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1. 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。

2. 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。

3. 发明授权

US08427927B1 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：US08427927B1
公开(公告)日：2013-04-23
申请号：US13370982
申请日：2012-02-10
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide allowing a transverse-electric (TE) wave oscillating in a cross-track direction to propagate toward an air bearing surface; and a plasmon generator having a tip portion near the air bearing surface, the tip portion being provided to overlap, in a down-track direction, with both the magnetic pole and the waveguide, and having a quadrangular cross-section substantially parallel to the air bearing surface.
摘要翻译：热辅助磁记录头包括：磁极; 允许在横向轨道方向上振荡的横向电（TE）波向空气轴承表面传播的波导; 以及等离子体发生器，其具有靠近所述空气支承表面的尖端部分，所述尖端部分被设置为沿着磁道和所述波导两者的向下轨道方向重叠，并且具有基本上平行于所述空气的四边形横截面承载面。

4. 发明授权

US08654617B2 Thermally-assisted magnetic recording head with optically isolating waveguide, head gimbal assembly, head arm assembly, magnetic disk unit, and light transmission unit 有权
标题翻译：热辅助磁记录头，具有光学隔离波导，头万向架组件，头臂组件，磁盘单元和光传输单元
公开(公告)号：US08654617B2
公开(公告)日：2014-02-18
申请号：US13426142
申请日：2012-03-21
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Shinji Hara , Ryo Hosoi , Nobuyuki Mori , Yasutoshi Fujita , Hideki Tanzawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Shinji Hara , Ryo Hosoi , Nobuyuki Mori , Yasutoshi Fujita , Hideki Tanzawa
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G02B6/4208 , G11B5/105 , G11B5/1278 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.
摘要翻译：热辅助磁记录头包括：具有发射表面的激光光源，所述发射表面允许从其发射激光; 具有芯和包层的波导，所述芯允许从激光源发射的激光传播通过其中;以及围绕芯的包层; 磁极和等离子体发生器。芯和包层中的每一个具有面向发射表面的端表面，并且包层的端表面抑制激光返回到激光光源。

5. 发明授权

US08537645B1 Near field light generating element, thermally assisted magnetic head, thermally assisted magnetic head device and thermally assisted magnetic recording/reproducing apparatus 有权
标题翻译：近场光产生元件，热辅助磁头，热辅助磁头装置和热辅助磁记录/重放装置
公开(公告)号：US08537645B1
公开(公告)日：2013-09-17
申请号：US13530829
申请日：2012-06-22
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/6088 , G11B2005/0021
摘要： A near-field light generating element includes a plasmon generator, and the plasmon generator has a base plate and a protrusion. The protrusion protrudes from one side of the base plate, wherein when H represents a height direction of the protrusion from the one side and W represents a width direction perpendicular to the height direction (H), a section taken along a W-H plane is of a rectangular shape whose opposite corners in the height direction (H) are rounded.
摘要翻译：近场光产生元件包括等离子体发生器，等离子体发生器具有基板和突起。突起从基板的一侧突出，其中当H表示突起从一侧的高度方向，W表示与高度方向（H）垂直的宽度方向时，沿WH平面截取的截面为在高度方向（H）上的相对角被倒圆的矩形形状。

6. 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。

7. 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。

8. 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。

9. 发明授权

US08270261B2 Thermally-assisted magnetic recording head comprising waveguide with inverted-trapezoidal shape 有权
标题翻译：热辅助磁记录头包括具有倒梯形形状的波导
公开(公告)号：US08270261B2
公开(公告)日：2012-09-18
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。

10. 发明申请

US20120117791A1 METHOD FOR MANUFACTURING A THERMALLY-ASSISTED MAGNETIC HEAD 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US20120117791A1
公开(公告)日：2012-05-17
申请号：US12947091
申请日：2010-11-16
申请人： Shinji HARA , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
发明人： Shinji HARA , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G02B6/4202 , G11B5/105 , G11B5/3116 , G11B5/6088 , G11B2005/0021 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： In a method for manufacturing a thermally-assisted magnetic head that includes a slider and an LD unit, the slider including an air bearing surface (ABS) that faces a recording medium and including a waveguide with a core for light propagation that extends from a light entering surface, which is different from the ABS, to the ABS, the LD unit being attached to the light entering surface of the slider, and the thermally-assisted magnetic head performing magnetic recording while heating the recording medium with near-field light that is excited from linearly polarized laser light, the LD unit is disposed in a position facing the light entering surface of the slider, a photo detector is disposed in a position facing the ABS of the slider, and a polarizer transmitting only light having a polarization component that is orthogonal to a polarization direction of the linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light is enabled to enter into the core from the light entering surface of the slider. Light radiated from the ABS is enabled to enter into the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects light that is transmitted through the polarizer.
摘要翻译：在制造包括滑块和LD单元的热辅助磁头的方法中，滑块包括面向记录介质的空气轴承表面（ABS），该空气轴承表面包括具有从光线延伸的光传播用核心的波导进入与ABS不同的表面，将LD单元附着到滑块的光进入表面，并且热辅助磁头在用近场光加热记录介质的同时进行磁记录从线偏振激光激发，LD单元被设置在面向滑块的光进入表面的位置，光电检测器设置在面向滑块的ABS的位置，偏振器仅透射具有偏振分量的光，与线偏振激光的偏振方向垂直的方式设置在ABS和光电检测器之间。 LD单元的LD被激活，并且线偏振激光能够从滑块的光进入表面进入芯中。从ABS辐射的光能够进入偏振器，并且当光电检测器检测到透射通过偏振器的光时，执行滑块和LD单元的对准。

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