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111. 发明授权

US08189303B2 Thin film magnetic head having a pair of magnetic layers whose magnetization is controlled by shield layers 有权
标题翻译：薄膜磁头具有一对磁性层，其磁化由屏蔽层控制
公开(公告)号：US08189303B2
公开(公告)日：2012-05-29
申请号：US12222543
申请日：2008-08-12
申请人： Shinji Hara , Yoshihiro Tsuchiya , Tsutomu Chou , Daisuke Miyauchi , Takahiko Machita
发明人： Shinji Hara , Yoshihiro Tsuchiya , Tsutomu Chou , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/39 , G11B5/11
CPC分类号： G11B5/3912 , B82Y25/00 , G01R31/318536 , G01R31/318541 , G01R33/093
摘要： A thin film magnetic head includes a magneto-resistance (MR) laminated body, a lower shield layer and an upper shield layer that face the first MR magnetic layer. The lower and upper shield layers respectively have first and second anti-parallel layers and first and second antiferromagnetic layers. An exchange coupling intensity relating to an antiferromagnetic coupling between the second anti-parallel layer and the second antiferromagnetic layer is greater in the peripheral area of a projection area than that of the projection area of the upper shield layer side end surface of the MR laminated body to the film surface's orthogonal direction.
摘要翻译：薄膜磁头包括面对第一MR磁性层的磁阻（MR）层叠体，下屏蔽层和上屏蔽层。下屏蔽层和上屏蔽层分别具有第一和第二反平行层以及第一和第二反铁磁层。与第二反平行层和第二反铁磁性层之间的反铁磁耦合有关的交换耦合强度在投影区域的周边区域中大于MR层叠体的上屏蔽层侧端面的投影面积到膜表面的正交方向。

112. 发明申请

US20120120781A1 Thermally-Assisted Head Including Surface-Plasmon Resonant Optical System 有权
标题翻译：热辅助头包括表面等离子体共振光学系统
公开(公告)号：US20120120781A1
公开(公告)日：2012-05-17
申请号：US12946196
申请日：2010-11-15
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
IPC分类号： G11B13/08 , F21V8/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/105 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： Provided is a surface plasmon resonating optical system emitting near-field light (NF-light) with a higher light density. The system comprises: a waveguide through which a light for exciting surface plasmon propagates; a plasmon generator that couples with the light in a surface plasmon mode and emits NF-light from its NF-light generating end surface; and a resonator mirror that reflects the excited surface plasmon, provided on the side of the plasmon generator opposite to the NF-light generating end surface. In the system, the excited surface plasmon can be amplified by using a resonator structure while reducing the length of the plasmon generator to reduce absorption of surface plasmon and prevent overheating of the plasmon generator.
摘要翻译：提供了具有较高光密度的发射近场光（NF-光）的表面等离子体共振光学系统。该系统包括：用于激发表面等离子体激元的光传播的波导; 等离子体发生器，其以表面等离子体模式耦合光并从其NF光产生端表面发射NF光; 以及反射激发的表面等离子体的谐振镜，设置在等离子体发生器的与NF发光端面相对的一侧。在该系统中，可以通过使用谐振器结构来放大激发的表面等离子体激元，同时减少等离子体发生器的长度以减少表面等离子体的吸收并防止等离子体发生器的过热。

113. 发明授权

US08170389B1 Optical waveguide, and thermally-assisted magnetic recording head including the same 有权
标题翻译：光波导和包括其的热辅助磁记录头
公开(公告)号：US08170389B1
公开(公告)日：2012-05-01
申请号：US13016085
申请日：2011-01-28
申请人： Eiji Komura , Tsutomu Chou
发明人： Eiji Komura , Tsutomu Chou
IPC分类号： G02B6/10
CPC分类号： G02B6/1228 , B82Y20/00 , G02B6/1226 , G02B6/4203 , G11B5/314 , G11B5/4866 , G11B2005/0021
摘要： An optical waveguide includes a core and a clad. The core includes first to third propagation parts, and a coupling part that couples the first to third propagation parts together. The first propagation part has a first incidence end face on which part of incident light is incident, and a first emission part that emits first propagation light. The second propagation part has a second incidence end face on which another part of the incident light is incident, and a second emission part that emits second propagation light. In the coupling part, a first light wave resulting from the first propagation light and a second light wave resulting from the second propagation light occur, and the first and second light waves interfere with each other to generate third propagation light to be emitted from a third emission part. The third propagation part propagates the third propagation light.
摘要翻译：光波导包括芯和包层。芯部包括第一至第三传播部分，以及将第一至第三传播部分耦合在一起的耦合部分。第一传播部分具有入射光的一部分入射的第一入射端面和发射第一传播光的第一发射部分。第二传播部分具有入射光的另一部分入射的第二入射端面和发射第二传播光的第二发射部分。在耦合部分中，产生由第一传播光产生的第一光波和由第二传播光产生的第二光波，并且第一和第二光波彼此干涉以产生将从第三传播光发射的第三传播光排放部分。第三传播部分传播第三传播光。

