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1. 发明申请

US20120188859A1 THERMALLY-ASSISTED MAGNETIC HEAD 有权
标题翻译：热辅助磁头
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。

2. 发明授权

US08125858B2 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：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。

3. 发明授权

US08305849B2 Thermally-assisted magnetic head 有权
标题翻译：热辅助磁头
公开(公告)号：US08305849B2
公开(公告)日：2012-11-06
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： G11B11/00
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。

4. 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。

5. 发明授权

US08089831B2 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：US08089831B2
公开(公告)日：2012-01-03
申请号：US12710129
申请日：2010-02-22
申请人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Daisuke Miyauchi
发明人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Daisuke Miyauchi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A plasmon generator has an outer surface including a surface plasmon exciting surface, and has a near-field light generating part located in a medium facing surface. The surface plasmon exciting surface is a flat surface that faces an evanescent light generating surface of a waveguide with a predetermined distance therebetween. The surface plasmon exciting surface includes a width changing portion. The width of the width changing portion in a direction parallel to the medium facing surface and the evanescent light generating surface decreases with decreasing distance to the medium facing surface. A magnetic pole is located at such a position that the plasmon generator is interposed between the magnetic pole and the waveguide. The outer surface of the plasmon generator includes a pole contact surface that is in contact with the magnetic pole.
摘要翻译：等离子体发生器具有包括表面等离子体激元表面的外表面，并且具有位于介质面对表面中的近场光产生部。表面等离子体激元表面是面对波导的ev逝光产生表面的平坦表面，其间具有预定的距离。表面等离子体激元表面包括宽度改变部分。宽度改变部分在与面向介质的表面和ev逝光产生表面平行的方向上的宽度随着与面向介质的表面的距离的减小而减小。磁极位于这样的位置，等离子体发生器插入在磁极和波导之间。等离子体发生器的外表面包括与磁极接触的极接触表面。

6. 发明授权

US08462593B1 Thermal-assisted magnetic recording head having dielectric waveguide, metal waveguide and near-field light generating element 有权
标题翻译：具有介质波导，金属波导和近场光产生元件的热辅助磁记录头
公开(公告)号：US08462593B1
公开(公告)日：2013-06-11
申请号：US13367767
申请日：2012-02-07
申请人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Kosuke Tanaka
发明人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A magnetic head includes a dielectric waveguide to propagate propagation light; a metal waveguide facing the dielectric waveguide, coupling to the propagation light propagating through the dielectric waveguide in a surface plasmon mode, generating first surface plasmon with larger wavenumber than that of the propagation light, and propagating the first surface plasmon; a near-field light generating element facing the metal waveguide and extending to ABS, coupling to the first surface plasmon propagating on the metal waveguide in a surface plasmon mode, generating second surface plasmon with wavenumber larger than that of the first surface plasmon, propagating the second surface plasmon to an end part on the ABS side, and generating near-field light at the end part on the ABS side; and a recording magnetic pole provided in the vicinity of the near-field light generating element and having an end part positioned on the ABS.
摘要翻译：磁头包括传播传播光的电介质波导; 面向电介质波导的金属波导，以表面等离子体模式耦合到通过电介质波导传播的传播光，产生波数比传播光波数大的第一表面等离子体，并传播第一表面等离子体; 面向金属波导并延伸到ABS的近场光产生元件，以表面等离子体模式耦合到在金属波导上传播的第一表面等离子体激元，产生波数大于第一表面等离子体波的第二表面等离子体，传播第二表面等离子体激元到ABS侧的端部，并且在ABS侧的端部产生近场光; 以及设置在近场光产生元件附近并具有位于ABS上的端部的记录磁极。

7. 发明授权

US08363515B1 Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly, and magnetic disk unit 有权
标题翻译：热辅助磁记录头，头架万向节组件，头臂组件和磁盘单元
公开(公告)号：US08363515B1
公开(公告)日：2013-01-29
申请号：US13397041
申请日：2012-02-15
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide propagating light in a first direction, the first direction intersecting with an air bearing surface; a plasmon generator having a base and a projection, the base having a surface, and the projection having a top, standing partially on the surface of the base and extending in the first direction. The plasmon generator has a first portion and a second portion, and the first portion and the second portion are provided in this order from the air bearing surface in a direction away from the air bearing surface. Herein, the top of the projection and the surface of the base in the first portion define a first step, and the top of the projection and the surface of the base in the second portion define a second step. The first step is larger than the second step.
摘要翻译：热辅助磁记录头包括：磁极; 波导在第一方向传播光，所述第一方向与空气轴承表面相交; 具有基部和突起的等离子体发生器，所述基部具有表面，并且所述突起具有顶部，部分地位于所述基部的所述表面上并沿所述第一方向延伸。等离子体发生器具有第一部分和第二部分，并且第一部分和第二部分沿着远离空气支承表面的方向从空气轴承表面依次设置。这里，突起的顶部和第一部分中的基部的表面限定第一步骤，并且突起的顶部和第二部分中的基部的表面限定第二步骤。第一步大于第二步。

8. 发明授权

US08547805B1 Thermally-assisted magnetic recording head having temperature sensor embedded on dielectric waveguide 有权
标题翻译：具有嵌入在介质波导上的温度传感器的热辅助磁记录头
公开(公告)号：US08547805B1
公开(公告)日：2013-10-01
申请号：US13432245
申请日：2012-03-28
申请人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Kosuke Tanaka , Ryo Hosoi
发明人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Shinji Hara , Kosuke Tanaka , Ryo Hosoi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/607 , G11B2005/0021
摘要： A thermal assisted magnetic recording head includes a dielectric waveguide that is configured to propagate propagation light a metal waveguide that is provided facing the dielectric waveguide and that couples to the propagation light propagating through the dielectric waveguide in a surface plasmon mode, thereby generating and propagating surface plasmon, a near-field light generator that is exposed on an air bearing surface facing a magnetic recording medium either at an end part of the metal waveguide or at a position facing the end part of the metal waveguide, and that generates near-field light from the surface plasmon, a magnetic pole for magnetic recording that is exposed on the air bearing surface, and a temperature sensor that is arranged inside the dielectric waveguide.
摘要翻译：热辅助磁记录头包括电介质波导，其被配置为传播传播光，所述介质波导设置成面对介质波导并且以表面等离子体模式耦合到传播通过介质波导的传播光，从而产生和传播表面等离子体激元，近场光发生器，其在面向金属波导的端部的面向磁记录介质的空气轴承表面上或面对金属波导的端部的位置处暴露，并且产生近场光从表面等离子体激元，暴露在空气轴承表面上的用于磁记录的磁极，以及布置在电介质波导内部的温度传感器。

9. 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。

10. 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。

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