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81. 发明授权

US08077558B1 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：US08077558B1
公开(公告)日：2011-12-13
申请号：US12785897
申请日：2010-05-24
申请人： Takeshi Tsutsumi , Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Takahiko Izawa , Tsutomu Chou
发明人： Takeshi Tsutsumi , Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Takahiko Izawa , Tsutomu Chou
IPC分类号： G11B11/00
CPC分类号： G11B5/3163 , B82Y20/00 , G02B5/008 , G02B6/1226 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/6088 , G11B7/1384 , G11B7/1387 , G11B2005/0021 , Y10T29/49032
摘要： A plasmon generator has an outer surface including a plasmon exciting part that faces an evanescent light generating surface of a waveguide. The outer surface further includes first and second inclined surfaces that increase in distance from each other with increasing distance from the plasmon exciting part, and a front end face. The front end face has first and second portions that are connected to each other into a V-shape. The first portion includes a first side lying at an end of the first inclined surface. The second portion includes a second side lying at an end of the second inclined surface. An angle formed between a lower part of the first side and a lower part of the second side is smaller than that formed between an upper part of the first side and an upper part of the second side.
摘要翻译：等离子体发生器具有外表面，其包括面向波导的ev逝光产生表面的等离子体激元部分。外表面还包括第一和第二倾斜表面，该第一和第二倾斜表面随距距等离子体激元部分的距离增加而彼此间隔开，并且前端面。前端面具有彼此连接成V形的第一和第二部分。第一部分包括位于第一倾斜表面的端部的第一侧。第二部分包括位于第二倾斜表面的端部的第二侧。形成在第一侧的下部和第二侧的下部之间的角度小于在第一侧的上部和第二侧的上部之间形成的角度。

82. 发明申请

US20110228420A1 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：US20110228420A1
公开(公告)日：2011-09-22
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： 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 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。

83. 发明授权

US08023230B2 Magnetoresistive element including a pair of ferromagnetic 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铁磁层
公开(公告)号：US08023230B2
公开(公告)日：2011-09-20
申请号：US12289401
申请日：2008-10-27
申请人： Takahiko Machita , Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Koji Shimazawa
发明人： Takahiko Machita , Daisuke Miyauchi , Yoshihiro Tsuchiya , Tsutomu Chou , Shinji Hara , Koji Shimazawa
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3912 , G11B2005/3996
摘要： A magnetoresistive element includes a pair of shield portions, and an MR stack and a bias magnetic field applying layer that are disposed between the pair of shield portions. The shield portions respectively include single magnetic domain portions. The MR stack includes a pair of ferromagnetic layers magnetically coupled to the pair of single magnetic domain portions, and a spacer layer disposed between the pair of ferromagnetic layers. The MR stack has a front end face, a rear end face and two side surfaces. The magnetoresistive element further includes two flux guide layers disposed between the pair of single magnetic domain portions and respectively adjacent to the two side surfaces of the MR stack. Each of the two flux guide layers has a front end face and a rear end face. The bias magnetic field applying layer has a front end face that faces the rear end face of the MR stack and the respective rear end faces of the two flux guide layers.
摘要翻译：磁阻元件包括一对屏蔽部分，以及设置在该对屏蔽部分之间的MR堆叠和偏置磁场施加层。屏蔽部分别包括单个磁畴部分。 MR堆叠包括磁耦合到该对单个磁畴部分的一对铁磁层，以及设置在该对铁磁层之间的间隔层。 MR堆叠具有前端面，后端面和两个侧面。磁阻元件还包括设置在一对单磁畴部分之间并且分别邻近MR堆叠的两个侧表面的两个磁通引导层。两个磁通导向层中的每一个具有前端面和后端面。偏置磁场施加层具有面向MR堆叠的后端面的前端面和两个导流层的各个后端面。

84. 发明申请

US20110222190A1 TEMPERATURE ASSISTED MAGNETIC RECORDING ELEMENT HAVING GROUNDED NEAR FIELD LIGHT GENERATOR 有权
标题翻译：具有接地的近场磁光记录元件的温度辅助记录元件
公开(公告)号：US20110222190A1
公开(公告)日：2011-09-15
申请号：US12722742
申请日：2010-03-12
申请人： Shinji Hara , Tsutomu Chou , Yoshihiro Tsuchiya
发明人： Shinji Hara , Tsutomu Chou , Yoshihiro Tsuchiya
IPC分类号： G11B5/60 , G11B5/127
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/6005 , G11B5/6088 , G11B2005/0021
摘要： A magnetic recording element has a substrate, a main pole for recording that includes an edge part positioned on an air bearing surface (ABS), a waveguide through which a laser light propagates, and a plasmon generator. The plasmon generator is positioned away from the substrate and extends to the ABS as facing a part of the waveguide. The plasmon generator has a propagation edge extending in a longitudinal direction. The propagation edge has an overlapping part overlapping the waveguide in the longitudinal direction, and a near field light generator positioned on the ABS and located in the vicinity of the edge part of the recording magnetic pole. The overlapping part of the propagation edge is coupled with the laser light propagating through the waveguide in a surface plasmon mode so that a surface plasmon is generated. The propagation edge propagates the surface plasmon generated in the overlapping part to the near field light generator. The magnetic recording element further has a grounding element electrically connecting the plasmon generator and the substrate.
摘要翻译：磁记录元件具有基板，用于记录的主极，其包括位于空气轴承表面（ABS）上的边缘部分，激光传播的波导和等离子体激元发生器。等离子体发生器远离基板定位，并且面向波导的一部分延伸到ABS。等离子体发生器具有沿纵向方向延伸的传播边缘。传播边缘具有在纵向上与波导重叠的重叠部分，以及位于ABS上且位于记录磁极的边缘部分附近的近场光发生器。传播边缘的重叠部分与以表面等离子体模式传播通过波导的激光耦合，从而产生表面等离子体激元。传播边缘将在重叠部分中产生的表面等离子体激元传播到近场光发生器。磁记录元件还具有电连接等离子体发生器和基板的接地元件。

