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1. 发明申请

US20110176398A1 Thermally-Assisted Magnetic Recording Head Having Near-Field Optical Device with Propagation Edge 有权
标题翻译：具有传播边缘的近场光学器件的热辅助磁记录头
公开(公告)号：US20110176398A1
公开(公告)日：2011-07-21
申请号：US12688367
申请日：2010-01-15
申请人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
发明人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a waveguide through which a light for exciting surface plasmon propagates, a near-field optical device configured to be coupled with the light in a surface plasmon mode and to emit near-field light from a near-field-light-generating end surface that forms a portion of an opposed-to-medium surface, and a magnetic pole for generating write field from its end on the opposed-to-medium surface side. The near-field optical device includes a contact-to-waveguide surface having a contact to the waveguide, and a propagation edge provided on a side opposite to the contact-to-waveguide surface, extending to the near-field-light-generating end surface, and configured to propagate there on the surface plasmon excited by the light. A gap between a near-field optical device-opposed surface of the magnetic pole and the propagation edge of the near-field optical device is larger at a section far from the end on the opposed-to-medium surface side than that at a section near the on the opposed-to-medium surface side.
摘要翻译：热辅助磁记录头包括用于激发表面等离子体激元的光传播的波导，被配置成以表面等离子体激元模式与光耦合的近场光学装置，并且从近场发射近场光形成相对中间表面的一部分的光产生端面，以及用于从其相对中间表面侧的端部产生写入场的磁极。近场光学器件包括与波导接触的接触到波导表面，以及设置在与波导表面相对的一侧的传播边缘，延伸到近场光产生端并且被配置为在由光激发的表面等离子体上传播。磁场的近场光学器件相对表面与近场光学器件的传播边缘之间的间隙在远离相对于介质表面侧的端部的部分处比在部分靠近对面 - 中等表面侧。

2. 发明授权

US08208349B2 Thermally-assisted magnetic recording head having a gap between propagation edge and magnetic pole 有权
标题翻译：热辅助磁记录头在传播边缘和磁极之间具有间隙
公开(公告)号：US08208349B2
公开(公告)日：2012-06-26
申请号：US12688367
申请日：2010-01-15
申请人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
发明人： Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki , Tetsuya Roppongi , Tsutomu Chou , Takahiko Izawa , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a waveguide, a near-field optical device which emits near-field light from a near-field-light-generating end surface that forms a portion of an opposed-to-medium surface, and a magnetic pole generates write field from its end on the opposed-to-medium surface side. The near-field optical device includes a contact-to-waveguide surface, and a propagation edge configured to propagate there on the surface plasmon excited by the light. A gap between a near-field optical device-opposed surface of the magnetic pole and the propagation edge of the near-field optical device is larger at a section far from the end on the opposed-to-medium surface side than that at a section near the opposed-to-medium surface side.
摘要翻译：热辅助磁记录头包括波导，近场光学装置，其从形成相对中间表面的一部分的近场光产生端面发射近场光，以及磁场极点从其相对到中等表面侧的端部产生写入场。近场光学器件包括接触到波导表面，以及配置成在由光激发的表面等离子体激元上传播的传播边缘。磁场的近场光学器件相对表面与近场光学器件的传播边缘之间的间隙在远离相对于介质表面侧的端部的部分处比在部分靠近相对中的表面侧。

