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1. 发明申请

US20100103553A1 SURFACE PLASMON ANTENNA WITH PROPAGATION EDGE AND NEAR-FIELD LIGHT GENERATING ELEMENT 有权
标题翻译：具有传播边缘和近场光生成元件的表面等离子体天线
公开(公告)号：US20100103553A1
公开(公告)日：2010-04-29
申请号：US12260639
申请日：2008-10-29
申请人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B5/02 , G21G4/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.
摘要翻译：提供了一种表面等离子体激元天线，其可以被设置为使得发射近场光的等离子体激元天线的端面上的发射位置足够靠近磁极的端部。表面等离子体激元天线包括具有用于与表面等离子体激元模式的光耦合的部分的边缘。该边缘用于传播由光激发的表面等离子体激元，并从该部分延伸到发射近场光的近场光产生端面。传播表面等离子体激元的边缘是非常窄的传播区域。因此，通过在等离子体激元天线的制造中通过研磨处理的抛光面的近场光产生端面可以形成为非常小的形状，并且还可以将表面等离子体激元传播到可靠地到达端面。

2. 发明授权

US08116173B2 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US08116173B2
公开(公告)日：2012-02-14
申请号：US12458955
申请日：2009-07-28
申请人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.
摘要翻译：热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。滑块具有覆盖波导的波导和外涂层。激光二极管具有包括用于发射激光的发射部分和底面的发射端面。激光二极管被布置成使得底表面面向滑块的顶表面。波导具有与激光二极管的发射部分相对的入射端面。外涂层具有面向激光二极管的发射端面的端面。从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近激光二极管的发射端面。

3. 发明申请

US20110026379A1 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US20110026379A1
公开(公告)日：2011-02-03
申请号：US12458955
申请日：2009-07-28
申请人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.
摘要翻译：热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。该滑块具有覆盖波导的波导和外涂层。激光二极管具有包括用于发射激光的发射部分和底面的发射端面。激光二极管被布置成使得底表面面向滑块的顶表面。波导具有与激光二极管的发射部分相对的入射端面。外涂层具有面向激光二极管的发射端面的端面。从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近激光二极管的发射端面。

4. 发明授权

US08000178B2 Near-field light generating element utilizing surface plasmon 有权
标题翻译：利用表面等离子体激元的近场光产生元件
公开(公告)号：US08000178B2
公开(公告)日：2011-08-16
申请号：US12260639
申请日：2008-10-29
申请人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.
摘要翻译：提供了一种表面等离子体激元天线，其可以被设置为使得发射近场光的等离子体激元天线的端面上的发射位置足够靠近磁极的端部。表面等离子体激元天线包括具有用于与表面等离子体激元模式的光耦合的部分的边缘。该边缘用于传播由光激发的表面等离子体激元，并从该部分延伸到发射近场光的近场光产生端面。传播表面等离子体激元的边缘是非常窄的传播区域。因此，通过在等离子体激元天线的制造中通过研磨处理的抛光面的近场光产生端面可以形成为非常小的形状，并且还可以将表面等离子体激元传播到可靠地到达端面。

5. 发明授权

US07855937B2 Near-field light generating element and heat-assisted magnetic recording head utilizing surface plasmon mode 有权
标题翻译：近场光产生元件和利用表面等离激元模式的热辅助磁记录头
公开(公告)号：US07855937B2
公开(公告)日：2010-12-21
申请号：US12205484
申请日：2008-09-05
申请人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Eiji Komura , Yasuhiro Ito , Seiichi Takayama , Satoshi Tomikawa , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B11/10536 , G11B11/1058 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generating element capable of avoiding excessive temperature rise, which comprises a waveguide and a near-field light generating layer. The layer comprises: a propagation surface on which surface plasmon excited by the light propagates; and a near-field light generating end at which near-field light is generated. The end is one end of the propagation surface. And a portion of the side surface of the waveguide is opposed to a portion of the propagation surface of the near-field light generating layer with a predetermined spacing so that the light propagating through the waveguide is coupled with the near-field light generating layer in a surface plasmon mode. The near-field light generating layer is preferably tapered toward the near-field light generating end.
摘要翻译：本发明提供能够避免温度过高的近场光发生元件，其包括波导管和近场光产生层。该层包括：由光激发的表面等离子体激发的传播表面; 以及产生近场光的近场光产生端。最后是传播表面的一端。并且波导的侧面的一部分与近场光产生层的传播表面的一部分以预定的间隔相对，使得通过波导传播的光与近场光产生层耦合表面等离子体激元模式。近场光产生层优选地朝向近场光产生端逐渐变细。

