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11. 发明授权

US08405935B2 Magneto-resistive effect element having spacer layer including main spacer layer containing gallium oxide and nonmagnetic layer 有权
标题翻译：具有间隔层的磁阻效应元件包括含有氧化镓和非磁性层的主间隔层
公开(公告)号：US08405935B2
公开(公告)日：2013-03-26
申请号：US12979613
申请日：2010-12-28
申请人： Tsutomu Chou , Yoshihiro Tsuchiya , Hironobu Matsuzawa , Hayato Koike
发明人： Tsutomu Chou , Yoshihiro Tsuchiya , Hironobu Matsuzawa , Hayato Koike
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3929 , G11B2005/3996 , Y10T428/1121
摘要： A magnetoresistive effect element (MR element) includes first and second magnetic layers of which relative angles formed by magnetization directions change in relation to an external magnetic field; and a spacer layer positioned between the first magnetic layer and the second magnetic layer. The first magnetic layer is positioned on a side closer than the second magnetic layer in regards to a substrate above which the magnetoresistive effect element is formed, and the spacer layer includes a main spacer layer made of gallium oxide as the primary component, and a first nonmagnetic layer positioned between the main spacer layer and the first magnetic layer and contains copper and gallium.
摘要翻译：磁阻效应元件（MR元件）包括由磁化方向形成的相对角度相对于外部磁场而变化的第一和第二磁性层; 以及位于所述第一磁性层和所述第二磁性层之间的间隔层。相对于其上形成有磁阻效应元件的基板，第一磁性层位于比第二磁性层更靠近的一侧，并且间隔层包括以氧化镓为主要成分的主间隔层，第一磁性层位于主间隔层和第一磁性层之间并且包含铜和镓的非磁性层。

12. 发明授权

US08310791B2 Magnetoresistive effect element and magnetic disk device 有权
标题翻译：磁阻效应元件和磁盘装置
公开(公告)号：US08310791B2
公开(公告)日：2012-11-13
申请号：US12382309
申请日：2009-03-13
申请人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
发明人： Takahiko Machita , Tomohito Mizuno , Koji Shimazawa , Tsutomu Chou , Daisuke Miyauchi , Yoshihiro Tsuchiya , Shinji Hara , Toshiyuki Ayukawa
IPC分类号： G11B5/39
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A magnetoresistive effect element is structured in the manner that the antiferromagnetic layer interposed between the upper and lower shields is eliminated and the antiferromagnetic layer is positioned in a so-called shield layer. Therefore, it is realized to solve a pin reversal problem and to allow narrower tracks and narrower read gaps.
摘要翻译：磁阻效应元件的结构是，插入在上屏蔽和下屏蔽之间的反铁磁层被消除，反铁磁层位于所谓的屏蔽层中。因此，实现了解决引脚反转问题并且允许更窄的轨道和更窄的读取间隙。

13. 发明授权

US08264920B1 Near-field light generator and thermally-assisted magnetic recording head 有权
标题翻译：近场光发生器和热辅助磁记录头
公开(公告)号：US08264920B1
公开(公告)日：2012-09-11
申请号：US13191913
申请日：2011-07-27
申请人： Tsutomu Chou , Eiji Komura , Shinji Hara , Daisuke Miyauchi , Kosuke Tanaka
发明人： Tsutomu Chou , Eiji Komura , Shinji Hara , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00 , G11B7/135
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： A near-field light generator includes a waveguide, a plasmon generator, and a metal layer. The waveguide includes a core having an evanescent light generating surface. The plasmon generator includes a base part, and a protruding part that protrudes from the base part toward the evanescent light generating surface. The protruding part has: a front end face located at an end in a direction parallel to the evanescent light generating surface; a band-shaped flat surface facing toward the evanescent light generating surface; and two side surfaces connected to the flat surface. In at least a portion of the protruding part, the distance between the two side surfaces increases with increasing distance from the evanescent light generating surface. The flat surface includes a first portion contiguous with the front end face, and a second portion that is located farther from the front end face than is the first portion. The metal layer has an end face facing the first portion. The evanescent light generating surface faces the second portion.
摘要翻译：近场光发生器包括波导管，等离子体激元发生器和金属层。波导包括具有ev逝光产生表面的芯。等离子体发生器包括基部和从基部朝向渐逝光产生表面突出的突出部分。所述突出部具有：前端面，其位于与所述ev逝光生成面平行的方向的端部; 面向渐逝光产生表面的带状平坦表面; 以及连接到平坦表面的两个侧表面。在突出部分的至少一部分中，两个侧表面之间的距离随着与渐消光产生表面的距离的增加而增加。平坦表面包括与前端面相邻的第一部分，以及比第一部分更远离前端面的第二部分。金属层具有面向第一部分的端面。渐逝光产生表面面向第二部分。

