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1. 发明申请

US20110222184A1 OPTICAL WAVEGUIDE AND THERMAL ASSIST MAGNETIC RECORDING HEAD THEREWITH 有权
标题翻译：光波导和热辅助磁记录头
公开(公告)号：US20110222184A1
公开(公告)日：2011-09-15
申请号：US12720083
申请日：2010-03-09
申请人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Seiichi TAKAYAMA
发明人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA , Seiichi TAKAYAMA
IPC分类号： G11B5/02 , G02B6/26
CPC分类号： G02B6/1228 , B82Y20/00 , G02B6/1226 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An optical waveguide, on account of its ability to apply phase resonance of a wavelength and of a first and second triangular plate-like spot size converter members formed of the same material as a core material and being arranged and formed in a substantially symmetrical structure, can promote shortening of the waveguide length and contrive to reduce the size of the optical waveguide itself. Further, an optical waveguide having excellent spot size conversion efficiency can be obtained even in a reduced size.
摘要翻译：光波导由于其施加波长的相位谐振的能力以及由与芯材相同的材料形成并以基本对称的结构形式构成的第一和第二三角形板状光斑尺寸转换器部件，可以促进波导长度的缩短并且有助于减小光波导本身的尺寸。此外，即使在减小的尺寸的情况下也可以获得具有优异的光斑尺寸转换效率的光波导。

2. 发明申请

US20110157738A1 METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD BY SEMI-ACTIVE ALIGNMENT 有权
标题翻译：通过半主动对准制造热辅助磁记录头的方法
公开(公告)号：US20110157738A1
公开(公告)日：2011-06-30
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： G11B5/02 , G11B5/127
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。

3. 发明申请

US20090266789A1 MANUFACTURING METHOD OF HEAT-ASSISTED MAGNETIC HEAD CONSTITUTED OF SLIDER AND LIGHT SOURCE UNIT 有权
标题翻译：滑动灯和光源单元组成的热辅助磁头的制造方法
公开(公告)号：US20090266789A1
公开(公告)日：2009-10-29
申请号：US12108234
申请日：2008-04-23
申请人： Koji SHIMAZAWA , Yasuhiro ITO , Eiji KOMURA , Seiichi TAKAYAMA , Kosuke TANAKA
发明人： Koji SHIMAZAWA , Yasuhiro ITO , Eiji KOMURA , Seiichi TAKAYAMA , Kosuke TANAKA
IPC分类号： B44C1/22 , B32B38/04
CPC分类号： G11B5/314 , G11B5/102 , G11B5/3163 , G11B2005/0005 , G11B2005/0021 , Y10T29/49025 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49052 , Y10T156/1062
摘要： Provided is a manufacturing method of heat-assisted magnetic recording head, in which a light source unit can be easily joined to a slider with sufficiently high accuracy, under avoiding the excessive mechanical stress. The manufacturing method comprises the steps of: moving relatively the light source unit and the slider, while applying a sufficient voltage between an upper electrode of the light source and an electrode layer provided in the slider; and setting the light source unit and the slider in desired positions in a direction perpendicular to the element-integration surface of the slider substrate. The desired positions are positions where the light source just emits due to a surface contact between: the protruded portion of the lower surface of the light source; and the upper surface of the electrode layer, which is a portion of the wall surface of a step formed on the head part.
摘要翻译：提供一种热辅助磁记录头的制造方法，其中光源单元可以以足够高的精度容易地接合到滑块，以避免过度的机械应力。该制造方法包括以下步骤：在光源的上电极和设置在滑块中的电极层之间施加足够的电压，相对移动光源单元和滑块; 以及将光源单元和滑块设置在与滑动器基板的元件集成表面垂直的方向上的期望位置。期望的位置是由于光源的下表面的突出部分之间的表面接触而光源刚刚发射的位置; 以及作为形成在头部上的台阶的壁面的一部分的电极层的上表面。