6. 发明授权

US07835102B2 Heat assisted magnetic recording head comprising plasmon antenna with flat surfaces opposed to medium 有权
标题翻译：热辅助磁记录头包括具有与介质相对的平坦表面的等离子体天线
公开(公告)号：US07835102B2
公开(公告)日：2010-11-16
申请号：US12239141
申请日：2008-09-26
申请人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
发明人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3116 , G11B7/122 , G11B7/1387 , G11B11/10536 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a plasmon antenna in which a near-field light having a sufficient intensity is generated only in a desired location. The plasmon antenna comprises an end surface on a side where a near-field light is generated; the end surface is flat and has a shape with at least three vertexes or rounded corners; and an end surface of the plasmon antenna which is opposite to the flat end surface and receives light, is inclined with respect to the flat end surface so as to become closer to the flat end surface toward one of the at least three vertexes or rounded corners. When the light-receiving end surface of the plasmon antenna is irradiated with the light, a near-field light having a sufficient intensity can be generated at only the vertex or rounded corner toward which the entire plasmon antenna becomes thinner.
摘要翻译：提供了一种等离子体激元天线，其中仅在期望的位置产生具有足够强度的近场光。等离子体激元天线包括在产生近场光的一侧上的端面; 端面平坦，具有至少三个顶点或圆角的形状; 以及等离子体激元天线的与平坦端面相对并且接收光的端面相对于平坦端面倾斜，以朝向至少三个顶点或圆角中的一个更接近平坦端面。当等离子体激元的光接收端面用光照射时，只能在整个等离子体天线变薄的顶点或圆角处产生具有足够强度的近场光。

7. 发明申请

US20100079895A1 PLASMON ANTENNA AND HEAT-ASSISTED MAGNETIC RECORDING HEAD 有权
标题翻译： PLASMON天线和热辅助磁记录头
公开(公告)号：US20100079895A1
公开(公告)日：2010-04-01
申请号：US12239141
申请日：2008-09-26
申请人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
发明人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
IPC分类号： G11B5/02 , G21G4/00 , G11B5/48
CPC分类号： G11B5/314 , G11B5/3116 , G11B7/122 , G11B7/1387 , G11B11/10536 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a plasmon antenna in which a near-field light having a sufficient intensity is generated only in a desired location. The plasmon antenna comprises an end surface on a side where a near-field light is generated; the end surface is flat and has a shape with at least three vertexes or rounded corners; and an end surface of the plasmon antenna which is opposite to the flat end surface and receives light, is inclined with respect to the flat end surface so as to become closer to the flat end surface toward one of the at least three vertexes or rounded corners. When the light-receiving end surface of the plasmon antenna is irradiated with the light, a near-field light having a sufficient intensity can be generated at only the vertex or rounded corner toward which the entire plasmon antenna becomes thinner.
摘要翻译：提供了一种等离子体激元天线，其中仅在期望的位置产生具有足够强度的近场光。等离子体激元天线包括在产生近场光的一侧上的端面; 端面平坦，具有至少三个顶点或圆角的形状; 以及等离子体激元天线的与平坦端面相对并且接收光的端面相对于平坦端面倾斜，以朝着至少三个顶点或圆角中的一个变得更靠近平坦端面。当等离子体激元的光接收端面用光照射时，只能在整个等离子体天线变薄的顶点或圆角处产生具有足够强度的近场光。

8. 发明申请

US20110026156A1 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US20110026156A1
公开(公告)日：2011-02-03
申请号：US12461157
申请日：2009-08-03
申请人： Koji Shimazawa , Yasuhiro Ito , Yuji Kakinuma , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Yasuhiro Ito , Yuji Kakinuma , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode that emits polarized light of TM mode. The laser diode is arranged so that its bottom surface faces the top surface of the slider. An electrode of the laser diode closer to the active layer is bonded to a conductive layer of the slider, whereby the laser diode is fixed to the slider. As viewed from above the laser diode, the bottom surface of the electrode of the laser diode includes a first area that a light propagation path of the laser diode overlies, and a second area other than the first area. The top surface of the conductive layer is in contact not with the first area but with the second area of the bottom surface of the electrode.
摘要翻译：热辅助磁记录头包括滑块和发射TM模的偏振光的边缘发射激光二极管。激光二极管被布置成使得其底表面面向滑块的顶表面。更靠近有源层的激光二极管的电极被接合到滑块的导电层，由此激光二极管被固定到滑块。从激光二极管的上方观察，激光二极管的电极的底面包括激光二极管的光传播路径重叠的第一区域和第一区域以外的第二区域。导电层的顶表面不与第一区域接触，而是与电极底表面的第二区域接触。

9. 发明授权

US08391106B2 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US08391106B2
公开(公告)日：2013-03-05
申请号：US12461157
申请日：2009-08-03
申请人： Koji Shimazawa , Yasuhiro Ito , Yuji Kakinuma , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Yasuhiro Ito , Yuji Kakinuma , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode that emits polarized light of TM mode. The laser diode is arranged so that its bottom surface faces the top surface of the slider. An electrode of the laser diode closer to the active layer is bonded to a conductive layer of the slider, whereby the laser diode is fixed to the slider. As viewed from above the laser diode, the bottom surface of the electrode of the laser diode includes a first area that a light propagation path of the laser diode overlies, and a second area other than the first area. The top surface of the conductive layer is in contact not with the first area but with the second area of the bottom surface of the electrode.
摘要翻译：热辅助磁记录头包括滑块和发射TM模的偏振光的边缘发射激光二极管。激光二极管被布置成使得其底表面面向滑块的顶表面。更靠近有源层的激光二极管的电极被接合到滑块的导电层，由此激光二极管被固定到滑块。从激光二极管的上方观察，激光二极管的电极的底面包括激光二极管的光传播路径重叠的第一区域和第一区域以外的第二区域。导电层的顶表面不与第一区域接触，而是与电极底表面的第二区域接触。

10. 发明授权

US08164986B2 Thermally-assisted magnetic recording head and thermally-assisted magnetic recording method 有权
标题翻译：热辅助磁记录头和热辅助磁记录方法
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。

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