1
公开(公告)日：2016-01-28
申请号：US14341701
申请日：2014-07-25
申请人： HGST Netherlands B.V.
发明人： Tuan M. Dinh , David P. Druist , David J. Seagle , Michael M.H. Yang
IPC分类号： G11B5/48 , H01L27/02 , H01L21/285 , H01L21/02 , H01L49/02 , H01L21/311
CPC分类号： H01L28/60 , G11B5/102 , G11B5/6035 , G11B5/6082 , G11B5/6094 , H01L27/0288 , H01L28/20
摘要： In one embodiment, a slider includes a substrate, a magnetic head, and a coupling capacitor. In one embodiment, a slider includes a substrate, a magnetic head, and a coupling capacitor configured to AC couple an electronics ground of the slider to the substrate and DC decouple the electronics ground of the slider from the substrate, the coupling capacitor including: a first conductive layer, a gap layer positioned above the first conductive layer, a dielectric layer positioned above the gap layer and the first conductive layer, and a second conductive layer positioned above the dielectric layer. In another embodiment, a method for forming a capacitor includes forming a substrate, forming a first conductive layer above the substrate, forming a gap layer above the first conductive layer, forming a dielectric layer above the gap layer and the first conductive layer, and forming a second conductive layer above the dielectric layer.
摘要翻译：在一个实施例中，滑块包括基板，磁头和耦合电容器。在一个实施例中，滑块包括衬底，磁头和耦合电容器，其被配置为将滑块的电子接地AC耦合到衬底，并且DC将滑块的电子接地与衬底分离，耦合电容器包括：第一导电层，位于第一导电层上方的间隙层，位于间隙层上方的电介质层和第一导电层，以及位于介电层上方的第二导电层。在另一个实施例中，形成电容器的方法包括：形成衬底，在衬底上形成第一导电层，在第一导电层之上形成间隙层，在间隙层和第一导电层之上形成电介质层，以及形成介电层上方的第二导电层。

53. 发明授权

US09245565B2 Magnetic recording medium lubricant mixture and systems thereof 有权
标题翻译：磁记录介质润滑剂混合物及其体系
公开(公告)号：US09245565B2
公开(公告)日：2016-01-26
申请号：US13918719
申请日：2013-06-14
申请人： HGST Netherlands B.V.
发明人： Yoko Saito , Hiroyuki Matsumoto , Sukefumi Ito , Yoshihiko Ooeda
IPC分类号： G11B5/66 , G11B5/725 , G11B21/02 , C10M105/54 , G11B5/84 , C10M111/04
CPC分类号： G11B5/725 , C10M105/54 , C10M111/04 , C10M2211/0425 , C10M2213/043 , C10N2230/06 , C10N2240/204 , C10N2250/10 , G11B5/8408 , G11B21/02
摘要： In one embodiment, a magnetic recording medium includes a magnetic recording layer adapted to store magnetic information, a protective film positioned above the recording layer, the protective film being adapted to reduce wear to the magnetic recording layer, and a lubricant positioned above the protective film, the lubricant being adapted to provide a stable head-to-disk interface, wherein the lubricant includes a first lubricant, the first lubricant including a material having the following chemical formula: wherein Rf represents: and wherein Y is a repeating chain including carbon and fluorine.
摘要翻译：在一个实施例中，磁记录介质包括适于存储磁信息的磁记录层，位于记录层上方的保护膜，保护膜适于减小对磁记录层的磨损，以及位于保护膜上方的润滑剂所述润滑剂适于提供稳定的头对盘接口，其中所述润滑剂包括第一润滑剂，所述第一润滑剂包括具有以下化学式的材料：其中Rf表示：并且其中Y是包括碳的重复链和氟。

54. 发明授权

US09245548B2 Magnetic head using a synthetic ferri free structure 有权
标题翻译：磁头使用合成无铁结构
公开(公告)号：US09245548B2
公开(公告)日：2016-01-26
申请号：US12011334
申请日：2008-01-25
申请人： Masato Shiimoto , Hiroyuki Katada , Kazuhiro Nakamoto , Hiroyuki Hoshiya
发明人： Masato Shiimoto , Hiroyuki Katada , Kazuhiro Nakamoto , Hiroyuki Hoshiya
IPC分类号： G11B5/39 , B82Y10/00 , B82Y25/00
CPC分类号： G11B5/3906 , B82Y10/00 , B82Y25/00 , G11B2005/3996 , Y10T428/1121
摘要： Embodiments of the present invention help to reduce mag-noise in a magnetoresistive head without deterioration in reproduced output and improve the signal/noise ratio (SNR) of the magnetoresistive head. According to one embodiment, the magnetoresistive head uses a synthetic ferri free layer and it is arranged such that the magnetic field which is applied to an end of a free layer with smaller film thickness and saturation magnetization in the track width direction by a coupling field is larger than the magnetic field which is applied to it by a bias layer.
摘要翻译：本发明的实施例有助于减少磁阻磁头中的磁噪声，而不会使再现输出变差，并提高磁阻磁头的信噪比（SNR）。根据一个实施例，磁阻头使用合成的无自由层，并且其布置成使得通过耦合场施加到具有较小膜厚度和磁道宽度方向上的饱和磁化强度的自由层的端部的磁场是大于通过偏置层施加到其的磁场。

