公开(公告)号：US5852533A

公开(公告)日：1998-12-22

申请号：US686717

申请日：1996-07-26

申请人： Daisuke Miyauchi ,  Eiichi Omata ,  Hajime Amano ,  Tetsuro Sasaki ,  Yasufumi Uno

发明人： Daisuke Miyauchi ,  Eiichi Omata ,  Hajime Amano ,  Tetsuro Sasaki ,  Yasufumi Uno

IPC分类号： G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3932 ,  G11B5/3967 ,  G11B2005/3996

摘要： The present invention is directed to a magnetic transducer element with outstanding productivity, with which the track width can be defined to a high degree of accuracy and required magnetic characteristics can be reliably imposed upon the central active area. Laminated films which generate a magnetoresistance effect, a magnetic domain control film, which applies a magnetic bias to the laminated films and a pair of lead conductor films are provided. The laminated films and the magnetic domain control film are laminated to each other to constitute a central active area. The lead conductor films terminate the side end surfaces of the central active area at the two sides in direction running at a right angle to direction of the lamination of the central active area.

摘要翻译： 本发明涉及一种具有出色的生产率的磁换能器元件，可以将磁道宽度定义为高精度，并且可以可靠地对中心有效区域施加所需的磁特性。 提供了产生磁阻效应的层压膜，对层叠膜施加磁偏置的磁畴控制膜和一对引线导体膜。 叠层膜和磁畴控制膜彼此层叠以构成中心活性区域。 引线导体膜在与中心活动区域的层压方向成直角的方向上的两侧终止中心有源区域的侧端面。

公开(公告)号：US6093444A

公开(公告)日：2000-07-25

申请号：US998695

申请日：1997-12-29

申请人： Daisuke Miyauchi ,  Tetsuro Sasaki ,  Eiichi Omata

发明人： Daisuke Miyauchi ,  Tetsuro Sasaki ,  Eiichi Omata

IPC分类号： G01R33/09 ,  G11B5/31 ,  G11B5/39 ,  H01F41/30 ,  G11B5/66

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/39 ,  G11B5/3903 ,  H01F41/302 ,  G11B2005/3996 ,  G11B5/3163

摘要： A MR transducer with a spin-valve structure formed on a substrate. The spin-valve structure has at least an antiferromagnetic material layer made of a NiMn alloy, a first ferromagnetic material layer, a nonmagnetic material layer and a second ferromagnetic material layer sequentially deposited on the substrate in this order.

摘要翻译： 具有形成在基板上的自旋阀结构的MR换能器。 自旋阀结构至少具有由NiMn合金制成的反铁磁材料层，第一铁磁材料层，非磁性材料层和第二铁磁材料层，其顺序地沉积在基板上。

公开(公告)号：US5772794A

公开(公告)日：1998-06-30

申请号：US729762

申请日：1996-10-07

申请人： Yasufumi Uno ,  Daisuke Miyauchi ,  Mikio Matsuzaki

发明人： Yasufumi Uno ,  Daisuke Miyauchi ,  Mikio Matsuzaki

IPC分类号： G11B5/39 ,  C21D1/04

CPC分类号： G11B5/3903 ,  G11B5/3932 ,  Y10T29/49034

摘要： A method of manufacturing a magnetic head apparatus with a magnetoresistive head utilizing the spin valve effect includes a final heat treatment step (S14) of heating the multi-layered spin valve structure (15) with application of a magnetic field in a direction perpendicular to a track width direction of the spin valve magnetoresistive head so that a thin film layer of soft ferromagnetic material (3, 5) to be pinned by a thin film layer of antiferromagnetic material (6) has a uniaxial anisotropy. This final heat treatment step (S14) is executed after all the steps (S1, S3, S5, S7, S8, S9, S11) each of which includes a heat treatment stage executed at a temperature which will vary a uniaxial anisotropy of the pinned thin film layer of soft ferromagnetic material (3,5) are completed.