3. 发明授权

US08325567B2 Thermally-assisted magnetic recording head comprising near-field light generator 有权
标题翻译：包括近场光发生器的热辅助磁记录头
公开(公告)号：US08325567B2
公开(公告)日：2012-12-04
申请号：US12557078
申请日：2009-09-10
申请人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
发明人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head capable of setting the near-field light (NFL-) emission point to be sufficiently close to the write-field-generating portion. The head comprises a magnetic pole, a waveguide propagating light, and a NFL-generator coupled with the light in surface plasmon mode. The NFL-generator comprises a propagation edge extending to the NFL-generating end surface, at least a portion of the propagation edge being opposed to the waveguide with a distance, and the magnetic pole has a surface contact with a surface portion of the NFL-generator including no propagation edge. Therefore, the distance between the magnetic-pole end surface and the NFL-generating end surface becomes zero. The propagation edge is not contacted with the magnetic pole. Accordingly, the surface plasmon can propagate along on the propagation edge without being absorbed by the pole. Thus, the NFL-emission point is ensured to be at the end point of the propagation edge.
摘要翻译：提供了一种能够将近场光（NFL-）发射点设定为足够靠近写入场产生部分的热辅助磁记录头。磁头包括磁极，波导传播光和与表面等离子体激发光模式耦合的NFL发生器。 NFL发生器包括延伸到NFL生成端面的传播边缘，传播边缘的至少一部分与波导相距一定距离，并且磁极与NFL-发生端面的表面部分具有表面接触，发生器不包括传播边。因此，磁极端面与产生NFL的端面之间的距离为零。传播边缘不与磁极接触。因此，表面等离子体激元可以沿着传播边缘传播而不被极吸收。因此，确保NFL发射点处于传播边缘的终点。

4. 发明申请

US20110058272A1 Thermally-Assisted Magnetic Recording Head Comprising Near-Field Light Generator 有权
标题翻译：包括近场光发生器的热辅助磁记录头
公开(公告)号：US20110058272A1
公开(公告)日：2011-03-10
申请号：US12557078
申请日：2009-09-10
申请人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
发明人： Daisuke Miyauchi , Tsutomu Chou , Kosuke Tanaka , Susumu Aoki , Tetsuya Roppongi , Katsuki Kurihara
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head capable of setting the near-field light (NFL-) emission point to be sufficiently close to the write-field-generating portion. The head comprises a magnetic pole, a waveguide propagating light, and a NFL-generator coupled with the light in surface plasmon mode. The NFL-generator comprises a propagation edge extending to the NFL-generating end surface, at least a portion of the propagation edge being opposed to the waveguide with a distance, and the magnetic pole has a surface contact with a surface portion of the NFL-generator including no propagation edge. Therefore, the distance between the magnetic-pole end surface and the NFL-generating end surface becomes zero. The propagation edge is not contacted with the magnetic pole. Accordingly, the surface plasmon can propagate along on the propagation edge without being absorbed by the pole. Thus, the NFL-emission point is ensured to be at the end point of the propagation edge.
摘要翻译：提供了一种能够将近场光（NFL-）发射点设定为足够靠近写入场产生部分的热辅助磁记录头。磁头包括磁极，波导传播光和与表面等离子体激发光模式耦合的NFL发生器。 NFL发生器包括延伸到NFL生成端面的传播边缘，传播边缘的至少一部分与波导相距一定距离，并且磁极与NFL-发生端面的表面部分具有表面接触，发生器不包括传播边。因此，磁极端面与产生NFL的端面之间的距离为零。传播边缘不与磁极接触。因此，表面等离子体激元可以沿着传播边缘传播而不被极吸收。因此，确保NFL发射点处于传播边缘的终点。