55. 发明授权

US09218847B2 System and method for testing data storage systems utilizing micro-transitions 有权
标题翻译：使用微转换测试数据存储系统的系统和方法
公开(公告)号：US09218847B2
公开(公告)日：2015-12-22
申请号：US14132966
申请日：2013-12-18
申请人： HGST Netherlands B.V.
发明人： Weldon Mark Hanson , Michael Paul Salo , Alexander Taratorin , Roger William Wood
IPC分类号： G11B20/18 , G11B20/10
CPC分类号： G11B20/182 , G11B20/10398
摘要： A method of testing a one or more components of a data storage system introduces a first plurality of micro-transitions into a first data write pattern, which is then written to a magnetic media. A read-back signal is generated, and a frequency response of the read-back signal is analyzed to determine performance of the one or more components of the data storage system.
摘要翻译：测试数据存储系统的一个或多个组件的方法将第一多个微转换引入第一数据写入模式，然后将其写入磁性介质。生成回读信号，分析回读信号的频率响应，以确定数据存储系统的一个或多个组件的性能。

56. 发明授权

US09196312B2 Disk drive with air-flow control component 有权
标题翻译：带气流控制组件的磁盘驱动器
公开(公告)号：US09196312B2
公开(公告)日：2015-11-24
申请号：US12630807
申请日：2009-12-03
申请人： Naoshi Mizumoto , Masaki Otsuka , Satoshi Suzuki
发明人： Naoshi Mizumoto , Masaki Otsuka , Satoshi Suzuki
IPC分类号： G11B5/54 , G11B21/22 , G11B33/14
CPC分类号： G11B33/148
摘要： A disk drive. The disk drive includes a motor, a base to which the motor is affixed, an actuator supporting a head-slider, and an air-flow control component affixed inside the base. The motor is configured to spin a disk. The actuator is configured to access the disk and to rotate about a pivot shaft to move the head-slider. The air-flow control component includes a plate which faces a recording surface of the disk, and a support portion supporting the plate. The thickness of the plate gradually decreases towards an outflow side of the air-flow control component. The bodies of the plate and the support portion are made of resin; and, a surface of the plate is configured to be held at an electrical potential selected from the group consisting of ground potential and a negative potential.
摘要翻译：磁盘驱动器磁盘驱动器包括电动机，固定有电动机的基座，支撑头部滑块的致动器以及固定在基座内的气流控制部件。电机配置为旋转磁盘。致动器被配置为接近盘并围绕枢转轴旋转以移动头部滑块。气流控制部件包括面向盘的记录表面的板和支撑板的支撑部。板的厚度朝向气流控制部件的流出侧逐渐减小。板的主体和支撑部分由树脂制成; 并且，所述板的表面被配置为保持在从由地电位和负电位组成的组中选择的电位。

57. 发明申请

US20150332728A1 Hard Disk Drive Base Having Vibration Propagation Mitigation Feature 审中-公开
标题翻译：具有振动传播缓解功能的硬盘驱动器基座
公开(公告)号：US20150332728A1
公开(公告)日：2015-11-19
申请号：US14280452
申请日：2014-05-16
申请人： HGST NETHERLANDS B.V.
发明人： Teruhiro Nakamiya , Hiromitsu Masuda , Kenji Tomida , Hajime Mori
IPC分类号： G11B19/20
CPC分类号： G11B19/2018 , G11B25/043 , G11B33/08
摘要： A hard disk drive (HDD) enclosure base is described, in which a mechanical feature is implemented that mitigates the propagation of vibration through the base. For example, an HDD base as described can mitigate the propagation of vibration to the head suspension and thereby eliminate read-back signal losses resulting from such vibration, such as in response to an op-shock event.
摘要翻译：描述了一种硬盘驱动器（HDD）机箱基座，其中实现了减轻振动通过基座的传播的机械特征。例如，所描述的HDD基座可以减轻振动对磁头悬架的传播，从而消除由这种振动引起的回读信号损失，例如响应于操作冲击事件。

