专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100118431A1 THERMALLY ASSISTED MAGNETIC HEAD HAVING AN ASYMMETRIC PLASMON ANTENNA AND MANUFACTURING METHOD THEREOF 有权
标题翻译：具有非对称等离子体天线的热辅助磁头及其制造方法
公开(公告)号：US20100118431A1
公开(公告)日：2010-05-13
申请号：US12267126
申请日：2008-11-07
申请人： Satoshi TOMIKAWA , Seiichi TAKAYAMA , Koji SHIMAZAWA
发明人： Satoshi TOMIKAWA , Seiichi TAKAYAMA , Koji SHIMAZAWA
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： The thermally assisted magnetic head according to the present invention comprises a medium-facing surface, a main magnetic pole provided on the medium-facing surface, and a plasmon antenna provided on the medium-facing surface, in the vicinity of the main magnetic pole. The shape of the plasmon antenna, as viewed from a direction perpendicular to the medium-facing surface, is a triangle having first, second and third corners, the plasmon antenna being shaped as a flat plate the thickness direction of which is perpendicular to the medium-facing surface. The distance from the first corner to the main magnetic pole is shorter than the distance from the second corner to the main magnetic pole and the distance from the third corner to the main magnetic pole. The second corner and the third corner are rounded.
摘要翻译：根据本发明的热辅助磁头包括介于中间的表面，设置在介质中的表面上的主磁极和设置在主磁极附近的面向中的表面上的等离子体激元。等离子体激元天线的形状，从垂直于介质相对表面的方向观察，是具有第一，第二和第三角的三角形，等离子体激元天线成形为平板，其厚度方向垂直于介质表面。从第一角到主磁极的距离比从第二角到主磁极的距离以及从第三角到主磁极的距离短。第二个角落和第三个角落是圆形的。

2. 发明申请

US20100073802A1 Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereof 有权
标题翻译：具有不对称等离子体激元天线的热辅助磁头及其制造方法
公开(公告)号：US20100073802A1
公开(公告)日：2010-03-25
申请号：US12237810
申请日：2008-09-25
申请人： Eiji KOMURA , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Kosuke TANAKA , Koji SHIMAZAWA
发明人： Eiji KOMURA , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Kosuke TANAKA , Koji SHIMAZAWA
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A thermally assisted magnetic head according to the present invention includes: a medium-facing surface, a main magnetic pole provided on the medium-facing surface, and a plasmon antenna provided on the medium-facing surface in the vicinity of the main magnetic pole, wherein the plasmon antenna is shaped as a triangular flat plate having first, second and third corners, such that the distance from the first corner to the main magnetic pole is shorter than the distance from the second corner to the main magnetic pole and the distance from the third corner to the main magnetic pole, and the interior angle α of the first corner, the interior angle β of the second corner and the interior angle γ of the third corner satisfy relationships α
摘要翻译：根据本发明的热辅助磁头包括：中介面，设在中介面上的主磁极和设置在主磁极附近的中介面上的等离子体激元，其中所述等离子体激元天线成形为具有第一，第二和第三角的三角形平板，使得从第一角到主磁极的距离比从第二角到主磁极的距离短，主磁极的第三角，第一角的内角α，内角＆bgr; 并且第三角的内角γ满足关系α<＆bgr;α<γ和＆bgr;≠γ。

3. 发明申请

US20100061200A1 NEAR-FIELD LIGHT GENERATING ELEMENT AND HEAT-ASSISTED MAGNETIC RECORDING HEAD UTILIZING SURFACE PLASMON MODE 有权
标题翻译：近场光产生元件和热辅助磁记录头使用表面等离子体模式
公开(公告)号：US20100061200A1
公开(公告)日：2010-03-11
申请号：US12205484
申请日：2008-09-05
申请人： Koji SHIMAZAWA , Eiji KOMURA , Yasuhiro ITO , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Daisuke MIYAUCHI , Kosuke TANAKA
发明人： Koji SHIMAZAWA , Eiji KOMURA , Yasuhiro ITO , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Daisuke MIYAUCHI , Kosuke TANAKA
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B11/10536 , G11B11/1058 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generating element capable of avoiding excessive temperature rise, which comprises a waveguide and a near-field light generating layer. The layer comprises: a propagation surface on which surface plasmon excited by the light propagates; and a near-field light generating end at which near-field light is generated. The end is one end of the propagation surface. And a portion of the side surface of the waveguide is opposed to a portion of the propagation surface of the near-field light generating layer with a predetermined spacing so that the light propagating through the waveguide is coupled with the near-field light generating layer in a surface plasmon mode. The near-field light generating layer is preferably tapered toward the near-field light generating end.
摘要翻译：本发明提供能够避免温度过高的近场光发生元件，其包括波导管和近场光产生层。该层包括：由光激发的表面等离子体激发的传播表面; 以及产生近场光的近场光产生端。最后是传播表面的一端。并且波导的侧面的一部分与近场光产生层的传播表面的一部分以预定的间隔相对，使得通过波导传播的光与近场光产生层耦合表面等离子体激元模式。近场光产生层优选地朝向近场光产生端逐渐变细。

