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81. 发明申请

US20100172220A1 Near-Field Light Generating Element Comprising Surface Plasmon Antenna And Waveguide With Groove 有权
标题翻译：包括表面等离子体天线和波导的近场光产生元件
公开(公告)号：US20100172220A1
公开(公告)日：2010-07-08
申请号：US12349956
申请日：2009-01-07
申请人： Eiji Komura , Koji Shimazawa
发明人： Eiji Komura , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y10/00 , G11B5/4866 , G11B5/6088 , G11B5/743 , G11B2005/001 , G11B2005/0021
摘要： Provided is a near-field light generating element in which as much amount as possible of waveguide light can be coupled with a plasmon antenna. The element comprises a light waveguide and a plasmon antenna comprising a surface or edge for propagating surface plasmon excited by waveguide light, extending to a near-field light generating end. A groove is formed in a waveguide side surface. And at least a portion of the surface or edge is embedded in the groove or located directly above the groove, being opposed to a wall or bottom surface of the groove with a predetermined distance, so as for waveguide light to be coupled with the plasmon antenna in surface plasmon mode. This configuration enables the surface or edge to be located at the position in which the surface or edge can be coupled with more amount of light, thereby to improve the light use efficiency.
摘要翻译：提供了一种近场光产生元件，其中尽可能多的波导光可以与等离子体激元天线耦合。元件包括光波导和等离子体激元，其包括用于传播由波导光激发的表面等离子体激元的表面或边缘，延伸到近场光产生端。在波导侧面形成有槽。并且所述表面或边缘的至少一部分嵌入在所述凹槽中或者位于所述凹槽的正上方，与所述凹槽的壁或底表面相隔预定距离，以便与所述等离子体天线耦合的波导光在表面等离子体激元模式。这种构造使得表面或边缘能够位于表面或边缘可以与更多量的光耦合的位置，从而提高光的使用效率。

82. 发明申请

US20100149930A1 NEAR-FIELD LIGHT GENERATING ELEMENT COMPRISING SURFACE PLASMON ANTENNA WITH SURFACE OR EDGE OPPOSED TO WAVEGUIDE 有权
标题翻译：包含表面等离子体天线的近场光产生元件与表面或边缘相对的波导
公开(公告)号：US20100149930A1
公开(公告)日：2010-06-17
申请号：US12335943
申请日：2008-12-16
申请人： Eiji Komura , Koji Shimazawa , Daisuke Miyauchi
发明人： Eiji Komura , Koji Shimazawa , Daisuke Miyauchi
IPC分类号： G11B11/00 , G11B5/02
CPC分类号： G11B5/314 , G11B5/4866 , G11B5/6088 , G11B7/1387 , G11B2005/001 , G11B2005/0021
摘要： Provided is a near-field light generating element in which reduced is the propagation loss of excited surface plasmon that propagates to the near-field light generating end. The element comprises: a waveguide through which light for exciting surface plasmon propagates; and a plasmon antenna comprising a near-field light generating end and a propagation surface or edge. The propagation surface or edge extends to the near-field light generating end, and causes surface plasmon excited by the light to propagate thereon. Further, a portion of the side surface on the near-field light generating end side is opposed to the propagation surface or edge with a predetermined distance so as for the light to be coupled with the plasmon antenna in a surface plasmon mode. In this configuration, surface plasmon can propagates without significantly changing its wavenumber, which leads to a less propagation loss, and to an improved light use efficiency.
摘要翻译：提供了一种近场光产生元件，其中传播到近场光产生端的被激发的表面等离子体激元的传播损耗减小。该元件包括：用于激发表面等离子体激元的光传播的波导; 以及包括近场光产生端和传播表面或边缘的等离子体激元天线。传播表面或边缘延伸到近场光产生端，并且使由光激发的表面等离子体激发在其上。此外，近场光产生端侧的侧面的一部分与传播面或边缘以预定距离相对，以便以等离子体激元模式与等离子体激元天线耦合的光。在这种配置中，表面等离子体激元可以传播而不会明显地改变其波数，这导致较少的传播损耗，并提高光的使用效率。