85. 发明申请

US20110058272A1 Thermally-Assisted Magnetic Recording Head Comprising Near-Field Light Generator 有权
标题翻译：包括近场光发生器的热辅助磁记录头
公开(公告)号：US20110058272A1
公开(公告)日：2011-03-10
申请号：US12557078
申请日：2009-09-10
申请人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
发明人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head capable of setting the near-field light (NFL-) emission point to be sufficiently close to the write-field-generating portion. The head comprises a magnetic pole, a waveguide propagating light, and a NFL-generator coupled with the light in surface plasmon mode. The NFL-generator comprises a propagation edge extending to the NFL-generating end surface, at least a portion of the propagation edge being opposed to the waveguide with a distance, and the magnetic pole has a surface contact with a surface portion of the NFL-generator including no propagation edge. Therefore, the distance between the magnetic-pole end surface and the NFL-generating end surface becomes zero. The propagation edge is not contacted with the magnetic pole. Accordingly, the surface plasmon can propagate along on the propagation edge without being absorbed by the pole. Thus, the NFL-emission point is ensured to be at the end point of the propagation edge.
摘要翻译：提供了一种能够将近场光（NFL-）发射点设定为足够靠近写入场产生部分的热辅助磁记录头。磁头包括磁极，波导传播光和与表面等离子体激发光模式耦合的NFL发生器。 NFL发生器包括延伸到NFL生成端面的传播边缘，传播边缘的至少一部分与波导相距一定距离，并且磁极与NFL-发生端面的表面部分具有表面接触，发生器不包括传播边。因此，磁极端面与产生NFL的端面之间的距离为零。传播边缘不与磁极接触。因此，表面等离子体激元可以沿着传播边缘传播而不被极吸收。因此，确保NFL发射点处于传播边缘的终点。

86. 发明申请

US20110026377A1 Thermally-Assisted Magnetic Recording Head Comprising Light Source with Photonic-Band Layer 有权
标题翻译：包含光子带光层的热辅助磁记录头
公开(公告)号：US20110026377A1
公开(公告)日：2011-02-03
申请号：US12512249
申请日：2009-07-30
申请人： Koji Shimazawa , Seiichi Takayama , Tsutomu Chou , Eiji Komura
发明人： Koji Shimazawa , Seiichi Takayama , Tsutomu Chou , Eiji Komura
IPC分类号： G11B11/00 , G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which a light source having sufficiently high output power for performing thermal-assist is disposed in the element-integration surface of the substrate to achieve improved mass-productivity. The head includes: a light source having a multilayered structure including a photonic-band layer and having a light-emitting surface opposed to the element-integration surface; a diffraction optical element that converges the emitted light; a light-path changer that changes the direction of the converged light; a waveguide that propagates the direction-changed light toward the opposed-to-medium surface; and a magnetic pole that generates write field. The surface-emitting type light source includes a photonic-band layer having a periodic structure in which a light from an active region resonates, and thus emits laser light on a quite different principle from a VCSEL. Therefore, the light source can be disposed in the element-integration surface, even though having sufficiently high output power.
摘要翻译：提供了一种热辅助磁记录头，其中具有足够高输出功率的用于进行热辅助的光源设置在基板的元件集成表面中，以实现提高的批量生产率。头包括：具有包括光子带层并且具有与元件一体化表面相对的发光表面的多层结构的光源; 会聚发射光的衍射光学元件; 改变会聚光的方向的光路改变器; 波导，其将所述方向改变的光传播到所述相对中介表面; 以及产生写入场的磁极。表面发射型光源包括具有周期性结构的光子带层，其中来自有源区的光谐振，从而以与VCSEL完全不同的原理发射激光。因此，即使具有足够高的输出功率，也可以将光源配置在元件一体化表面。

