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1. 发明授权

US10032468B1 Heat-assisted magnetic recording head configured to conduct heat away from slider components to a substrate 有权
公开(公告)号：US10032468B1
公开(公告)日：2018-07-24
申请号：US15344851
申请日：2016-11-07
申请人： Seagate Technology LLC
发明人： James Gary Wessel , Zoran Jandric , Vasudevan Ramaswamy
IPC分类号： G11B11/00 , G11B5/31 , G11B5/48 , G11B5/00 , G11B11/105 , G11B5/60
CPC分类号： G11B5/3133 , G11B5/3136 , G11B5/6088 , G11B11/10534 , G11B11/10536 , G11B2005/0021
摘要： An apparatus comprises a slider configured for heat assisted magnetic recording and comprising a substrate. At least one component of the slider generates heat when energized. At least one thermal via extends through a portion of the slider from a location proximate the component to the substrate. The thermal via is configured to conduct heat away from the component and to the substrate.

2. 发明申请

US20170162222A1 LASER MODE HOPPING DETECTION FOR HEAT-ASSISTED MAGNETIC RECORDING DEVICE 有权
公开(公告)号：US20170162222A1
公开(公告)日：2017-06-08
申请号：US14957220
申请日：2015-12-02
申请人： Seagate Technology LLC
发明人： Robert Matousek , Todd Lammers , Jon David Trantham
IPC分类号： G11B11/105
CPC分类号： G11B11/10534 , G11B5/314 , G11B5/40 , G11B5/455 , G11B7/126 , G11B7/1263 , G11B7/1267 , G11B7/13 , G11B11/10595 , G11B19/046 , G11B2005/0021
摘要： Methods and apparatuses for detecting mode hopping in a laser diode or other optical energy source in heat-assisted magnetic recording. An output power of the laser diode or other optical energy source is measured and the output power is differentiated over time to determine a rate of change. If it is determined that the rate of change exceeds a threshold value, a fault signal is asserted indicating a potential mode hopping event.

3. 发明授权

US09542960B2 Thermally-assisted magnetic recording head including a main pole, a plasmon generator and two side shields 有权
标题翻译：热辅助磁记录头包括主极，等离子体激元发生器和两个侧面屏蔽
公开(公告)号：US09542960B2
公开(公告)日：2017-01-10
申请号：US14720319
申请日：2015-05-22
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hideo Mamiya , Kenichi Takano
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hideo Mamiya , Kenichi Takano
IPC分类号： G11B11/00 , G11B5/31 , G11B5/48 , G11B5/00 , G11B11/105 , G11B5/60
CPC分类号： G11B5/315 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B11/10534 , G11B11/10536 , G11B11/10543 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole, a plasmon generator, and first and second side shields. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion, and a second end face portion greater in width than the first end face portion. The first and second side shields have first and second side shield end faces located on opposite sides of at least part of the near-field light generating surface and at least part of the first end face portion in the track width direction.
摘要翻译：热辅助磁记录头包括主极，等离子体激元发生器以及第一和第二侧屏蔽。主杆具有位于介质面对表面中的前端面。等离子体发生器具有位于介质面对表面中的近场光产生表面。主极的前端面包括第一端面部分和宽度大于第一端面部分的第二端面部分。第一和第二侧面屏蔽具有位于近场光产生表面的至少一部分的相对侧上的第一和第二侧屏蔽端面以及轨道宽度方向上的第一端面部分的至少一部分。