摘要翻译： 利用自旋阀效应制造具有磁阻头的磁头装置的方法包括：加热多层自旋阀结构（15）的最终热处理步骤（S14），其中在垂直于 自旋阀磁阻头的轨道宽度方向，由反铁磁材料（6）的薄膜层固定的软铁磁材料（3,5）的薄膜层具有单轴各向异性。 在所有步骤（S1，S3，S5，S7，S8，S9，S11）之后执行该最终热处理步骤（S14），其中每个步骤包括在将改变被钉扎的单轴各向异性的温度下执行的热处理阶段 完成软铁磁材料薄膜层（3,5）。

公开(公告)号：US08437106B2

公开(公告)日：2013-05-07

申请号：US12900845

申请日：2010-10-08

申请人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

发明人： Takumi Yanagisawa ,  Yasushi Nishioka ,  Takahiko Machita ,  Satoshi Miura ,  Takayasu Kanaya ,  Kenzo Makino ,  Yoshikazu Sawada ,  Takekazu Yamane ,  Naomichi Degawa ,  Kosuke Tanaka ,  Soji Koide ,  Daisuke Miyauchi

IPC分类号： G11B5/39

CPC分类号： G11B5/3912 ,  B82Y25/00 ,  G01R33/093 ,  H01F10/325 ,  H01F10/3254 ,  H01L43/08

摘要： A thin film magnetic head includes; an MR film that includes a pinned layer of which a magnetization direction is pinned, a free layer of which a magnetization direction varies, and a spacer that is disposed therebetween; a pair of shields that are disposed on both sides sandwiching the MR film in a direction orthogonal to a film surface of the MR film; and an anisotropy providing layer that provides anisotropy to a first shield so that the first shield is magnetized in a desired direction, and that is disposed on an opposite side from the MR film with respect to the first shield. The MR film includes a magnetic coupling layer that is disposed between the first shield and the free layer and that magnetically couples the first shield with the free layer.

摘要翻译： 薄膜磁头包括： 包括磁化方向被钉扎的钉扎层，磁化方向变化的自由层和设置在其间的间隔件的MR膜; 一对屏蔽，其设置在与MR膜的膜表面正交的方向上夹着MR膜的两侧; 以及各向异性提供层，其向第一屏蔽提供各向异性，使得第一屏蔽沿期望的方向被磁化，并且被设置在与MR膜相对于第一屏蔽的相对侧上。 MR膜包括设置在第一屏蔽和自由层之间并且将第一屏蔽与自由层磁耦合的磁耦合层。

公开(公告)号：US08385160B2

公开(公告)日：2013-02-26

申请号：US12837725

申请日：2010-07-16

申请人： Shinji Hara ,  Tsutomu Chou ,  Tetsuya Roppongi ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Shinji Hara ,  Tsutomu Chou ,  Tetsuya Roppongi ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y25/00 ,  G01R33/093 ,  G02B2006/121 ,  G11B5/6088 ,  G11B2005/0021

摘要： A magnetic recording element that faces a recording medium and that executes a magnetic recording while the recording medium is heated, the element including a waveguide that is configured with a core and a cladding, the core, through which laser light propagates, including an enlarged part, which is enlarged at an air bearing surface facing the recording medium; and the cladding surrounding a periphery of the core.

摘要翻译： 一种磁记录元件，其面向记录介质并且在记录介质被加热的同时执行磁记录，所述元件包括配置有芯和包层的波导，激光通过该芯体传播，其包括放大部分 ，其在面向记录介质的空气轴承表面处被扩大; 并且包围围绕芯的周边的包层。

公开(公告)号：US20120188859A1

公开(公告)日：2012-07-26

申请号：US13013025

申请日：2011-01-25

申请人： Shinji HARA ,  Tsutomu Chou ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Shinji HARA ,  Tsutomu Chou ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B13/04 ,  G11B13/08

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic head that includes an air bearing surface facing a recording medium and that performs magnetic recording while heating the recording medium includes: a magnetic recording element including a pole of which one edge part is positioned on the air bearing surface and that generates magnetic flux traveling toward the magnetic recording medium; a waveguide configured with a core through which light propagates and a cladding, at least one part of which extends to the air bearing surface, surrounding the periphery of the core; a plasmon generator that faces a part of the core and that extends to the air bearing surface. The plasmon generator is configured with a first part and a second part that are joined; the first part that is positioned on the air bearing surface side and that is made of a high melting point material, and the second part that is positioned away from the air bearing surface and that is made of a material with a small value ∈″, which is an imaginary component of permittivity.