14. 发明授权

US08264919B2 Thermal assisted magnetic recording head having spot size converter 有权
标题翻译：具有光斑尺寸转换器的热辅助磁记录头
公开(公告)号：US08264919B2
公开(公告)日：2012-09-11
申请号：US12659094
申请日：2010-02-25
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Seiichi Takayama
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Seiichi Takayama
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G02B6/1228 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A spot size converter according to the present invention is capable of shortening the waveguide length in the spot size converter and of promoting a size reduction of the optical waveguide itself because two cores having a taper portion are combined and those tapering angles are mutually aligned. Furthermore, spot size conversion efficiency is favorable even in a small size.
摘要翻译：根据本发明的点尺寸转换器能够缩短光斑尺寸转换器中的波导长度并且促进光波导本身的尺寸减小，因为具有锥形部分的两个芯体组合并且这些渐缩角度相互对准。此外，即使在小尺寸的情况下，光斑尺寸转换效率也是有利的。

15. 发明授权

US08130599B2 Thermally-assisted magnetic recording head comprising near-field optical device with propagation edge 有权
标题翻译：包括具有传播边缘的近场光学装置的热辅助磁记录头
公开(公告)号：US08130599B2
公开(公告)日：2012-03-06
申请号：US12616924
申请日：2009-11-12
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： There is provided a near-field-light (NFL) generating optical system in which the point where near-field (NF) light is generated can be provided sufficiently close to the end surface of a magnetic pole that generates write field. The optical system comprises: a waveguide through which a light for exciting surface plasmon propagates; and a NF-optical device configured to be coupled with the light in a surface plasmon mode. The NF-optical device comprises: an opposed-to-waveguide surface opposed to the waveguide with a predetermined distance; and a propagation edge provided on the side opposite to the opposed-to-waveguide surface, extending to the NFL-generating end surface of the device, and configured to propagate thereon the surface plasmon excited by the light. In this optical system, the point, where NF-light is generated, of the NFL-generating end surface can be located on the side opposite to the waveguide.
摘要翻译：提供了一种产生近场（NF）光的点的近场光（NFL）产生光学系统，其可以充分靠近生成写入场的磁极的端面附近。该光学系统包括：用于激发表面等离子体激元的光传播的波导; 以及配置成以表面等离子体激发模式与光耦合的NF光学装置。 NF型光学器件包括：与波导相对的与波导相对的预定距离的相对的波导表面; 以及设置在与所述相对的波导表面相对的一侧的传播边缘，延伸到所述装置的产生NFL的端面，并且被配置为在其上传播由所述光激发的表面等离子体。在该光学系统中，产生NFL的点的产生NFL的端面可以位于与波导相对的一侧。