4. 发明授权

US08842391B2 Recording head including a near field transducer 有权
标题翻译：记录头包括近场传感器
公开(公告)号：US08842391B2
公开(公告)日：2014-09-23
申请号：US14062675
申请日：2013-10-24
申请人： Seagate Technology LLC
发明人： Jie Zou , Kaizhong Gao , William Albert Challener , Mark Henry Ostrowski , Venkateswara Rao Inturi , Tong Zhao , Michael Christopher Kautzky
IPC分类号： G11B5/02
CPC分类号： G11B11/10534 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/314 , G11B2005/0021
摘要： An apparatus including a near field transducer positioned adjacent to an air bearing surface, the near field transducer including an electrically conductive nitride; a first magnetic pole; and a heat sink, a diffusion barrier layer, or both positioned between the first magnetic pole and the near field transducer, wherein the heat sink, the diffusion barrier or both include rhodium (Rh) or an alloy thereof; ruthenium (Ru) or an alloy thereof titanium (Ti) or an alloy thereof tantalum (Ta) or an alloy thereof tungsten (W) or an alloy thereof borides; nitrides; transition metal oxides; or palladium (Pd) or an alloy thereof.
摘要翻译：一种包括邻近空气轴承表面定位的近场换能器的装置，所述近场换能器包括导电氮化物; 第一个磁极; 以及位于第一磁极和近场换能器之间的散热器，扩散阻挡层或两者，其中散热器，扩散阻挡层或二者均包括铑（Rh）或其合金; 钌（Ru）或其合金钛（Ti）或其合金钽（Ta）或其合金钨（W）或其合金硼化物; 氮化物过渡金属氧化物; 或钯（Pd）或其合金。

5. 发明授权

US07818760B2 Data writing with plasmon resonator 有权
标题翻译：用等离子体共振器进行数据写入
公开(公告)号：US07818760B2
公开(公告)日：2010-10-19
申请号：US12354947
申请日：2009-01-16
申请人： Michael Allen Seigler , Thomas William Clinton , Mark William Covington , Christophe Daniel Mihalcea
发明人： Michael Allen Seigler , Thomas William Clinton , Mark William Covington , Christophe Daniel Mihalcea
IPC分类号： G11B11/00
CPC分类号： B82Y10/00 , G11B5/127 , G11B7/1387 , G11B11/10534 , G11B11/10554 , G11B2005/0005 , G11B2005/0021
摘要： A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write transducer also includes a plasmon resonator that is adjacent the writer. The plasmon resonator is shaped to receive lower power density radiation and to provide plasmon radiation at a higher power density to an optical spot intersecting with the selected cell. The plasmon radiation heats the selected cell above a write temperature.
摘要翻译：数据写入系统包括用于存储数据的单元阵列和在单元阵列中的选定单元上移动的写换能器。写入传感器包括写入器，其产生与所选择的单元相交的写入磁场。写入传感器还包括与写入器相邻的等离子体激元谐振器。等离子体激元谐振器被成形为接收较低的功率密度辐射并且以更高的功率密度提供与所选择的单元相交的光点的等离子体激元辐射。等离子体激元辐射将选定的电池加热到写入温度以上。

6. 发明申请

US20090323223A1 HEAD GIMBAL MECHANISM AND INFORMATION RECORDING/REPRODUCING APPARATUS 有权
标题翻译：头部机器和信息记录/再现装置
公开(公告)号：US20090323223A1
公开(公告)日：2009-12-31
申请号：US12309654
申请日：2007-07-20
申请人： Masakazu Hirata , Manabu Oumi , Majung Park
发明人： Masakazu Hirata , Manabu Oumi , Majung Park
IPC分类号： G11B5/48
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/4853 , G11B5/4866 , G11B7/1384 , G11B7/1387 , G11B11/10534 , G11B11/10569 , G11B11/1058 , G11B2005/001 , G11B2005/0021
摘要： There is provided a head gimbal mechanism 2 including a slider 10 placed between a recording medium D and a beam 11 and having a device generating near-field light, gimbal means 12 for fixing the slider to the tip of the beam 11 at a state that it can rotate about two axes which are parallel to the surface of the recording medium and are orthogonal to each other, and a flexible optical waveguide 13 composed of a basic waveguide section 21 placed along the beam and a bent waveguide section 21 that is bent in the Z-direction substantially orthogonal to the surface of the recording medium from the tip of the basic waveguide and connecting to the slider in non-contact with the beam and the gimbal means, the optical waveguide 13 guiding the luminous flux to the slider, wherein the basic waveguide section is placed at a state that at least a predetermined length on the bent waveguide section side relative to the beam is not fixed to the beam.
摘要翻译：提供了一种头万向架机构2，其包括放置在记录介质D和光束11之间并具有产生近场光的装置的滑块10，用于将滑块固定到梁11的尖端的万向节装置12处于它可以围绕平行于记录介质表面的两个轴线旋转并且彼此正交;以及柔性光波导13，其由沿着光束放置的基本波导部分21和弯曲的波导部分21组成所述Z方向与所述基本波导的尖端基本上垂直于所述记录介质的表面，并且与所述光束和所述万向节装置不接触地连接到所述滑块，所述光波导13将所述光通量引导到所述滑块，其中基本波导部分被放置在相对于光束的弯曲波导部分侧上的至少预定长度不固定到光束的状态。