83. 发明授权

US08441895B2 Thermally-assisted magnetic recording head with light detector in element-integration surface 有权
标题翻译：热辅助磁记录头，带元件整合表面的光检测器
公开(公告)号：US08441895B2
公开(公告)日：2013-05-14
申请号：US12622962
申请日：2009-11-20
申请人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
发明人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured to guide a light emitted from the light source to the vicinity of one end of the write head element; and a light detector for monitoring the light-source output, provided in the element-integration surface and comprising a light-receiving surface covering an area directly above at least a portion of the optical system. This light detector with such a light-receiving surface can detect a leakage light emitted from the optical system as a monitoring light. Therefore, feedback adjustment of the light-source output can be realized to stabilize the intensity of light for thermal-assist applied to a magnetic recording medium.
摘要翻译：提供了一种热辅助磁记录头，其中可以根据环境影响和随时间的变化来调节光源输出。头包括：光源; 设置在元件集成表面中的写入头元件; 光学系统，设置在所述元件一体化表面中并且被配置为将从所述光源发射的光引导到所述写入头元件的一端附近; 以及光检测器，用于监测元件整合表面中的光源输出，并包括覆盖光学系统的至少一部分正上方的区域的光接收表面。具有这种光接收表面的光检测器可以检测从光学系统发射的泄漏光作为监测光。因此，可以实现光源输出的反馈调整，以稳定施加到磁记录介质的热辅助的光的强度。

84. 发明申请

US20100238580A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD WITH LIGHT SOURCE ON ELEMENT-INTEGRATION SURFACE 有权
标题翻译：热辅助磁记录头，光源集成表面
公开(公告)号：US20100238580A1
公开(公告)日：2010-09-23
申请号：US12407420
申请日：2009-03-19
申请人： Koji Shimazawa , Eiji Komura
发明人： Koji Shimazawa , Eiji Komura
IPC分类号： 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 with a sufficient power is disposed in the element-integration surface to improve mass-productivity. The head comprises, in an element-integration surface of a substrate: a light source; a waveguide for propagating light from the light source; and a magnetic pole for generating write field. Further, the edge along optical axis of the light source is set to be parallel with or inclined from the edge on the opposed-to-medium surface side of the element-integration surface. In the head, since the light source is disposed in the element-integration surface, the construction of the optical system can be completed in the stage of a wafer process. This construction can be relatively facilitated and simplified; thus, mass-productivity in the head manufacturing can be improved. Further, a light source with a sufficient power (cavity length) can be disposed in the element-integration surface.
摘要翻译：提供一种热辅助磁记录头，其中具有足够功率的光源设置在元件整合表面中以提高批量生产率。头部包括在基板的元件集成表面中：光源; 用于从光源传播光的波导; 以及用于产生写入场的磁极。此外，沿着光源的光轴的边缘被设定为与元件整合表面的相对中介表面侧上的边缘平行或倾斜。在磁头中，由于光源设置在元件集成表面中，所以可以在晶片工艺的阶段完成光学系统的结构。这种结构可以相对便利和简化; 因此，可以提高头部制造中的批量生产率。此外，具有足够功率（空腔长度）的光源可以设置在元件集成表面中。

85. 发明授权

US08424191B2 Method for manufacturing thermally-assisted magnetic recording head by semi-active alignment 有权
标题翻译：半主动对准制造热辅助磁记录头的方法
公开(公告)号：US08424191B2
公开(公告)日：2013-04-23
申请号：US12648079
申请日：2009-12-28
申请人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
发明人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
IPC分类号： G11B11/12
CPC分类号： G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/001 , G11B2005/0021 , Y10T29/49032 , Y10T29/49037 , Y10T29/49055 , Y10T29/49059
摘要： A method for manufacturing a thermally-assisted magnetic recording head is provided, in which joined are: a light source unit that includes a light source having a surface including a light-emission center on the joining surface side of a unit substrate; and a slider that includes an optical system having a light-receiving end surface reaching a back surface opposite to the opposed-to-medium surface. This method utilizes “semi-active alignment” that uses an alignment light, and comprises steps of: causing a light to enter the light source from a surface opposite to the light-emission center; detecting the light that has passed through the light source and is emitted from the light-emission center to align the light-emission center with the light-receiving end surface of the slider; and bonding the light source unit to the slider. This manufacturing method can achieve the alignment with a sufficiently high alignment accuracy in a short processing time.
摘要翻译：提供了一种用于制造热辅助磁记录头的方法，其中连接有：光源单元，其包括在单元基板的接合表面侧上具有包括发光中心的表面的光源; 以及包括光学系统的滑块，所述光学系统具有到达相对于中间表面的后表面的光接收端面。该方法采用使用对准光的“半主动对准”，其包括以下步骤：使光从与发光中心相反的表面进入光源; 检测已经通过光源并从发光中心射出的光，使发光中心与滑块的受光端面对准; 并将光源单元接合到滑块。该制造方法可以在短的处理时间内以足够高的对准精度实现对准。