114. 发明申请

US20120084969A1 METHOD OF MANUFACTURING THERMAL ASSISTED MAGNETIC WRITE HEAD 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US20120084969A1
公开(公告)日：2012-04-12
申请号：US12902755
申请日：2010-10-12
申请人： Kosuke TANAKA , Shinji HARA , Tsutomu CHOU , Yasutoshi FUJITA
发明人： Kosuke TANAKA , Shinji HARA , Tsutomu CHOU , Yasutoshi FUJITA
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A method of manufacturing a thermally-assisted magnetic write head is provided. The method includes steps of: forming a laminate structure including the waveguide; the plasmon generator, and the magnetic pole in order; performing a first polishing process to planarize an end surface of the laminate structure; performing a first etching process to remove impurity attached on the end surface of the laminate structure, and to allow the plasmon generator to be recessed from the waveguide and the magnetic pole, thereby forming a recessed region on the end surface of the laminate structure; forming a protection layer on the end surface of the laminate structure such that at least the recessed region is filled; and performing a second polishing process on the end surface of the laminate structure formed with the protection layer until the plasmon generator is exposed, thereby completing the air bearing surface.
摘要翻译：提供一种制造热辅助写磁头的方法。该方法包括以下步骤：形成包括波导的层压结构; 等离子体发生器和磁极; 执行第一抛光工艺以使层压结构的端面平坦化; 执行第一蚀刻工艺以去除附着在层压结构的端面上的杂质，并允许等离子体激元发生器从波导和磁极凹陷，从而在层压结构的端面上形成凹陷区域; 在所述层压结构的端面上形成保护层，使得至少所述凹陷区域被填充; 并在形成有保护层的叠层结构的端面进行第二抛光处理，直到等离子体激元发生器露出为止，从而完成空气支承面。

115. 发明申请

US20120075967A1 THERMALLY ASSISTED MAGNETIC RECORDING HEAD 有权
标题翻译：热辅助磁记录头
公开(公告)号：US20120075967A1
公开(公告)日：2012-03-29
申请号：US12892540
申请日：2010-09-28
申请人： Tsutomu Chou , Eiji Komura , Shinji Hara , Kosuke Tanaka , Daisuke Miyauchi
发明人： Tsutomu Chou , Eiji Komura , Shinji Hara , Kosuke Tanaka , Daisuke Miyauchi
IPC分类号： G11B11/24
CPC分类号： G11B5/3116 , G02B5/008 , G11B5/314 , G11B5/3163 , G11B2005/0021
摘要： A thermally assisted magnetic head includes a magnetic pole that generates a writing magnetic field from an air bearing surface (ABS); a waveguide through which light propagates; and a plasmon generator generating near-field light from a near-field light generating end surface by coupling the light thereto in a surface plasmon mode. The magnetic pole includes a convex part protruding in a substantially V-shape along a light propagation direction of the waveguide. The plasmon generator includes a substantially V-shaped part contacting the convex part, and as seen from a side of the ABS, a thickness of the plasmon generator in a direction perpendicular to convex part contacting sides gradually increases from an end in a direction away from the waveguide, the convex part contacting sides being linear sides that form the substantially V-shaped part of the plasmon generator and contacting the convex part.
摘要翻译：热辅助磁头包括从空气轴承表面（ABS）产生书写磁场的磁极; 光传播的波导; 以及等离子体发生器，其通过以表面等离子体激发模式将光耦合到其上，从近场光产生端面产生近场光。磁极包括沿波导的光传播方向大致V形突出的凸部。等离子体发生器包括接触凸部的大致V形部分，并且从ABS的侧面看，等离子体发生器在与凸部接触的方向垂直的方向上的厚度从远离方向的端部逐渐增加所述波导，所述凸部接触侧为直线侧，其形成所述等离子体发生器的大致V形部分并接触所述凸部。

116. 发明授权

US08049997B2 Magnetoresistive element including a pair of free layers coupled to a pair of shield layers 有权
标题翻译：磁阻元件包括耦合到一对屏蔽层的一对自由层
公开(公告)号：US08049997B2
公开(公告)日：2011-11-01
申请号：US12285069
申请日：2008-09-29
申请人： Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Takahiko Machita , Koji Shimazawa
发明人： Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Takahiko Machita , Koji Shimazawa
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B5/3967 , H01F10/3254 , H01F10/3272 , H01L43/08
摘要： A first shield portion located below an MR stack includes a first main shield layer, a first antiferromagnetic layer, and a first magnetization controlling layer including a first ferromagnetic layer exchange-coupled to the first antiferromagnetic layer. A second shield portion located on the MR stack includes a second main shield layer, a second antiferromagnetic layer, and a second magnetization controlling layer including a second ferromagnetic layer exchange-coupled to the second antiferromagnetic layer. The MR stack includes two free layers magnetically coupled to the two magnetization controlling layers. Only one of the two magnetization controlling layers includes a third ferromagnetic layer that is antiferromagnetically exchange-coupled to the first or second ferromagnetic layer through a nonmagnetic middle layer. The first shield portion includes an underlayer disposed on the first main shield layer, and the first antiferromagnetic layer is disposed on the underlayer.
摘要翻译：位于MR堆叠下方的第一屏蔽部分包括第一主屏蔽层，第一反铁磁层和包括与第一反铁磁层交换耦合的第一铁磁层的第一磁化控制层。位于MR堆叠上的第二屏蔽部分包括第二主屏蔽层，第二反铁磁层和包括交换耦合到第二反铁磁层的第二铁磁层的第二磁化控制层。 MR堆叠包括磁耦合到两个磁化控制层的两个自由层。两个磁化控制层中的仅一个包括通过非磁性中间层反铁磁交换耦合到第一或第二铁磁层的第三铁磁层。第一屏蔽部分包括设置在第一主屏蔽层上的底层，并且第一反铁磁层设置在底层上。