7. 发明授权

US07583171B2 Magnetic field generator, photomagnetic information storing system, and photomagnetic information storing apparatus 失效
标题翻译：磁场发生器，光磁信息存储系统和光磁信息存储装置
公开(公告)号：US07583171B2
公开(公告)日：2009-09-01
申请号：US11082173
申请日：2005-03-16
申请人： Tsuyoshi Matsumoto , Tohru Fujimaki , Hiroyasu Yoshikawa
发明人： Tsuyoshi Matsumoto , Tohru Fujimaki , Hiroyasu Yoshikawa
IPC分类号： G11B11/00 , H01F5/00 , H01F27/28
CPC分类号： G11B11/10534 , G11B11/10554 , G11B17/30 , G11B33/1406 , G11B2005/0021
摘要： The present invention efficiently radiates heat generated by a coil while suppressing a decrease in the efficiency of generation of magnetic fields caused by an eddy current. The present invention includes a coil extending spirally in a plane and covered with a dielectric material, a magnetic substance provided parallel with the plane so as to overlap the coil, and a radiator extending in the plane so as to surround the coil and having projecting portions which project toward an outermost periphery of the coil and groove portions recessed in a direction opposite to that in which the projecting portions project, the projecting portions and the groove portions being alternately arranged, the radiator having a higher thermal conductivity than the magnetic substance.
摘要翻译：本发明有效地辐射由线圈产生的热量，同时抑制由涡流引起的磁场的产生效率的降低。本发明包括在平面内螺旋地覆盖并被电介质材料覆盖的线圈，与平面平行设置以与线圈重叠的磁性物质，以及在该平面内延伸以围绕线圈并具有突出部分突出部分和凹槽部分交替地布置，该散热器具有比磁性物质更高的导热性。

8. 发明申请

US20090158305A1 DATA WRITING WITH PLASMON RESONATOR 有权
标题翻译：数据写入与PLASMON共振器
公开(公告)号：US20090158305A1
公开(公告)日：2009-06-18
申请号：US12354947
申请日：2009-01-16
申请人： Michael Allen Seigler , Thomas William Clinton , Mark William Covington , Christophe Daniel Mihalcea
发明人： Michael Allen Seigler , Thomas William Clinton , Mark William Covington , Christophe Daniel Mihalcea
IPC分类号： G11B11/00
CPC分类号： B82Y10/00 , G11B5/127 , G11B7/1387 , G11B11/10534 , G11B11/10554 , G11B2005/0005 , G11B2005/0021
摘要： A data writing system includes an array of cells for storing data and a write transducer that moves over a selected cell in the array of cells. The write transducer includes a writer producing a write magnetic field that intersects the selected cell. The write transducer also includes a plasmon resonator that is adjacent the writer. The plasmon resonator is shaped to receive lower power density radiation and to provide plasmon radiation at a higher power density to an optical spot intersecting with the selected cell. The plasmon radiation heats the selected cell above a write temperature.
摘要翻译：数据写入系统包括用于存储数据的单元阵列和在单元阵列中的选定单元上移动的写换能器。写入传感器包括写入器，其产生与所选择的单元相交的写入磁场。写入传感器还包括与写入器相邻的等离子体激元谐振器。等离子体激元谐振器被成形为接收较低的功率密度辐射并且以更高的功率密度提供与所选择的单元相交的光点的等离子体激元辐射。等离子体激元辐射将选定的电池加热到写入温度以上。