86. 发明授权

US08243558B2 Thermally assisted magnetic head, head gimbal assembly, and hard disk apparatus 有权
标题翻译：热辅助磁头，磁头万向节组件和硬盘设备
公开(公告)号：US08243558B2
公开(公告)日：2012-08-14
申请号：US12363053
申请日：2009-01-30
申请人： Eiji Komura , Koji Shimazawa
发明人： Eiji Komura , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/102 , G11B2005/0005 , G11B2005/0021
摘要： A thermally assisted magnetic head includes a main magnetic pole for writing and a near-field light generator provided near the main magnetic pole, the near-field light generator having a non-magnetic base metal layer, a non-magnetic upper metal layer, an intermediate insulating layer interposed between the base metal layer and the upper metal layer, and the base metal layer having a V-shaped groove and also the upper metal layer having a projection facing the deepest part in the groove of the base metal layer, in a vertical cross-section parallel to a medium facing surface.
摘要翻译：热辅助磁头包括用于写入的主磁极和设置在主磁极附近的近场光发生器，具有非磁性基底金属层的近场光发生器，非磁性上金属层，介于基底金属层和上部金属层之间的中间绝缘层，以及具有V形槽的基底金属层，以及具有与基底金属层的沟槽中的最深部分相对的突起的上部金属层，垂直横截面平行于面向介质的表面。

87. 发明授权

US08000175B2 Thermally assisted magnetic head having a semiconductor surface-emitting laser 有权
标题翻译：具有半导体表面发射激光器的热辅助磁头
公开(公告)号：US08000175B2
公开(公告)日：2011-08-16
申请号：US12363010
申请日：2009-01-30
申请人： Koji Shimazawa , Eiji Komura , Seiichi Takayama
发明人： Koji Shimazawa , Eiji Komura , Seiichi Takayama
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/02 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A thermally assisted magnetic head includes: a slider having a medium-facing surface; and a surface-emitting semiconductor laser. The slider has: a slider substrate, on which part of the medium-facing surface is formed; and a magnetic head portion, on which another part of the medium-facing surface is formed, and which has a first surface in contact with a head stacking surface of the slider substrate and a second surface opposite the first surface. The magnetic head portion has: a main magnetic pole that generates a write magnetic field from an end face on the side of the medium-facing surface; an optical waveguide core extending along the first surface and having a light exit surface at the medium-facing surface; and a diffraction grating, which is provided in the optical waveguide core or further towards the second surface than the optical waveguide core, and the refractive index of which varies periodically along the direction in which the optical waveguide core extends. The surface-emitting semiconductor laser is provided opposing the second surface so that emission light from the surface-emitting semiconductor laser is incident onto the diffraction grating, and the diffraction grating causes at least part of emission light from the surface-emitting semiconductor laser to be optically coupled to the optical waveguide core.
摘要翻译：热辅助磁头包括：具有中等面向表面的滑块; 和表面发射半导体激光器。滑块具有：形成介质面的一部分的滑块基板; 以及磁头部分，其上形成有介质相对表面的另一部分，并且具有与滑块基板的磁头堆叠表面接触的第一表面和与第一表面相对的第二表面。磁头部具有：主磁极，其从中间面的一侧的端面产生写入磁场; 光波导芯，沿着所述第一表面延伸并且在所述面向中的表面处具有光出射表面; 以及衍射光栅，其设置在光波导芯中或者比光波导芯更靠近第二表面，并且其折射率沿着光波导芯延伸的方向周期性地变化。表面发射半导体激光器被设置为与第二表面相对，使得来自表面发射半导体激光器的发射光入射到衍射光栅上，并且衍射光栅使得来自表面发射半导体激光器的至少一部分发射光为光耦合到光波导芯。

88. 发明申请

US20110122737A1 Thermally-Assisted Magnetic Recording Head with Light Detector in Element-Integration Surface 有权
标题翻译：带元件整合表面的光检测器的热辅助磁记录头
公开(公告)号：US20110122737A1
公开(公告)日：2011-05-26
申请号：US12622962
申请日：2009-11-20
申请人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
发明人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
IPC分类号： G11B11/00 , G11B5/02 , G11B5/48
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured to guide a light emitted from the light source to the vicinity of one end of the write head element; and a light detector for monitoring the light-source output, provided in the element-integration surface and comprising a light-receiving surface covering an area directly above at least a portion of the optical system. This light detector with such a light-receiving surface can detect a leakage light emitted from the optical system as a monitoring light. Therefore, feedback adjustment of the light-source output can be realized to stabilize the intensity of light for thermal-assist applied to a magnetic recording medium.
摘要翻译：提供了一种热辅助磁记录头，其中可以根据环境影响和随时间的变化来调节光源输出。头包括：光源; 设置在元件集成表面中的写入头元件; 光学系统，设置在所述元件一体化表面中并且被配置为将从所述光源发射的光引导到所述写入头元件的一端附近; 以及光检测器，用于监测元件整合表面中的光源输出，并包括覆盖光学系统的至少一部分正上方的区域的光接收表面。具有这种光接收表面的光检测器可以检测从光学系统发射的泄漏光作为监测光。因此，可以实现光源输出的反馈调整，以稳定施加到磁记录介质的热辅助的光的强度。