4. 发明申请

US20130016591A1 THERMALLY-ASSISTED MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING DEVICE USING THE SAME 有权
标题翻译：使用其的热辅助磁记录介质和磁记录/再现装置
公开(公告)号：US20130016591A1
公开(公告)日：2013-01-17
申请号：US13182623
申请日：2011-07-14
申请人： Satoshi TOMIKAWA , Tomohito MIZUNO
发明人： Satoshi TOMIKAWA , Tomohito MIZUNO
IPC分类号： G11B5/738 , G11B13/04
CPC分类号： G11B5/7325 , G11B5/314 , G11B2005/0021
摘要： A thermally-assisted magnetic recording (TAMR) medium of the present invention includes: a magnetization direction arrangement layer on a substrate; and a magnetic recording layer on the magnetization direction arrangement layer, wherein the magnetization direction arrangement layer is made of at least one selected from a group consisting of Co, Zr, CoZr, CoTaZr, CoFeTaZrCr, CoNbZr, CoNiZr, FeCoZrBCu, NiFe, FeCo, FeAlN, (FeCo)N, FeAlSi, and FeTaC so that a spreading of the heating spot applied from the magnetic head for thermally-assisted recording to the film surface of the magnetic recording medium is suppressed, and that an SN is improved by arranging the magnetization direction of the perpendicularly written recording magnetization to become identical to a perpendicular direction, and realizing the higher recording density.
摘要翻译：本发明的热辅助磁记录（TAMR）介质包括：基板上的磁化方向排列层; 和磁记录层，磁化方向布置层由选自Co，Zr，CoZr，CoTaZr，CoFeTaZrCr，CoNbZr，CoNiZr，FeCoZrBCu，NiFe，FeCo， FeAlN，（FeCo）N，FeAlSi和FeTaC，从而抑制从用于热辅助记录的磁头施加的加热点到磁记录介质的膜表面的扩散，并且通过将垂直写入的记录磁化的磁化方向变得与垂直方向相同，并且实现更高的记录密度。

5. 发明申请

US20140043707A1 ESTIMATION METHOD OF CURIE TEMPERATURE DISTRIBUTION WIDTH 有权
标题翻译： CURIE温度分布宽度的估计方法
公开(公告)号：US20140043707A1
公开(公告)日：2014-02-13
申请号：US13568572
申请日：2012-08-07
申请人： Satoshi TOMIKAWA , Tomohito MIZUNO
发明人： Satoshi TOMIKAWA , Tomohito MIZUNO
IPC分类号： G11B27/36
CPC分类号： G01R33/12 , G01R33/098
摘要： An estimation method includes a heating step in which a recording bit, on which a reference signal is recorded, is heated under each of heating conditions having different heating temperatures, the recording bit being at least one recording bit in the magnetic recording medium, and a measurement step in which a signal intensity with respect to the reference signal recorded in the recording bit after heating is measured under each of the heating conditions of the heating step. Based on the signal intensities with respect to the reference signal respectively measured in the measurement step, the distribution width of the Curie temperatures of the plurality of magnetic grains that form the magnetic recording layer is estimated.
摘要翻译：估计方法包括：加热步骤，其中记录有参考信号的记录位在具有不同加热温度的每个加热条件下被加热，所述记录位是磁记录介质中的至少一个记录位，以及测量步骤，其中在加热步骤的每个加热条件下测量相对于在加热之后记录在记录位中的参考信号的信号强度。基于相对于在测量步骤中测量的参考信号的信号强度，估计形成磁记录层的多个磁性颗粒的居里温度的分布宽度。

6. 发明申请

US20130016592A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY AND MAGNETIC RECORDING DEVICE 有权
标题翻译：热辅助磁记录头，磁头组件和磁记录装置
公开(公告)号：US20130016592A1
公开(公告)日：2013-01-17
申请号：US13182562
申请日：2011-07-14
申请人： Satoshi TOMIKAWA , Tomohito Mizuno , Katsuki Kurihara
发明人： Satoshi TOMIKAWA , Tomohito Mizuno , Katsuki Kurihara
IPC分类号： G11B13/04
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head, includes: a pole that generates a writing magnetic field from an end surface that forms a portion of an air bearing surface opposing a magnetic recording medium; a waveguide through which light for exciting a surface plasmon propagates; a plasmon generator that couples to the light in a surface plasmon mode and generates near-field light from a near-field light generating portion on a near-field light generating end surface that forms the portion of the air bearing surface; and magnetic field focusing parts that are able to focus the writing magnetic field generated from the pole and that are disposed on both sides of the pole in a track width direction from a perspective of the air bearing surface side.
摘要翻译：一种热辅助磁记录头，包括：极，其从形成与磁记录介质相对的空气轴承表面的一部分的端面产生书写磁场; 用于激发表面等离子体激元的光的波导传播; 等离子体发生器，其以表面等离子体模式耦合到所述光，并且在形成所述空气轴承表面的所述部分的近场光产生端面上产生来自近场光产生部分的近场光; 以及磁场聚焦部件，其能够将从极产生的写入磁场聚焦，并且从空气轴承表面侧的角度在轨道宽度方向上设置在磁极的两侧。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式