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。

公开(公告)号：US08542456B2

公开(公告)日：2013-09-24

申请号：US13218150

申请日：2011-08-25

申请人： Takekazu Yamane ,  Yosuke Antoku ,  Katsuki Kurihara ,  Norio Takahashi ,  Kenzo Makino

发明人： Takekazu Yamane ,  Yosuke Antoku ,  Katsuki Kurihara ,  Norio Takahashi ,  Kenzo Makino

IPC分类号： G11B5/127 ,  G11B21/02 ,  G11B5/48 ,  G11B5/02

CPC分类号： G11B5/6076 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/3146 ,  G11B5/607

摘要： A magnetic head includes a medium facing surface that faces a surface of a recording medium, a write head section, a contact sensor that detects contact of the medium facing surface with the surface of the recording medium, and a heat sink adjacent to the contact sensor. The write head section has a magnetic pole that produces a write magnetic field for writing data on the recording medium. The contact sensor and the heat sink have respective end faces located in the medium facing surface. The contact sensor varies in resistance in response to temperature variations, and is to be energized. The heat sink includes an intermediate layer made of a nonmagnetic metal material, and two ferromagnetic layers made of a metal-based magnetic material, the two ferromagnetic layers being disposed with the intermediate layer therebetween, and being antiferromagnetically exchange-coupled to each other via the intermediate layer.

摘要翻译： 磁头包括面向记录介质的表面的介质面向表面，写入头部分，检测介质面向表面与记录介质表面的接触的接触传感器以及与接触传感器相邻的散热器 。 写头部分具有产生用于在记录介质上写入数据的写入磁场的磁极。 接触传感器和散热器具有位于介质面对表面中的相应端面。 接触传感器响应于温度变化而变化，并且被通电。 散热器包括由非磁性金属材料制成的中间层和由金属基磁性材料制成的两个铁磁层，所述两个铁磁层在其间具有中间层，并经由该铁磁材料彼此反铁磁交换耦合 中间层。

公开(公告)号：US20110299187A1

公开(公告)日：2011-12-08

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： G11B5/02 ,  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。

公开(公告)号：US20100123966A1

公开(公告)日：2010-05-20

申请号：US12274470

申请日：2008-11-20

申请人： Yosuke ANTOKU ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

发明人： Yosuke ANTOKU ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/6064 ,  G11B5/607 ,  G11B5/6076 ,  G11B2005/0005

摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.

摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。

公开(公告)号：US08144427B2

公开(公告)日：2012-03-27

申请号：US12274470

申请日：2008-11-20

申请人： Yosuke Antoku ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

发明人： Yosuke Antoku ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

IPC分类号： G11B5/10 ,  G11B5/56

CPC分类号： G11B5/314 ,  G11B5/6064 ,  G11B5/607 ,  G11B5/6076 ,  G11B2005/0005

摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.

摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。

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。

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。

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。

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。

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。