117. 发明申请

US20110228419A1 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：US20110228419A1
公开(公告)日：2011-09-22
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： G11B5/02
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。

118. 发明申请

US20110164479A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING WAVEGUIDE WITH INVERTED-TRAPEZOIDAL SHAPE 有权
标题翻译：带有倒角形状的包含波导的热辅助磁记录头
公开(公告)号：US20110164479A1
公开(公告)日：2011-07-07
申请号：US12683041
申请日：2010-01-06
申请人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Kosuke TANAKA
发明人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Kosuke TANAKA
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head comprising a near-field-light-generating (NFL-generating) optical system with an improved light use efficiency. The head comprises a magnetic pole, a waveguide propagating a light for exciting surface plasmon, and a NF-optical device configured to emit NF-light from its end surface located adjacent to the magnetic pole end surface. The waveguide cross-section, taken by a plane perpendicular to a waveguide edge along elongated direction, has substantially a trapezoidal shape in which a longer side of opposed parallel sides is an edge of the cross-section on the NF-optical device side. This configuration enables a coupled portion of the NF-optical device which is coupled with the light to be placed in the effective distribution range of the light seeping from the waveguide. Consequently, there can be realized a sufficiently strong coupling between the light seeping from the waveguide and the NF-optical device.
摘要翻译：提供了一种热辅助磁记录头，其包括具有改善的光利用效率的近场光产生（NFL生成）光学系统。头包括磁极，传播用于激发表面等离子体激元的光的波导和被配置为从其邻近磁极端表面的端表面发射NF光的NF光学装置。波导横截面由沿着细长方向垂直于波导边缘的平面截取，具有基本上梯形的形状，其中相对的平行边的较长边是NF光学器件侧的横截面的边缘。该配置使得能够将与光耦合的NF光学器件的耦合部分放置在从波导管渗出的光的有效分布范围内。因此，可以实现从波导管和NF光学器件渗出的光之间的足够强的耦合。

119. 发明授权

US07957108B2 Magnetoresistive element having spacer layer that includes two layered regions composed of oxide semiconductor and nonmagnetic conductor phase sandwiched therebetween 有权
标题翻译：具有间隔层的磁阻元件包括由氧化物半导体和夹在其间的非磁性导体相组成的两个层状区域
公开(公告)号：US07957108B2
公开(公告)日：2011-06-07
申请号：US11889012
申请日：2007-08-08
申请人： Tsutomu Chou , Tomohito Mizuno
发明人： Tsutomu Chou , Tomohito Mizuno
IPC分类号： G11B5/39 , H04R31/00
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B2005/3996 , Y10T29/49032
摘要： An MR element includes a free layer having a direction of magnetization that changes in response to an external magnetic field, a pinned layer having a fixed direction of magnetization, and a spacer layer disposed between these layers. The spacer layer includes a first region, a second region and a third region that are each in the form of a layer and that are arranged in a direction intersecting the plane of each of the foregoing layers. The second region is sandwiched between the first region and the third region. The first region and the third region are each composed of an oxide semiconductor, and the second region includes at least a nonmagnetic conductor phase.
摘要翻译： MR元件包括具有响应于外部磁场而变化的磁化方向的自由层，具有固定的磁化方向的被钉扎层以及设置在这些层之间的间隔层。间隔层包括第一区域，第二区域和第三区域，其各自为层的形式，并且沿与每个前述层的平面交叉的方向布置。第二区域夹在第一区域和第三区域之间。第一区域和第三区域各自由氧化物半导体构成，第二区域至少包括非磁性导体相。

120. 发明申请

US20110116349A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING NEAR-FIELD OPTICAL DEVICE WITH PROPAGATION EDGE 有权
标题翻译：包含传播边缘的近场光学装置的热辅助磁记录头
公开(公告)号：US20110116349A1
公开(公告)日：2011-05-19
申请号：US12617853
申请日：2009-11-13
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 , G11B5/1278 , G11B5/6005 , G11B5/6088 , G11B2005/0005 , 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: a contact-to-waveguide surface having a contact to the waveguide; and a propagation edge provided on the side opposite to the contact-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 is reliably 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光学器件包括：具有与波导的接触的接触到波导表面; 以及设置在与所述接触到所述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所述表面等离子体。在该光学系统中，NFL产生端面的产生NF光的点可靠地位于与波导相反的一侧。

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