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1. 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。

2. 发明申请

US20110002199A1 Near-Field Light Generator Comprising Waveguide With Inclined End Surface 有权
标题翻译：包括倾斜端面波导的近场光发生器
公开(公告)号：US20110002199A1
公开(公告)日：2011-01-06
申请号：US12496340
申请日：2009-07-01
申请人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
发明人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
IPC分类号： G11B11/00 , G02B6/12 , G11B5/02
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译：提供能够避免产生的近场光的噪声的近场光发生器。发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声。

3. 发明授权

US08102736B2 Near-field light generator comprising waveguide with inclined end surface 有权
标题翻译：近场光发生器包括具有倾斜端面的波导
公开(公告)号：US08102736B2
公开(公告)日：2012-01-24
申请号：US12496340
申请日：2009-07-01
申请人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
发明人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译：提供能够避免产生的近场光的噪声的近场光发生器。发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声。

4. 发明授权

US07885029B2 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：US07885029B2
公开(公告)日：2011-02-08
申请号：US12423269
申请日：2009-04-14
申请人： Daisuke Miyauchi , Susumu Aoki , Seiichi Takayama , Koji Shimazawa , Tetsuya Roppongi
发明人： Daisuke Miyauchi , Susumu Aoki , Seiichi Takayama , Koji Shimazawa , Tetsuya Roppongi
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A head capable of favorite thermally-assisted magnetic recording without depending on the use of a near-field light generator is provided. The head comprises a write head element formed on the trailing side from a waveguide and comprising a first main pole. The first main pole and the waveguide are opposed to each other through a first clad layer, and a second clad layer is provided on a rear side from the first main pole. This gives that the end surface of the waveguide can be placed much close to the end surface of the first main pole apart by only a thickness of the first clad layer. As a result, the end surface of the first main pole can apply a sufficient intensity of write field to the intensity center and its vicinity of the light spot formed on the magnetic recording layer.
摘要翻译：提供了一种能够不依赖于近场光发生器的使用的热辅助磁记录的头部。头包括形成在波导的后侧并包括第一主极的写头元件。第一主极和波导通过第一覆盖层彼此相对，并且第二覆盖层设置在从第一主极的后侧。这使得波导的端面可以被放置得非常靠近第一主极的端表面，只有第一覆盖层的厚度分开。结果，第一主极的端面可以对形成在磁记录层上的光点的强度中心及其附近施加足够强的写入场。

5. 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。

6. 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。

7. 发明申请

US20100290323A1 Near-field light generating device including near-field light generating element with edge part opposed to waveguide 有权
标题翻译：近场光产生装置包括具有与波导相对的边缘部分的近场光产生元件
公开(公告)号：US20100290323A1
公开(公告)日：2010-11-18
申请号：US12453508
申请日：2009-05-13
申请人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
发明人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
IPC分类号： G11B11/00 , G11B5/02 , G11B5/48 , C23C16/06
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/6005 , G11B2005/001 , G11B2005/0021
摘要： A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.
摘要翻译：近场光产生装置包括：具有在顶面开口的槽的波导; 包层，设置在波导的顶表面上，并且具有与槽邻接的开口; 容纳在所述开口中的近场光产生元件; 以及介于所述近场光产生元件与所述槽和所述开口中的所述波导和所述包覆层中的每一个之间的缓冲层。近场光产生元件包括：相对于凹槽彼此间隔距离减小的第一和第二侧表面; 边缘部分，其将所述第一和第二侧表面彼此连接并且与所述凹槽相对，其间具有缓冲层; 以及位于边缘部的一端的近场光产生部，产生近场光。

8. 发明授权

US08089830B2 Near-field light generating device including near-field light generating element with edge part opposed to waveguide 有权
标题翻译：近场光产生装置包括具有与波导相对的边缘部分的近场光产生元件
公开(公告)号：US08089830B2
公开(公告)日：2012-01-03
申请号：US12453508
申请日：2009-05-13
申请人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
发明人： Makoto Isogai , Susumu Aoki , Daisuke Miyauchi , Eiji Komura , Seiichi Takayama
IPC分类号： G11B11/00 , G11B5/02 , G11B5/48 , C23C16/06
CPC分类号： G11B5/314 , G11B5/4826 , G11B5/6005 , G11B2005/001 , G11B2005/0021
摘要： A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.
摘要翻译：近场光产生装置包括：具有在顶面开口的槽的波导; 包层，设置在波导的顶表面上，并且具有与槽邻接的开口; 容纳在所述开口中的近场光产生元件; 以及介于所述近场光产生元件与所述槽和所述开口中的所述波导和所述包覆层中的每一个之间的缓冲层。近场光产生元件包括：相对于凹槽彼此间隔距离减小的第一和第二侧表面; 边缘部分，其将所述第一和第二侧表面彼此连接并且与所述凹槽相对，其间具有缓冲层; 以及位于边缘部的一端的近场光产生部，产生近场光。

9. 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。

10. 发明授权

US08077559B1 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：US08077559B1
公开(公告)日：2011-12-13
申请号：US12823491
申请日：2010-06-25
申请人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Katsuki Kurihara
发明人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Susumu Aoki , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G02B5/008 , G02B27/56 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： An outer surface of a plasmon generator includes: a plasmon exciting part that faces an evanescent light generating surface with a predetermined distance therebetween; and a front end face located in a medium facing surface. The plasmon generator has: first and second sidewall parts that are connected to the plasmon exciting part and increase in distance from each other with increasing distance from the plasmon exciting part; and at least one extended portion connected to an edge of at least one of the first and second sidewall parts opposite from the plasmon exciting part. A magnetic pole has a portion interposed between the first and second sidewall parts. The front end face includes first and second portions lying at ends of the first and second sidewall parts and connected to each other into a V-shape. An end face of the magnetic pole has a portion interposed between the first and second portions of the front end face.
摘要翻译：等离子体激元发生器的外表面包括：等离子体激元部分，其面对其间具有预定距离的渐逝光产生表面; 以及位于面向介质的表面中的前端面。等离子体发生器具有：第一和第二侧壁部分，其连接到等离子体激元部分，并且随着离等离子体激元部分的距离增加而彼此间隔距离增加; 以及至少一个连接到与所述等离子体激元部分相对的所述第一和第二侧壁部分中的至少一个的边缘的延伸部分。磁极具有介于第一和第二侧壁部分之间的部分。前端面包括位于第一和第二侧壁部分的端部处并且彼此连接成V形的第一和第二部分。磁极的端面具有插入在前端面的第一和第二部分之间的部分。

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