9. 发明申请

US20080239885A1 Magnetic Head for a Magneto-Optical Device and Magneto-Optical Device 审中-公开
标题翻译：用于磁光器件和磁光器件的磁头
公开(公告)号：US20080239885A1
公开(公告)日：2008-10-02
申请号：US10567214
申请日：2004-07-30
申请人： Hans Willem Van Kesteren , Rudolf Johan Maria Vullers
发明人： Hans Willem Van Kesteren , Rudolf Johan Maria Vullers
IPC分类号： G11B11/105 , G11B5/31
CPC分类号： G11B11/10534 , G11B11/10554
摘要： A magnetic head for a magneto-optical device comprises a plurality of substantially parallel planar layers, including at least one layer comprising a coil formed by a plurality of turns an electrically conductive winding, the turns lying substantially in a plane defined by the layer and the winding being substantially centered on a central axis perpendicular to the plane, and further including a yoke layer comprised of an anisotropic flux guiding material. The yoke layer comprises a plurality of segments (16) of flux guiding material dividing the yoke layer into sectors that together surround the central axis. In each sector, the flux guiding material has an easy axis in a plane of the yoke layer with a direction different from the direction of the easy axis in an adjacent sector.
摘要翻译：用于磁光器件的磁头包括多个基本上平行的平面层，包括至少一个层，该层包括由多个匝形成的线圈，导电绕组，所述匝基本上位于由层限定的平面中，绕组基本上以垂直于该平面的中心轴为中心，并且还包括由各向异性通量引导材料组成的轭层。磁轭层包括多个磁通引导材料段（16），将磁轭层分成围绕中心轴线的扇区。在每个扇区中，磁通引导材料在轭层的平面中具有方向不同于相邻扇区中容易轴方向的方向轴。

10. 发明授权

US07289422B2 Optical devices having transmission enhanced by surface plasmon mode resonance, and their use in data recording 有权
标题翻译：具有通过表面等离子体共振模式增强的透射的光学器件及其在数据记录中的应用
公开(公告)号：US07289422B2
公开(公告)日：2007-10-30
申请号：US11182558
申请日：2005-07-15
申请人： Charles T. Rettner , Barry C. Stipe
发明人： Charles T. Rettner , Barry C. Stipe
IPC分类号： G11B7/00 , G11B11/00
CPC分类号： B82Y10/00 , G11B5/012 , G11B5/127 , G11B5/3103 , G11B5/3143 , G11B7/00 , G11B7/1387 , G11B11/10534 , G11B2005/0021
摘要： A device includes an optical gain medium through which optical radiation is amplified. The device includes first and second reflectors disposed around the gain medium. One of the reflectors includes an emission region though which optical output is emitted and a metallic structure that has an array of features that couple the radiation to at least one surface plasmon mode of the structure, thereby enhancing the device's output. The device may be a laser, e.g., a diode laser. The emission region may have a width of, for example, between 10 and 100 nanometers, and this emission region may be in the shape of a rectangular slit. The optical radiation in the gain medium may be advantageously polarized perpendicularly to an axis along which a longer dimension of the emission region is oriented. The device is useful for data recording, e.g., thermally assisted data recording.
摘要翻译：一种器件包括光学增益介质，通过该光学增益介质放大光学辐射。该装置包括设置在增益介质周围的第一和第二反射器。反射器中的一个包括发射光学输出的发射区域和具有将辐射耦合到结构的至少一个表面等离子体激元模式的特征阵列的金属结构，从而增强器件的输出。该器件可以是激光器，例如二极管激光器。发射区可以具有例如在10和100纳米之间的宽度，并且该发射区可以是矩形狭缝的形状。增益介质中的光辐射可以有利地垂直于发射区域的较长尺寸定向的轴极化。该装置可用于数据记录，例如热辅助数据记录。

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