4. 发明申请

US20090262448A1 HEAT-ASSISTED MAGNETIC HEAD CONSTITUTED OF SLIDER AND LIGHT SOURCE UNIT, AND MANUFACTURING METHOD OF THE HEAD 有权
标题翻译：滑动灯和光源单元组成的热辅助磁头及头部的制造方法
公开(公告)号：US20090262448A1
公开(公告)日：2009-10-22
申请号：US12107216
申请日：2008-04-22
申请人： Koji SHIMAZAWA , Yasuhiro ITO , Eiji KOMURA , Seiichi TAKAYAMA , Kosuke TANAKA
发明人： Koji SHIMAZAWA , Yasuhiro ITO , Eiji KOMURA , Seiichi TAKAYAMA , Kosuke TANAKA
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/102 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a heat-assisted magnetic recording head constituted of a light source unit and a slider, which can be easily joined to each other with sufficiently high accuracy of joining position. The slider comprises a head part including a waveguide having an incident center on its end. The surface including an emission center of the light source is protruded from a joining surface of the unit substrate. And a step is provided on an end surface of the head part. The protruded portion of a lower surface of the light source has a surface contact with a wall surface of the step. Further, the distance between the wall surface of the step and the incident center of the waveguide is set to be equal to the distance between the emission center of the light source and the protruded portion of the lower surface of the light source.
摘要翻译：提供一种由光源单元和滑块构成的热辅助磁记录头，其可以以足够高的接合位置精度彼此容易地接合。滑块包括头部，其包括在其端部具有入射中心的波导。包括光源的发射中心的表面从单元基板的接合表面突出。并且在头部的端面上设置有台阶。光源的下表面的突出部分与台阶的壁面具有表面接触。此外，台阶壁面与波导入射中心之间的距离被设定为等于光源的发射中心与光源的下表面的突出部分之间的距离。

5. 发明申请

US20100073802A1 Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereof 有权
标题翻译：具有不对称等离子体激元天线的热辅助磁头及其制造方法
公开(公告)号：US20100073802A1
公开(公告)日：2010-03-25
申请号：US12237810
申请日：2008-09-25
申请人： Eiji KOMURA , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Kosuke TANAKA , Koji SHIMAZAWA
发明人： Eiji KOMURA , Seiichi TAKAYAMA , Satoshi TOMIKAWA , Kosuke TANAKA , Koji SHIMAZAWA
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A thermally assisted magnetic head according to the present invention includes: a medium-facing surface, a main magnetic pole provided on the medium-facing surface, and a plasmon antenna provided on the medium-facing surface in the vicinity of the main magnetic pole, wherein the plasmon antenna is shaped as a triangular flat plate having first, second and third corners, such that the distance from the first corner to the main magnetic pole is shorter than the distance from the second corner to the main magnetic pole and the distance from the third corner to the main magnetic pole, and the interior angle α of the first corner, the interior angle β of the second corner and the interior angle γ of the third corner satisfy relationships α
摘要翻译：根据本发明的热辅助磁头包括：中介面，设在中介面上的主磁极和设置在主磁极附近的中介面上的等离子体激元，其中所述等离子体激元天线成形为具有第一，第二和第三角的三角形平板，使得从第一角到主磁极的距离比从第二角到主磁极的距离短，主磁极的第三角，第一角的内角α，内角＆bgr; 并且第三角的内角γ满足关系α<＆bgr;α<γ和＆bgr;≠γ。

6. 发明申请

US20100061200A1 NEAR-FIELD LIGHT GENERATING ELEMENT AND HEAT-ASSISTED MAGNETIC RECORDING HEAD UTILIZING SURFACE PLASMON MODE 有权
标题翻译：近场光产生元件和热辅助磁记录头使用表面等离子体模式
公开(公告)号：US20100061200A1
公开(公告)日：2010-03-11
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。

7. 发明申请

US20100073817A1 PLASMON ANTENNA FOR THERMALLY ASSISTED MAGNETIC HEAD 有权
标题翻译：用于热辅助磁头的PLASMON天线
公开(公告)号：US20100073817A1
公开(公告)日：2010-03-25
申请号：US12237767
申请日：2008-09-25
申请人： Seiichi TAKAYAMA , Eiji KOMURA , Yasuhiro ITO , Kosuke TANAKA , Koji SHIMAZAWA
发明人： Seiichi TAKAYAMA , Eiji KOMURA , Yasuhiro ITO , Kosuke TANAKA , Koji SHIMAZAWA
IPC分类号： G11B5/00
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A plasmon antenna of the present invention is used in a thermally assisted magnetic head that includes: a medium-facing surface set, parallel to an XY plane; a magnetic pole for writing, extending toward the medium-facing surface, and a plasmon antenna comprising a pair of small metal bodies irradiated with excitation light for near-field light generation propagating in a Z-axis direction. Respective corners of the small metal bodies are spaced apart opposite each other along a TE mode direction of the excitation light. A distance between the corners gives the shortest distance between the small metal bodies, and a distance from each corner to the leading end of the magnetic pole gives a shortest distance from the small metal bodies to the leading end.
摘要翻译：本发明的等离子体天线用于热辅助磁头，其包括：平行于XY平面的面向中间的表面组; 用于写入的磁极，朝向介质中的表面延伸;以及等离子体激元，其包括用激励光照射的一对小的金属体，用于沿Z轴方向传播的近场光产生。小金属体的各个角部沿着激发光的TE模式方向相互间隔开。拐角之间的距离给出了小金属体之间的最短距离，从磁极的每个拐角到前端的距离从小金属体到前端都具有最短的距离。