16. 发明授权

US08125857B2 Heat-assisted magnetic recording head including plasmon generator 有权
标题翻译：热辅助磁记录头包括等离子体发生器
公开(公告)号：US08125857B2
公开(公告)日：2012-02-28
申请号：US12728600
申请日：2010-03-22
申请人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Shinji Hara , Eiji Komura
发明人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Shinji Hara , Eiji Komura
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A plasmon generator has an outer surface including a propagation edge, and has a near-field light generating part lying at an end of the propagation edge and located in a medium facing surface. The propagation edge faces an evanescent light generating surface of a waveguide's core with a predetermined distance therebetween and extends in a direction perpendicular to the medium facing surface. The propagation edge is arc-shaped in a cross section parallel to the medium facing surface. The plasmon generator includes a shape changing portion in which a radius of curvature of the propagation edge in the cross section parallel to the medium facing surface continuously decreases with decreasing distance to the medium facing surface.
摘要翻译：等离子体发生器具有包括传播边缘的外表面，并且具有位于传播边缘的末端并位于面向介质的表面中的近场光产生部分。传播边缘面向波导芯的ev逝光产生表面，其间具有预定距离，并且在垂直于介质面向表面的方向上延伸。传播边缘在平行于面向介质的表面的横截面中是弧形的。等离子体发生器包括形状改变部分，其中平面于介质面向表面的横截面中的传播边缘的曲率半径随着到面向介质的表面的距离的减小而连续地减小。

17. 发明申请

US20120026846A1 Thermally-Assisted Magnetic Recording Head Comprising Characteristic Clads 有权
标题翻译：包括特征包层的热辅助磁记录头
公开(公告)号：US20120026846A1
公开(公告)日：2012-02-02
申请号：US12848422
申请日：2010-08-02
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head with improved light density of near-field light (NF-light) with which a medium is irradiated. The head comprises: a magnetic pole; a waveguide for propagating light for exciting surface plasmon; a surface plasmon generator provided between the magnetic pole and the waveguide, coupled with the light in a surface plasmon mode, and emitting NF-light; and a clad portion provided at least between the waveguide and the surface plasmon generator and comprising a transition region in which a refractive index decreases along a direction from the waveguide toward the magnetic pole. The provision of the clad portion including the transition region enables improvement of the light density of NF-light due to the convergence of surface plasmon excited in the surface plasmon generator to predetermined locations, while avoiding the problem of temperature rise due to reduction of the volume of surface plasmon generator.
摘要翻译：提供了一种具有改善的照射介质的近场光（NF光）的光密度的热辅助磁记录头。磁头包括：磁极; 用于传播激发表面等离子体激元的光的波导; 设置在磁极和波导之间的表面等离子体发生器，与表面等离子体模式的光耦合，并发射NF光; 以及至少在波导管和表面等离子体激元发生器之间设置的包层部分，并且包括其中折射率沿着从波导到磁极的方向减小的过渡区域。提供包括过渡区域的包层部分能够改善由于在表面等离子体发生器中激发的表面等离子体激元的会聚而导致的NF光的光密度到预定位置，同时避免由于体积的减小导致的温度上升的问题的表面等离子体发生器。

18. 发明授权

US08031444B2 Magnetoresistive device of the CPP type, and magnetic disk system 有权
标题翻译： CPP型磁阻器和磁盘系统
公开(公告)号：US08031444B2
公开(公告)日：2011-10-04
申请号：US12255105
申请日：2008-10-21
申请人： Tsutomu Chou , Tomohito Mizuno , Koji Shimazawa , Yoshihiro Tsuchiya , Shinji Hara , Hironobu Matsuzawa
发明人： Tsutomu Chou , Tomohito Mizuno , Koji Shimazawa , Yoshihiro Tsuchiya , Shinji Hara , Hironobu Matsuzawa
IPC分类号： G11B5/33
CPC分类号： G11B5/3906 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/3967 , G11B2005/3996 , H01F10/3254 , H01L43/10
摘要： The semiconductor oxide layer that forms a part of the spacer layer in the inventive giant magnetoresistive device (CPP-GMR device) is composed of zinc oxide of wurtzite structure that is doped with a dopant given by at least one metal element selected from the group consisting of Zn, Ge, V, and Cr in a content of 0.05 to 0.90 at %: there is the advantage obtained that ever higher MR ratios are achievable while holding back an increase in the area resistivity AR.
摘要翻译：在本发明的巨磁阻器件（CPP-GMR器件）中形成间隔层的一部分的半导体氧化物层由纤锌矿结构的氧化锌组成，该氧化锌掺杂有至少一种选自以下的金属元素的掺杂剂：的Zn，Ge，V和Cr的含量为0.05〜0.90原子％：具有获得更高MR比可以实现的优点，同时阻止面积电阻率AR的增加。