摘要翻译： 一种热辅助磁头，其包括面向记录介质的空气轴承表面并且在加热记录介质的同时进行磁记录的磁辅助磁头包括：磁记录元件，其包括：一个边缘部分位于空气轴承表面上并产生 向磁记录介质传播的磁通量; 配置有光传播的芯的波导和包围，其至少一部分延伸到空气支承表面，围绕芯的周边; 等离子体发生器，其面向芯部的一部分并且延伸到空气轴承表面。 等离子体发生器配置有连接的第一部分和第二部分; 位于空气轴承面侧并由高熔点材料制成的第一部分和远离空气轴承表面并由具有小值∈“的材料制成的第二部分， 这是介电常数的虚部。

公开(公告)号：US08225489B2

公开(公告)日：2012-07-24

申请号：US12732795

申请日：2010-03-26

申请人： Daisuke Miyauchi ,  Takahiko Machita ,  Keita Kawamori

发明人： Daisuke Miyauchi ,  Takahiko Machita ,  Keita Kawamori

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3945 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3912 ,  G11B5/398 ,  H01F10/3254 ,  H01F10/3263 ,  H01F10/3272 ,  H01F41/308 ,  H01L43/12 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： An MR element includes a first exchange coupling shield layer, an MR stack, and a second exchange coupling shield layer that are arranged in this order from the bottom, and a nonmagnetic layer surrounding the MR stack. The MR stack includes a first free layer, a spacer layer, a second free layer, and a magnetic cap layer that are arranged in this order from the bottom. In the step of forming the MR stack and the nonmagnetic layer, a protection layer is formed on a layered film that will be the MR stack later, and a mask is then formed on the protection layer. Next, the layered film and the protection layer are etched using the mask and then the nonmagnetic layer is formed. After removal of the mask, the protection layer is removed by wet etching.

摘要翻译： MR元件包括从底部依次排列的第一交换耦合屏蔽层，MR堆叠和第二交换耦合屏蔽层以及围绕MR堆叠的非磁性层。 MR堆叠包括从底部依次排列的第一自由层，间隔层，第二自由层和磁性盖层。 在形成MR堆叠和非磁性层的步骤中，在稍后将成为MR堆叠的分层膜上形成保护层，然后在保护层上形成掩模。 接下来，使用掩模蚀刻层状膜和保护层，然后形成非磁性层。 去除掩模后，通过湿蚀刻除去保护层。

公开(公告)号：US08164986B2

公开(公告)日：2012-04-24

申请号：US12471786

申请日：2009-05-26

申请人： Susumu Aoki ,  Daisuke Miyauchi ,  Seiichi Takayama ,  Koji Shimazawa ,  Tetsuya Roppongi

发明人： Susumu Aoki ,  Daisuke Miyauchi ,  Seiichi Takayama ,  Koji Shimazawa ,  Tetsuya Roppongi

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/3116 ,  G11B5/6088 ,  G11B11/10534 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A magnetic recording head capable of a satisfying thermally-assisted magnetic recording without depending on the use of a near-field light generator is provided. The head comprises a waveguide and a main magnetic pole having a main pole tip. Further, at least a portion of the main pole tip is embedded in a groove provided in the upper surface of the waveguide. Further, a second clad layer is provided on the first clad layer and on a rear side from the main pole tip. This configuration of the first and second clad layers suppresses the absorption of the light propagating through the waveguide by the main magnetic pole. Further, the configuration in which at least a portion of the main pole tip is embedded in the groove can cause the distance between the light spot center of the waveguide and the main magnetic pole to be sufficiently small.

