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61. 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。

62. 发明授权

US08087157B2 Process to manufacture magnetic tunnel junction read head 有权
标题翻译：制造磁性隧道结读头的工艺
公开(公告)号：US08087157B2
公开(公告)日：2012-01-03
申请号：US11975266
申请日：2007-10-18
申请人： Stuart Kao , Chunping Luo , Chaopeng Chen , Takahiko Machita , Daisuke Miyauchi , Jeiwei Chang
发明人： Stuart Kao , Chunping Luo , Chaopeng Chen , Takahiko Machita , Daisuke Miyauchi , Jeiwei Chang
IPC分类号： G11B5/187 , B44C1/22
CPC分类号： B82Y25/00 , B82Y10/00 , B82Y40/00 , G01R33/093 , G01R33/098 , G11B2005/3996 , H01F10/3263 , H01F41/308 , Y10T29/49021 , Y10T29/49037 , Y10T29/49039 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Using a beam of xenon ions together with a suitable mask, a MTJ stack is ion milled until a part of it, no more than about 0.1 microns thick, has been removed so that a pedestal, having sidewalls comprising a vertical section that includes all of the free layer, has been formed. This is followed by formation of the longitudinal bias and conductive lead layers in the usual way. Using xenon as the sputtering gas enables the point at which milling is terminated to be more precisely controlled.
摘要翻译：使用一束氙离子与合适的掩模，MTJ堆叠被离子研磨直到其不超过约0.1微米厚的一部分被去除，使得具有包括垂直部分的侧壁的基座包括全部自由层已形成。然后以通常的方式形成纵向偏置和导电引线层。使用氙气作为溅射气体，可以更精确地控制铣削终止点。

63. 发明授权

US08077559B1 Thermally-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：US08077559B1
公开(公告)日：2011-12-13
申请号：US12823491
申请日：2010-06-25
申请人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Katsuki Kurihara
发明人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G02B5/008 , G02B27/56 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： An outer surface of a plasmon generator includes: a plasmon exciting part that faces an evanescent light generating surface with a predetermined distance therebetween; and a front end face located in a medium facing surface. The plasmon generator has: first and second sidewall parts that are connected to the plasmon exciting part and increase in distance from each other with increasing distance from the plasmon exciting part; and at least one extended portion connected to an edge of at least one of the first and second sidewall parts opposite from the plasmon exciting part. A magnetic pole has a portion interposed between the first and second sidewall parts. The front end face includes first and second portions lying at ends of the first and second sidewall parts and connected to each other into a V-shape. An end face of the magnetic pole has a portion interposed between the first and second portions of the front end face.
摘要翻译：等离子体激元发生器的外表面包括：等离子体激元部分，其面对其间具有预定距离的渐逝光产生表面; 以及位于面向介质的表面中的前端面。等离子体发生器具有：第一和第二侧壁部分，其连接到等离子体激元部分，并且随着离等离子体激元部分的距离增加而彼此间隔距离增加; 以及至少一个连接到与所述等离子体激元部分相对的所述第一和第二侧壁部分中的至少一个的边缘的延伸部分。磁极具有介于第一和第二侧壁部分之间的部分。前端面包括位于第一和第二侧壁部分的端部处并且彼此连接成V形的第一和第二部分。磁极的端面具有插入在前端面的第一和第二部分之间的部分。

64. 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。

65. 发明授权

US07916429B2 Magnetic field detecting element having thin stack with a plurality of free layers and thick bias magnetic layer 有权
标题翻译：磁场检测元件具有薄堆叠，具有多个自由层和厚偏磁层
公开(公告)号：US07916429B2
公开(公告)日：2011-03-29
申请号：US11830122
申请日：2007-07-30
申请人： Daisuke Miyauchi , Takahiko Machita
发明人： Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B82Y25/00 , G01R33/093 , G11B5/3912 , G11B5/3932 , G11B5/398 , H01L43/12
摘要： A magnetic field detecting element comprising: a stack including an upper and magnetic layer, a lower magnetic layer, and a non-magnetic intermediate layer sandwiched therebetween, an upper and lower shield electrode layer provided in a manner that they sandwich said stack therebetween in a direction of stacking of the stack, wherein the upper and lower shield electrode layer supply sense current in the direction of stacking and magnetically shield the stack; a bias magnetic layer provided on a surface of the stack, the surface being opposite to an air bearing surface of said stack, and insulating films provided on both sides of the stack with regard to a track width direction thereof. The bias magnetic layer has a larger thickness than the stack, and the upper shield electrode layer and/or said lower shield electrode layer includes an auxiliary shield layer which fills a stepped portion formed by the stack and bias magnetic layer.
摘要翻译：一种磁场检测元件，包括：包括上层和下层磁性层以及夹在其间的非磁性中间层的层叠体，上下屏蔽电极层以将它们夹在其间的方式设置，堆叠的堆叠方向，其中上下屏蔽电极层沿着堆叠方向提供感测电流并磁屏蔽堆叠; 设置在堆叠表面上的偏置磁性层，该表面与所述叠层的空气轴承表面相对，以及设置在堆叠的两侧的绝缘膜相对于其轨道宽度方向。偏磁层的厚度大于叠层，上屏蔽电极层和/或所述下屏蔽电极层包括辅助屏蔽层，其填充由叠层和偏磁层形成的阶梯部分。