8. 发明申请

US20110164479A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING WAVEGUIDE WITH INVERTED-TRAPEZOIDAL SHAPE 有权
标题翻译：带有倒角形状的包含波导的热辅助磁记录头
公开(公告)号：US20110164479A1
公开(公告)日：2011-07-07
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。

9. 发明申请

US20110116349A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING NEAR-FIELD OPTICAL DEVICE WITH PROPAGATION EDGE 有权
标题翻译：包含传播边缘的近场光学装置的热辅助磁记录头
公开(公告)号：US20110116349A1
公开(公告)日：2011-05-19
申请号：US12617853
申请日：2009-11-13
申请人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA
发明人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/6005 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： There is provided a near-field-light (NFL) generating optical system in which the point where near-field (NF) light is generated can be provided sufficiently close to the end surface of a magnetic pole that generates write field. The optical system comprises: a waveguide through which a light for exciting surface plasmon propagates; and a NF-optical device configured to be coupled with the light in a surface plasmon mode. The NF-optical device comprises: a contact-to-waveguide surface having a contact to the waveguide; and a propagation edge provided on the side opposite to the contact-to-waveguide surface, extending to the NFL-generating end surface of the device, and configured to propagate thereon the surface plasmon excited by the light. In this optical system, the point, where NF-light is generated, of the NFL-generating end surface is reliably located on the side opposite to the waveguide.
摘要翻译：提供了一种产生近场（NF）光的点的近场光（NFL）产生光学系统，其可以充分靠近生成写入场的磁极的端面附近。该光学系统包括：用于激发表面等离子体激元的光传播的波导; 以及配置成以表面等离子体激发模式与光耦合的NF光学装置。 NF光学器件包括：具有与波导的接触的接触到波导表面; 以及设置在与所述接触到所述波导表面相对的一侧的传播边缘，延伸到所述装置的产生NFL的端面，并且被配置为在其上传播由所述光激发的所述表面等离子体。在该光学系统中，NFL产生端面的产生NF光的点可靠地位于与波导相反的一侧。

10. 发明申请

US20120176874A1 LIGHT SOURCE UNIT INCLUDING A PHOTODETECTOR, AND THERMALLY-ASSISTED MAGNETIC RECORDING HEAD 有权
标题翻译：光源单元，包括一个光电转换器和一个辅助磁记录头
公开(公告)号：US20120176874A1
公开(公告)日：2012-07-12
申请号：US12986532
申请日：2011-01-07
申请人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA
发明人： Eiji KOMURA , Tsutomu CHOU , Koji SHIMAZAWA
IPC分类号： G11B13/04 , H01L31/0248 , G11B13/08 , G01D5/32
CPC分类号： G11B5/314 , G01D5/34 , G11B5/6088 , G11B2005/0021
摘要： A light source unit includes a light source and a photodetector. The light source has an emission part for emitting light. The photodetector has a light receiving surface for receiving the light emitted from the emission part, and detects the light. The light source unit further includes a grating made of metal and disposed to extend along the light receiving surface. The grating includes a plurality of line-shaped portions that each extend in a direction intersecting the direction of travel of the light and that are located at positions different from each other along the direction of travel of the light.
摘要翻译：光源单元包括光源和光电检测器。光源具有用于发光的发射部分。光电检测器具有用于接收从发射部分发射的光的光接收表面，并检测光。光源单元还包括由金属制成并被设置为沿着光接收表面延伸的光栅。光栅包括多个线状部分，每个线状部分沿着与光的行进方向交叉的方向延伸，并且位于沿着光的行进方向彼此不同的位置。

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