89. 发明授权

US08107325B2 Near-field light generating element comprising surface plasmon antenna with surface or edge opposed to waveguide 有权
标题翻译：近场光产生元件包括具有与波导相对的表面或边缘的表面等离子体天线
公开(公告)号：US08107325B2
公开(公告)日：2012-01-31
申请号：US12335943
申请日：2008-12-16
申请人： Eiji Komura , Koji Shimazawa , Daisuke Miyauchi
发明人： Eiji Komura , Koji Shimazawa , Daisuke Miyauchi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B5/6088 , G11B7/1387 , G11B2005/001 , G11B2005/0021
摘要： Provided is a near-field light generating element in which reduced is the propagation loss of excited surface plasmon that propagates to the near-field light generating end. The element comprises: a waveguide through which light for exciting surface plasmon propagates; and a plasmon antenna comprising a near-field light generating end and a propagation surface or edge. The propagation surface or edge extends to the near-field light generating end, and causes surface plasmon excited by the light to propagate thereon. Further, a portion of the side surface on the near-field light generating end side is opposed to the propagation surface or edge with a predetermined distance so as for the light to be coupled with the plasmon antenna in a surface plasmon mode. In this configuration, surface plasmon can propagates without significantly changing its wavenumber, which leads to a less propagation loss, and to an improved light use efficiency.
摘要翻译：提供了一种近场光产生元件，其中传播到近场光产生端的被激发的表面等离子体激元的传播损耗减小。该元件包括：用于激发表面等离子体激元的光传播的波导; 以及包括近场光产生端和传播表面或边缘的等离子体激元天线。传播表面或边缘延伸到近场光产生端，并且使由光激发的表面等离子体激发在其上。此外，近场光产生端侧的侧面的一部分与传播面或边缘以预定距离相对，以便以等离子体激元模式与等离子体激元天线耦合的光。在这种配置中，表面等离子体激元可以传播而不会明显地改变其波数，这导致较少的传播损耗，并提高光的使用效率。

90. 发明授权

US08045422B2 Near-field light generating element comprising surface plasmon antenna and waveguide with groove 有权
标题翻译：近场光产生元件包括表面等离子体天线和具有凹槽的波导
公开(公告)号：US08045422B2
公开(公告)日：2011-10-25
申请号：US12349956
申请日：2009-01-07
申请人： Eiji Komura , Koji Shimazawa
发明人： Eiji Komura , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y10/00 , G11B5/4866 , G11B5/6088 , G11B5/743 , G11B2005/001 , G11B2005/0021
摘要： Provided is a near-field light generating element in which as much amount as possible of waveguide light can be coupled with a plasmon antenna. The element comprises a light waveguide and a plasmon antenna comprising a surface or edge for propagating surface plasmon excited by waveguide light, extending to a near-field light generating end. A groove is formed in a waveguide side surface. And at least a portion of the surface or edge is embedded in the groove or located directly above the groove, being opposed to a wall or bottom surface of the groove with a predetermined distance, so as for waveguide light to be coupled with the plasmon antenna in surface plasmon mode. This configuration enables the surface or edge to be located at the position in which the surface or edge can be coupled with more amount of light, thereby to improve the light use efficiency.
摘要翻译：提供了一种近场光产生元件，其中尽可能多的波导光可以与等离子体激元天线耦合。元件包括光波导和等离子体激元，其包括用于传播由波导光激发的表面等离子体激元的表面或边缘，延伸到近场光产生端。在波导侧面形成有槽。并且所述表面或边缘的至少一部分嵌入在所述凹槽中或者位于所述凹槽的正上方，与所述凹槽的壁或底表面相隔预定距离，以便与所述等离子体天线耦合的波导光在表面等离子体激元模式。这种构造使得表面或边缘能够位于表面或边缘可以与更多量的光耦合的位置，从而提高光的使用效率。

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