58. 发明申请

US20150332711A1 ASYMMETRIC MAMR HEAD WITH SELF-ALIGNED SPIN TORQUE OSCILLATOR ALONG FLARE EDGE FOR SHINGLED MAGNETIC RECORDING 有权
标题翻译：具有自对准旋转扭矩振荡器的非对称马蹄形头，用于振动磁记录
公开(公告)号：US20150332711A1
公开(公告)日：2015-11-19
申请号：US14278969
申请日：2014-05-15
申请人： HGST Netherlands B.V.
发明人： Yosuke URAKAMI , Masato SHIIMOTO , Kazue KUDO , Hiromi SHIINA
IPC分类号： G11B5/35 , G11B5/265
CPC分类号： G11B5/1278 , G11B5/23 , G11B5/3113 , G11B5/3133 , G11B5/3143 , G11B5/315 , G11B2005/0024
摘要： The present disclosure generally relates to the structure of a perpendicular magnetic write head for use in a magnetic disk drive. A shingled-microwave-assisted magnetic recording head for use in a high-areal-density hard disk drive comprises a trailing shield, a flare-shaped main pole, one or more side shields, a spin torque oscillator, and two asymmetric side gaps, where one side gap has a smaller width than the other side gap. The spin torque oscillator shares a first continuous edge with the main pole on a side adjacent the side gap having the smaller width and shares a second continuous edge adjacent a media facing surface. The angle of the spin torque oscillator and the main pole formed by the media facing surface and the narrow side gap is greater than about 90°.
摘要翻译：本公开总体上涉及用于磁盘驱动器的垂直磁性写入头的结构。用于高密度硬盘驱动器的带状微波辅助磁记录头包括后屏蔽，喇叭形主极，一个或多个侧屏蔽，自旋扭矩振荡器和两个不对称侧间隙，其中一侧间隙具有比另一侧间隙小的宽度。旋转扭矩振荡器共享第一连续边缘，主极在邻近具有较小宽度的侧间隙的一侧上，并且与邻近介质的表面共享第二连续边缘。旋转扭矩振荡器和由介质相对表面和窄侧间隙形成的主极的角度大于约90°。

59. 发明申请

US20150324134A1 SYSTEM AND METHOD FOR CACHING SOLID STATE DEVICE READ REQUEST RESULTS 有权
标题翻译：实时状态设备读取请求结果的系统和方法
公开(公告)号：US20150324134A1
公开(公告)日：2015-11-12
申请号：US14275468
申请日：2014-05-12
申请人： HGST Netherlands B.V.
发明人： Lee Anton Sendelbach , Jeffrey S. Werning
IPC分类号： G06F3/06 , G06F13/42 , G06F13/40 , G06F12/12 , G06F12/08
CPC分类号： G06F12/0868 , G06F3/0613 , G06F3/064 , G06F3/0656 , G06F3/0688 , G06F12/122 , G06F12/123 , G06F13/4022 , G06F13/4221 , G06F2212/604
摘要： Techniques for caching results of a read request to a solid state device are disclosed. In some embodiments, the techniques may be realized as a method for caching solid state device read request results comprising receiving, at a solid state device, a data request from a host device communicatively coupled to the solid state device, and retrieving, using a controller of the solid state device, a compressed data chunk from the solid state device in response to the data request. The techniques may further include decompressing the compressed data chunk, returning, to the host device, a block of the data chunk responsive to the data request, and caching one or more additional blocks of the data chunk in a data buffer for subsequent read requests.
摘要翻译：公开了用于将读请求的结果缓存到固态设备的技术。在一些实施例中，技术可以被实现为用于缓存固态设备读取请求结果的方法，包括在固态设备处从通信地耦合到固态设备的主机设备接收数据请求，以及使用控制器固态设备的响应于数据请求的来自固态设备的压缩数据块。这些技术可以进一步包括解压缩压缩的数据块，并响应于数据请求向主机设备返回数据块的块，以及在数据缓冲器中缓存数据块的一个或多个附加块以用于随后的读取请求。

60. 发明授权

US09177575B1 Tunneling magnetoresistive (TMR) read head with reduced gap thickness 有权
标题翻译：隧道磁阻（TMR）读头，间隙厚度减小
公开(公告)号：US09177575B1
公开(公告)日：2015-11-03
申请号：US14561265
申请日：2014-12-05
申请人： HGST Netherlands B.V.
发明人： Zheng Gao , Sangmun Oh , Susumu Okamura
IPC分类号： G11B5/39
CPC分类号： G11B5/3912 , G01R33/098 , G11B5/3909 , H01L43/08 , H01L43/10
摘要： A tunneling magnetoresistive (TMR) read head has a read gap with a reduced thickness. A multilayer seed layer includes a first ferromagnetic seed layer on the lower shield, a ferromagnetic NiFe alloy on the first seed layer, and a third seed layer of Ru or Pt on the NiFe seed layer. The first and NiFe seed layers are magnetically part of the lower shield, thereby effectively reducing the read gap thickness. A free layer/capping layer structure includes a multilayer ferromagnetic free layer and a Hf capping layer on the free layer. The free layer includes a B-containing upper layer in contact with the Hf capping layer prior to annealing. When the sensor is annealed Hf diffuses into the B-containing upper layer, forming an interface layer. The Hf-containing interface layer possesses negative magnetostriction, so the free layer is not required to contain NiFe.
摘要翻译：隧道磁阻（TMR）读头具有减小厚度的读取间隙。多层种子层包括下屏蔽上的第一铁磁种子层，第一籽晶层上的铁磁性NiFe合金，以及NiFe种子层上的Ru或Pt的第三晶种层。第一和NiFe种子层是下屏蔽的磁性部分，从而有效地减小读取间隙厚度。自由层/覆盖层结构包括多层铁磁自由层和自由层上的Hf覆盖层。自由层包括在退火之前与Hf覆盖层接触的含B的上层。当传感器退火时，Hf扩散到含B的上层中，形成界面层。含Hf的界面层具有负的磁致伸缩，因此自由层不需要含有NiFe。

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