5. 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。

6. 发明授权

US08374062B2 Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device 有权
标题翻译：热辅助磁头，头部万向节组件，头臂组件和磁盘设备
公开(公告)号：US08374062B2
公开(公告)日：2013-02-12
申请号：US12888857
申请日：2010-09-23
申请人： Kosuke Tanaka , Tetsuya Roppongi , Daisuke Miyauchi , Katsuki Kurihara
发明人： Kosuke Tanaka , Tetsuya Roppongi , Daisuke Miyauchi , Katsuki Kurihara
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/1278 , G11B5/6088 , G11B2005/0021
摘要： The magnetic read write head has a read head and a write head, each having an end face exposed on an air bearing surface. The write head performs heat assist magnetic recording, and is provided with: a magnetic pole having an end face exposed on the air bearing surface; a waveguide extending toward the air bearing surface to propagate light; and a plasmon generator provided between the magnetic pole and the waveguide, and generating near-field light based on the light propagated through the waveguide to emit the generated near-field light from the air bearing surface. The waveguide is surrounded by a clad layer, and the magnetic pole is in contact with a heat sink having a heat conductivity higher than that of the clad layer. Although the near-field light causes temperature rise, heat energy from the plasmon generator to the magnetic pole is released through the heat sink.
摘要翻译：磁读写头具有读头和写头，每一个具有暴露在空气轴承表面上的端面。写头执行热辅助磁记录，并且设置有：具有暴露在空气轴承表面上的端面的磁极; 波导向空气轴承表面延伸以传播光; 以及设置在磁极和波导之间的等离子体发生器，并且基于通过波导传播的光产生近场光，以从空气轴承表面发射产生的近场光。波导被包覆层包围，并且磁极与导热率高于包层的散热器接触。虽然近场光引起温度升高，但是从等离子体发生器到磁极的热能通过散热器释放。

7. 发明授权

US07948710B2 Heat-assisted thin-film magnetic head and heat-assisted magnetic recording method 有权
标题翻译：热辅助薄膜磁头和热辅助磁记录方法
公开(公告)号：US07948710B2
公开(公告)日：2011-05-24
申请号：US12177501
申请日：2008-07-22
申请人： Koji Shimazawa , Daisuke Miyauchi , Katsuki Kurihara
发明人： Koji Shimazawa , Daisuke Miyauchi , Katsuki Kurihara
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/0005 , G11B2005/0021
摘要： In a heat-assisted magnetic recording, a thin-film magnetic head, which can form stable recording bits pattern having steep magnetization transition regions without using a near-field light generating element, is provided. The head is formed on an element forming surface of a substrate, and has a waveguide for leading a light for heat-assist to a magnetic medium and a write element formed on a trailing side of the waveguide and having a magnetic pole for applying a write field to the medium. Here, a write field profile, which is an intensity distribution of the write field from the pole along a track in a recoding layer of the medium, has a projecting region on a leading side. Further, an anisotropy field profile, which is a distribution of an anisotropy field when the anisotropy field is reduced by irradiating the light on a part of the recoding layer, traverses the projecting region.
摘要翻译：在热辅助磁记录中，提供了可以形成具有陡峭的磁化转变区而不使用近场光产生元件的稳定记录位图形的薄膜磁头。头形成在基板的元件形成表面上，并且具有用于将用于将热辅助的光引导到磁介质的波导和形成在波导的后侧的写入元件，并且具有用于施加写入的磁极领域到媒介。这里，作为介质的记录层中的沿着磁道的磁极的写入场的强度分布的写场分布在前端具有突出区域。此外，当通过在记录层的一部分照射光而减小各向异性场时的各向异性场的分布的各向异性场分布横穿该突出区域。