87. 发明申请

US20100103563A1 Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers 审中-公开
标题翻译：磁阻元件包括耦合到一对屏蔽层的一对铁磁层
公开(公告)号：US20100103563A1
公开(公告)日：2010-04-29
申请号：US12289517
申请日：2008-10-29
申请人： Takahiko Machita , Daisuke Miyauchi , Tsutomu Chou , Toshiyuki Ayukawa
发明人： Takahiko Machita , Daisuke Miyauchi , Tsutomu Chou , Toshiyuki Ayukawa
IPC分类号： G11B5/33
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3912 , G11B2005/3996
摘要： A magnetoresistive element includes first and second shield portions and an MR stack. Each of the first and second shield portions includes a shield bias magnetic field applying layer, and a closed-magnetic-path-forming portion that forms a closed magnetic path in conjunction of the shield bias magnetic field applying layer. The closed-magnetic-path-forming portion includes a single magnetic domain portion. The MR stack is sandwiched between the respective single magnetic domain portions of the first and second shield portions. The closed-magnetic-path-forming portion includes a magnetic-path-expanding portion that forms a magnetic path, the magnetic path being a portion of the closed magnetic path and located between the shield bias magnetic field applying layer and the single magnetic domain portion. The magnetic-path-expanding portion has two end portions located at both ends of the magnetic path, and a middle portion located between the two end portions. A cross section of the magnetic path at the middle portion is greater in width than a cross section of the magnetic path at each of the two end portions.
摘要翻译：磁阻元件包括第一和第二屏蔽部分和MR堆叠。第一和第二屏蔽部分中的每一个包括屏蔽偏置磁场施加层和闭合磁路形成部分，其结合屏蔽偏置磁场施加层形成闭合磁路。封闭磁路形成部分包括单个磁畴部分。 MR堆叠被夹在第一和第二屏蔽部分的相应单个磁畴部分之间。闭磁路形成部分包括形成磁路的磁路扩展部分，磁路是封闭磁路的一部分，位于屏蔽偏置磁场施加层和单磁畴部分之间。磁路扩展部分具有位于磁路两端的两个端部和位于两个端部之间的中间部分。在中间部分处的磁路的横截面的宽度大于在两个端部中的每一个处的磁路的横截面。

88. 发明申请

US20100097722A1 MAGNETORESISTIVE DEVICE OF THE CPP TYPE, AND MAGNETIC DISK SYSTEM 有权
标题翻译： CPP类型的磁性装置和磁盘系统
公开(公告)号：US20100097722A1
公开(公告)日：2010-04-22
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： G11B5/48 , 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，该氧化锌掺杂有由至少一种选自以下的金属元素所赋予的掺杂剂：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。

89. 发明申请

US20100039734A1 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：US20100039734A1
公开(公告)日：2010-02-18
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： G11B5/33
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 exchange coupling magnetic field application layers and first and second antiferromagnetic layers. An exchange coupling intensity relating to an antiferromagnetic coupling between the second exchange coupling magnetic field application 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交换耦合磁场施加层以及第一和第二反铁磁层。与第二交换耦合磁场施加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的上屏蔽层侧端面的投影面积层压体到膜表面的正交方向。

90. 发明申请

US20090310244A1 THIN-FILM MAGNETIC HEAD FOR MICROWAVE ASSIST AND MICROWAVE-ASSISTED MAGNETIC RECORDING METHOD 审中-公开
标题翻译：用于微波辅助的薄膜磁头和微波辅助磁记录方法
公开(公告)号：US20090310244A1
公开(公告)日：2009-12-17
申请号：US12140670
申请日：2008-06-17
申请人： Koji Shimazawa , Tsutomu Chou , Yoshihiro Tsuchiya
发明人： Koji Shimazawa , Tsutomu Chou , Yoshihiro Tsuchiya
IPC分类号： G11B21/02 , G11B5/127 , G11B5/48
CPC分类号： G11B5/314 , G11B2005/0024
摘要： Provided is a thin-film magnetic head that can stably generate electromagnetic field with a desired frequency, even under the existence of significantly strong write field with frequently reversed direction. The head comprises an electromagnetic-field generating element between the first and second magnetic poles. The electromagnetic-field generating element comprises a spin-wave excitation layer provided adjacent to the first magnetic pole and having a magnetization with its direction varied according to external magnetic fields, for generating an high frequency electromagnetic field by an excitation of spin wave. And a magnetization of the spin-wave excitation layer is biased in a direction substantially perpendicular to its layer surface by a portion of magnetic field generated from the first magnetic pole, and pin-wave excitation current flows in the electromagnetic-field generating element in a direction from the second pole to the first pole.
摘要翻译：本发明提供一种薄膜磁头，即使存在具有频繁反转方向的强大写入场，也能够稳定地产生期望频率的电磁场。头部包括在第一和第二磁极之间的电磁场产生元件。电磁场产生元件包括与第一磁极相邻设置并具有根据外部磁场而变化的磁化的自旋波激励层，用于通过自旋波的激发产生高频电磁场。并且自旋波激发层的磁化通过从第一磁极产生的磁场的一部分在基本上垂直于其层表面的方向上偏置，并且针波激励电流在电磁场产生元件中流动方向从第二极到第一极。

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