19. 发明申请

US20110216634A1 HEAT-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR 有权
标题翻译：热辅助磁记录头，包括等离子发生器
公开(公告)号：US20110216634A1
公开(公告)日：2011-09-08
申请号：US12719496
申请日：2010-03-08
申请人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Shinji Hara
发明人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Shinji Hara
IPC分类号： G11B11/00 , G11B5/02
CPC分类号： G11B11/00 , G11B5/02
摘要： A plasmon generator has a near-field light generating part located in a medium facing surface. The plasmon generator has an outer surface including a plasmon exciting surface and a plasmon propagating surface that face toward opposite directions. The plasmon exciting surface is substantially in contact with an evanescent light generating surface of a waveguide's core. The plasmon propagating surface is in contact with a dielectric layer that has a refractive index lower than that of the core. The plasmon exciting surface includes a first width changing portion. The plasmon propagating surface includes a second width changing portion. Each of the first and second width changing portions has a width that decreases with decreasing distance to the medium facing surface, the width being in a direction parallel to the medium facing surface and the evanescent light generating surface.
摘要翻译：等离子体发生器具有位于介质面对表面中的近场光产生部分。等离子体发生器具有外表面，其包括面向相反方向的等离子体激元表面和等离子体激元传播表面。等离子体激元表面基本上与波导芯的瞬逝光产生表面接触。等离子体激元传播表面与折射率低于芯的折射率的电介质层接触。等离子体激元表面包括第一宽度改变部分。等离子体激元传播表面包括第二宽度改变部分。第一和第二宽度改变部分中的每一个具有随着到介质面对表面的距离的减小而减小的宽度，宽度在平行于介质面向表面和渐逝光产生表面的方向上。

20. 发明申请

US20110176398A1 Thermally-Assisted Magnetic Recording Head Having Near-Field Optical Device with Propagation Edge 有权
标题翻译：具有传播边缘的近场光学器件的热辅助磁记录头
公开(公告)号：US20110176398A1
公开(公告)日：2011-07-21
申请号：US12688367
申请日：2010-01-15
申请人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
发明人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a waveguide through which a light for exciting surface plasmon propagates, a near-field optical device configured to be coupled with the light in a surface plasmon mode and to emit near-field light from a near-field-light-generating end surface that forms a portion of an opposed-to-medium surface, and a magnetic pole for generating write field from its end on the opposed-to-medium surface side. The near-field optical device includes a contact-to-waveguide surface having a contact to the waveguide, and a propagation edge provided on a side opposite to the contact-to-waveguide surface, extending to the near-field-light-generating end surface, and configured to propagate there on the surface plasmon excited by the light. A gap between a near-field optical device-opposed surface of the magnetic pole and the propagation edge of the near-field optical device is larger at a section far from the end on the opposed-to-medium surface side than that at a section near the on the opposed-to-medium surface side.
摘要翻译：热辅助磁记录头包括用于激发表面等离子体激元的光传播的波导，被配置成以表面等离子体激元模式与光耦合的近场光学装置，并且从近场发射近场光形成相对中间表面的一部分的光产生端面，以及用于从其相对中间表面侧的端部产生写入场的磁极。近场光学器件包括与波导接触的接触到波导表面，以及设置在与波导表面相对的一侧的传播边缘，延伸到近场光产生端并且被配置为在由光激发的表面等离子体上传播。磁场的近场光学器件相对表面与近场光学器件的传播边缘之间的间隙在远离相对于介质表面侧的端部的部分处比在部分靠近对面 - 中等表面侧。

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