66. 发明授权

US07876534B2 Magneto-resistive effect device of the CPP type, and magnetic disk system 有权
标题翻译： CPP型磁阻效应器，磁盘系统
公开(公告)号：US07876534B2
公开(公告)日：2011-01-25
申请号：US12014575
申请日：2008-01-15
申请人： Tsutomu Chou , Yoshihiro Tsuchiya , Daisuke Miyauchi , Kiyoshi Noguchi
发明人： Tsutomu Chou , Yoshihiro Tsuchiya , Daisuke Miyauchi , Kiyoshi Noguchi
IPC分类号： G11B5/11 , G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3912 , G11B5/3932 , G11B2005/3996
摘要： A magnetoresistive device comprising a magnetoresistive unit, an upper shield layer and a lower shield layer stacked such that the magnetoresistive unit is held between them. The magnetoresistive unit comprises a nonmagnetic metal intermediate layer, a first ferromagnetic layer and a second ferromagnetic layer stacked with the nonmagnetic metal intermediate layer in the middle. When no bias magnetic field is applied, the first and second ferromagnetic layers have mutually antiparallel magnetizations. The magnetoresistive unit further comprises first and second side shield layers, and first and second biasing layers located to be magnetically coupled to the first and second side shield layers, wherein magnetic fluxes fed from the bias magnetic fields pass through the first and second side shield layers positioned in proximity to the magnetoresistive unit such that the magnetizations of the first and second ferromagnetic layers become substantially orthogonal to each other.
摘要翻译：磁阻器件包括磁阻单元，上屏蔽层和下屏蔽层，以使磁阻单元保持在它们之间。磁阻单元包括在中间与非磁性金属中间层堆叠的非磁性金属中间层，第一铁磁层和第二铁磁层。当不施加偏置磁场时，第一和第二铁磁层具有相互反平行的磁化。磁阻单元还包括第一和第二侧屏蔽层，以及第一和第二偏置层，其被定位成磁耦合到第一和第二侧屏蔽层，其中从偏置磁场馈送的磁通量通过第一和第二侧屏蔽层位于磁阻单元附近，使得第一和第二铁磁层的磁化基本上彼此正交。

67. 发明授权

US07869165B2 Magnetic field detecting element having stack with a plurality of free layers and side shield layers 有权
标题翻译：具有堆叠的多个自由层和侧面屏蔽层的磁场检测元件
公开(公告)号：US07869165B2
公开(公告)日：2011-01-11
申请号：US11830114
申请日：2007-07-30
申请人： Daisuke Miyauchi , Takahiko Machita
发明人： Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/39
CPC分类号： G11B5/3903 , B82Y25/00 , G01R33/093 , G11B5/3912 , H01L43/08
摘要： A magnetic field detecting element comprising: a stack including an upper magnetic layer, a lower magnetic layer and a non-magnetic intermediate layer sandwiched between said upper magnetic layer and said lower magnetic layer, wherein magnetization directions of said upper magnetic layer and said lower magnetic layer change in accordance with an external magnetic field; an upper shield electrode layer and a lower shield electrode layer which are provided in a manner that they sandwich said stack therebetween in a direction of stacking of said stack, wherein said upper shield electrode layer and said lower shield electrode layer supply sense current in the direction of stacking and magnetically shield said stack; a bias magnetic layer which is provided on a surface of said stack, the surface being opposite to an air bearing surface of said stack, wherein said bias magnetic layer applies a bias magnetic field to said upper magnetic layer and to said lower magnetic layer in a direction perpendicular to the air bearing surface; and a pair of side shield layers which are provided on both sides of said stack with regard to a track width direction.
摘要翻译：一种磁场检测元件，包括：包括上磁性层，下磁性层和夹在所述上磁性层和所述下磁性层之间的非磁性中间层的叠层，其中所述上磁层和所述下磁层的磁化方向根据外部磁场的层变化; 上屏蔽电极层和下屏蔽电极层，它们以堆叠方式将堆叠夹在其间的方式设置，其中所述上屏蔽电极层和所述下屏蔽电极层沿所述堆叠方向提供感测电流，堆叠并磁屏蔽所述堆叠; 偏置磁性层，其设置在所述堆叠的表面上，所述表面与所述堆叠的空气轴承表面相对，其中所述偏磁层将偏置磁场施加到所述上磁层和所述下磁层中方向垂直于空气轴承表面; 以及一对侧屏蔽层，其相对于轨道宽度方向设置在所述叠层的两侧。