8. 发明授权

US08213117B2 Magnetic head with protective layer and a protective film removal method for the magnetic head 有权
标题翻译：具有保护层的磁头和用于磁头的保护膜去除方法
公开(公告)号：US08213117B2
公开(公告)日：2012-07-03
申请号：US12794148
申请日：2010-06-04
申请人： Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
发明人： Yosuke Antoku , Norio Takahashi , Katsuki Kurihara
IPC分类号： G11B5/127
CPC分类号： G11B5/6011 , G11B5/3163 , G11B5/607 , Y10T29/49027
摘要： A magnetic head includes a reproducing element for reproducing information recorded on a magnetic recording medium, a recording element for recording information on the magnetic recording medium, and a heating resistor. The magnetic head has a magnetic medium-facing surface on which the reproducing element and the recording element are exposed.The magnetic head is obtained as follows: (1) a protective film is formed to cover the magnetic medium-facing surface; (2) within a case of a magnetic recording/reproducing apparatus including the magnetic recording medium, the magnetic medium-facing surface is opposed to a surface of the magnetic recording medium; (3) the heating resistor is allowed to generate heat by power supply while rotating the magnetic recording medium, wherein thermal expansion due to the heat generation causes bulging of the magnetic medium-facing surface, bringing the protective film into contact with the magnetic recording medium; and (4) a portion of the protective film covering at least one of the reproducing element and the recording element is removed by scraping.
摘要翻译：磁头包括用于再现记录在磁记录介质上的信息的再现元件，用于在磁记录介质上记录信息的记录元件和加热电阻器。磁头具有面向再现元件和记录元件的金属介质表面。磁头如下获得：（1）形成保护膜以覆盖面向磁介质的表面; （2）在包括磁记录介质的磁记录/再现装置的情况下，磁介质面向表面与磁记录介质的表面相对; （3）使加热电阻器在旋转磁记录介质的同时通过供电产生热量，其中由于发热引起的热膨胀导致磁介质面向表面的膨胀，使保护膜与磁记录介质接触 ; 和（4）通过刮擦除去覆盖再现元件和记录元件中的至少一个的保护膜的一部分。

9. 发明申请

US20110310510A1 PERPENDICULAR MAGNETIC WRITE HEAD AND MAGNETIC RECORDING DEVICE 有权
标题翻译：全磁性写磁头和磁记录装置
公开(公告)号：US20110310510A1
公开(公告)日：2011-12-22
申请号：US12819552
申请日：2010-06-21
申请人： Kenkichi ANAGAWA , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
发明人： Kenkichi ANAGAWA , Katsuki Kurihara , Takeo Kagami , Kei Hirata , Minoru Ota
IPC分类号： G11B5/10
CPC分类号： G11B5/3146 , G11B5/1278 , G11B5/235 , G11B5/315
摘要： A main magnetic-pole layer is provided with, at the tip end portion thereof, a trailing shied on the trailing side via a non-magnetic gap layer, and the non-magnetic gap layer includes therein one or more magnetic layers. This magnetic layer appropriately controls the amount of magnetic fluxes coming from the tip end portion of the main magnetic-pole layer for capturing into the trailing shield because the magnetic fluxes coming from the tip end portion of the main magnetic-pole layer go through the magnetic layer before being captured into the trailing shield.
摘要翻译：主磁极层在其末端部分经由非磁隙层在后侧设置有尾部，非磁性间隙层包括一个或多个磁性层。该磁性层适当地控制来自主磁极层的前端部分的磁通量，用于捕获到后屏蔽件中，因为来自主磁极层的末端部分的磁通量通过磁在被捕获到后盾之前。

10. 发明申请

US20060103981A1 Thin-film magnetic head with heating element for adjusting magnetic spacing and control method of magnetic spacing 有权
标题翻译：具有用于调节磁间距的加热元件的薄膜磁头和磁间距的控制方法
公开(公告)号：US20060103981A1
公开(公告)日：2006-05-18
申请号：US11231902
申请日：2005-09-22
申请人： Hiroshi Kiyono , Katsuki Kurihara
发明人： Hiroshi Kiyono , Katsuki Kurihara
IPC分类号： G11B5/147
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4853 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion response of the write head element due to the heat generated from the heating element can be set to the same level as that due to the heat generated from the write coil layer in order to adequately resolve the deficiency in the writing performance during the starting period of writing, is provided. The head comprises: at least one write head element including a magnetic pole layer; and at least one first heating element generating a heat to expand the at least one write head element thermally, the at least one first heating element being contacted with the magnetic pole layer.
摘要翻译：一种薄膜磁头，由于由加热元件产生的热量，写入头元件的突出响应可以被设置为与由写入线圈层产生的热量相同的水平，以便充分地解决缺陷在写作开始时的写作表现中，提供。头部包括：至少一个包括磁极层的写入头元件; 以及至少一个第一加热元件，其产生热量以使所述至少一个写入头元件热膨胀，所述至少一个第一加热元件与所述磁极层接触。

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