摘要翻译： 提供一种能够满足热辅助磁记录而不依赖于近场光发生器的磁记录头。 头部包括具有主极尖端的波导和主磁极。 此外，主极尖的至少一部分嵌入设置在波导的上表面中的槽中。 此外，第二覆盖层设置在第一覆盖层上并且在主极尖端的后侧。 第一和第二包层的这种配置抑制由主磁极吸收通过波导传播的光。 此外，主极尖的至少一部分埋设在槽中的结构可以使波导的光点中心与主磁极之间的距离足够小。

公开(公告)号：US08125858B2

公开(公告)日：2012-02-28

申请号：US12728890

申请日：2010-03-22

申请人： Shinji Hara ,  Tsutomu Chou ,  Kosuke Tanaka ,  Eiji Komura ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Susumu Aoki ,  Takeshi Tsutsumi

发明人： Shinji Hara ,  Tsutomu Chou ,  Kosuke Tanaka ,  Eiji Komura ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Susumu Aoki ,  Takeshi Tsutsumi

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 plasmon exciting part, and has a near-field light generating part located in a medium facing surface. The plasmon exciting part faces an evanescent light generating surface of a waveguide's core with a predetermined distance therebetween. The outer surface of the plasmon generator further includes first and second inclined surfaces that are each connected to the plasmon exciting part. The first and second inclined surfaces increase in distance from each other with increasing distance from the plasmon exciting part. The plasmon generator includes a shape changing portion where the angle of inclination of each of the first and second inclined surfaces with respect to the evanescent light generating surface increases continuously with decreasing distance to the medium facing surface.

摘要翻译： 等离子体发生器具有包括等离子体激元部分的外表面，并且具有位于介质面对表面中的近场光产生部分。 等离子激元激发部分面对波导芯的渐逝光产生表面，其间具有预定的距离。 等离子体发生器的外表面还包括各自连接到等离子体激元部分的第一和第二倾斜表面。 第一和第二倾斜表面随距离等离激子激发部分的距离增加而彼此间距离增加。 等离子体发生器包括形状改变部分，其中第一和第二倾斜表面中的每一个相对于ev逝光产生表面的倾斜角度随着到介质面向表面的距离的减小而连续增加。

公开(公告)号：US07947188B2

公开(公告)日：2011-05-24

申请号：US12318481

申请日：2008-12-30

申请人： Toshiyuki Ayukawa ,  Shinji Hara ,  Daisuke Miyauchi ,  Takahiko Machita ,  Yoshihiro Tsuchiya

发明人： Toshiyuki Ayukawa ,  Shinji Hara ,  Daisuke Miyauchi ,  Takahiko Machita ,  Yoshihiro Tsuchiya

IPC分类号： B44C1/22

CPC分类号： G11B5/3163 ,  G11B5/3929

摘要： A method for manufacturing a thin film magnetic head includes a step for forming an MR layered body; a step for forming a first sacrificial layer made of material removable by wet etching, and subsequently, forming a cap layer on the upper surface of the first sacrificial layer; further, a step for patterning the MR layered body and the cap layer and then filling part of the removed areas of the MR layered body and the cap layer with a bias magnetic layer and the remaining with insulating layers; a step for removing the cap layer by dry etching and, subsequently, removing the first sacrificial layer by wet etching; and a step for forming a second shield layer above the MR layered body and the bias magnetic layer.

摘要翻译： 制造薄膜磁头的方法包括形成MR层叠体的步骤; 用于形成由通过湿蚀刻除去的材料制成的第一牺牲层的步骤，随后在所述第一牺牲层的上表面上形成盖层; 另外，用于对MR层叠体和盖层进行图案化，然后用偏磁层填充MR层状体和盖层的去除区域的一部分，剩余的具有绝缘层的步骤; 通过干蚀刻去除盖层的步骤，随后通过湿法蚀刻去除第一牺牲层; 以及在MR层叠体和偏磁层上形成第二屏蔽层的工序。