68. 发明申请

US20110002199A1 Near-Field Light Generator Comprising Waveguide With Inclined End Surface 有权
标题翻译：包括倾斜端面波导的近场光发生器
公开(公告)号：US20110002199A1
公开(公告)日：2011-01-06
申请号：US12496340
申请日：2009-07-01
申请人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
发明人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
IPC分类号： G11B11/00 , G02B6/12 , G11B5/02
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译：提供能够避免产生的近场光的噪声的近场光发生器。发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声。

69. 发明申请

US20100290323A1 Near-field light generating device including near-field light generating element with edge part opposed to waveguide 有权
标题翻译：近场光产生装置包括具有与波导相对的边缘部分的近场光产生元件
公开(公告)号：US20100290323A1
公开(公告)日：2010-11-18
申请号：US12453508
申请日：2009-05-13
申请人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
发明人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
IPC分类号： G11B11/00 , G11B5/02 , G11B5/48 , C23C16/06
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/6005 , G11B2005/001 , G11B2005/0021
摘要： A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.
摘要翻译：近场光产生装置包括：具有在顶面开口的槽的波导; 包层，设置在波导的顶表面上，并且具有与槽邻接的开口; 容纳在所述开口中的近场光产生元件; 以及介于所述近场光产生元件与所述槽和所述开口中的所述波导和所述包覆层中的每一个之间的缓冲层。近场光产生元件包括：相对于凹槽彼此间隔距离减小的第一和第二侧表面; 边缘部分，其将所述第一和第二侧表面彼此连接并且与所述凹槽相对，其间具有缓冲层; 以及位于边缘部的一端的近场光产生部，产生近场光。

70. 发明申请

US20100027168A1 Thin film magnetic head having a pair of magnetic layers whose magnetization is controlled by shield layers 失效
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：US20100027168A1
公开(公告)日：2010-02-04
申请号：US12219841
申请日：2008-07-29
申请人： Tsutomu Chou , Yoshihiro Tsuchiya , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
发明人： Tsutomu Chou , Yoshihiro Tsuchiya , Shinji Hara , Daisuke Miyauchi , Takahiko Machita
IPC分类号： G11B5/33
CPC分类号： G01R33/093 , B82Y25/00 , G11B5/3912 , H01L43/08
摘要： A thin film magnetic head comprise an MR laminated body composed of a first and second MR magnetic layers, first and second shield layers, and a bias magnetic field application layer provided on an opposite side of an air bearing surface (ABS) of the MR laminated body in order to apply a bias magnetic field orthogonal relative to the ABS. The first shield layer comprises a first exchange coupling magnetic field application layer, a first antimagnetic layer, a second exchange coupling magnetic field application layer, and a second antimagnetic layer. The first antimagnetic layer is provided in contact with the first exchange coupling magnetic field application layer on the rear face of the first exchange coupling magnetic field application layer and which is antimagnetically coupled with the first exchange coupling magnetic field application layer. The second shield layer has the same configuration as that of the first shield layer.
摘要翻译：薄膜磁头包括由第一和第二MR磁性层，第一和第二屏蔽层以及设置在MR叠层的空气轴承表面（ABS）的相对侧上的偏置磁场施加层组成的MR层叠体以便施加相对于ABS正交的偏置磁场。第一屏蔽层包括第一交换耦合磁场施加层，第一防磁层，第二交换耦合磁场施加层和第二防磁层。第一防磁层设置成与第一交换耦合磁场施加层的背面上的第一交换耦合磁场施加层接触，并且与第一交换耦合磁场施加层反磁耦合。第二屏蔽层具有与第一屏蔽层相同的构造。

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