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1. 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。

2. 发明授权

US08300359B2 Perpendicular magnetic recording head and magnetic recording device 有权
标题翻译：垂直磁记录头和磁记录装置
公开(公告)号：US08300359B2
公开(公告)日：2012-10-30
申请号：US12654708
申请日：2009-12-30
申请人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
发明人： Kei Hirata , Katsuki Kurihara , Kenkichi Anagawa , Takeo Kagami
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A perpendicular magnetic write head includes: a magnetic pole; a pair of side shields on both sides, in a write-track width direction, of the magnetic pole with respective side gaps in between; a trailing shield on a trailing side of the magnetic pole and the pair of side shields with a trailing gap in between. Each of the magnetic pole, the side shield, the trailing shield, the side gap, and the trailing gap has an end face exposed on an air bearing surface. The trailing gap has a first regional part and a second regional part. The first regional part separates a trailing edge of the magnetic pole from the trailing shield, and the second regional part separates the pair of side shields from the trailing shield. All or a part of the second regional part has a thickness larger than a thickness of the first regional part.
摘要翻译：垂直磁性写头包括：磁极; 在磁道的两侧的一对侧面屏蔽件，其两侧面间隙相差; 在磁极的后侧上的后挡板和在其间具有拖尾间隙的一对侧挡板。磁极，侧屏蔽，后屏蔽，侧面间隙和尾部间隙中的每一个具有暴露在空气轴承表面上的端面。尾随间隙具有第一区域部分和第二区域部分。第一区域部分将磁极的后缘与后屏蔽分开，并且第二区域部分将一对侧屏蔽与后屏蔽分开。第二区域部分的全部或一部分的厚度大于第一区域部分的厚度。

3. 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。

4. 发明申请

US20120075965A1 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，头盔组件，头盔组件和磁盘设备
公开(公告)号：US20120075965A1
公开(公告)日：2012-03-29
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： G11B13/08
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。

5. 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。

6. 发明授权

US07903370B2 Thin-film magnetic head with coil-insulating layer that thermal expansion coefficient and young'S modulus are specified 有权
标题翻译：具有线圈绝缘层的薄膜磁头指定了热膨胀系数和年轻模量
公开(公告)号：US07903370B2
公开(公告)日：2011-03-08
申请号：US11757114
申请日：2007-06-01
申请人： Katsuki Kurihara , Hiraku Hirabayashi , Norikazu Ota
发明人： Katsuki Kurihara , Hiraku Hirabayashi , Norikazu Ota
IPC分类号： G11B5/17
CPC分类号： G11B5/3123 , G11B5/17 , G11B5/3106 , G11B5/3133 , G11B5/3136 , G11B5/6064 , G11B2005/0002
摘要： A thin-film magnetic head which suppresses the TPTP phenomenon due to the environment temperature is provided. The thin-film magnetic head includes, an electromagnetic coil element having a coil layer and coil-insulating layer, and an overcoat layer. A width of the coil-insulating layer in a track-width direction is larger than a width that is needed to insulate the whole coil layer, and is at least 46 μm, and a length of the coil-insulating layer in a direction perpendicular to the track-width direction is larger than a length that is needed to insulate the whole coil layer, and is at least 75 μm. In addition, a heat expansion coefficient of the coil-insulating layer is larger than or equal to 30×10−6/K, and a Young's modulus of the coil-insulating layer is larger than or equal to 1 GPa and smaller than or equal to 4 GPa.
摘要翻译：提供了抑制由于环境温度引起的TPTP现象的薄膜磁头。薄膜磁头包括具有线圈层和线圈绝缘层的电磁线圈元件和外涂层。线圈绝缘层在轨道宽度方向上的宽度大于使整个线圈层绝缘所需的宽度，并且至少为46μm，线圈绝缘层的垂直方向的长度轨道宽度方向大于绝缘整个线圈层所需的长度，并且至少为75μm。此外，线圈绝缘层的热膨胀系数大于或等于30×10-6 / K，线圈绝缘层的杨氏模量大于或等于1GPa且小于或等于至4 GPa。

7. 发明授权

US07770438B2 Head slider, glide height checking apparatus, and glide height checking method 有权
标题翻译：头滑块，滑行高度检查装置和滑行高度检查方法
公开(公告)号：US07770438B2
公开(公告)日：2010-08-10
申请号：US11819096
申请日：2007-06-25
申请人： Hiroshi Kiyono , Nobuya Oyama , Katsuki Kurihara , Noboru Yamanaka , Chung Keung Ho , Cheung Kwan Lau , Tatsushi Shimizu
发明人： Hiroshi Kiyono , Nobuya Oyama , Katsuki Kurihara , Noboru Yamanaka , Chung Keung Ho , Cheung Kwan Lau , Tatsushi Shimizu
IPC分类号： G11B21/12
CPC分类号： G11B5/6076 , G11B5/3133 , G11B5/607
摘要： The head slider has a plurality of heaters each heating a corresponding region of the ABS, and a sensor detecting collision of the ABS with a projection on a surface of the magnetic disk. Currents supplied to the respective heaters are controlled and produce heats independently of one another. The heats produce projections on the corresponding regions of the ABS, respectively. The ABS with asperity can be planarized through appropriately controlling magnitude of the currents supplied to the heaters. Thus, the variation of a sensor output depending on asperity of the ABS is effectively reduced. Another head slider has a heater locally heating a corresponding region of the ABS. The heater has a structure where a central portion is away from the ABS compared with end portions, or a structure where calorific power of a central portion is smaller than that of each of end portions. Thus, overall projection shape becomes flat.
摘要翻译：磁头滑动器具有多个加热器，每个加热器对应于ABS的相应区域，并且传感器检测ABS与磁盘表面上的突起的碰撞。供应给相应加热器的电流被控制并且彼此独立地产生热量。热量分别在ABS的相应区域上产生突起。具有粗糙度的ABS可以通过适当地控制供给到加热器的电流的大小来平坦化。因此，根据ABS的粗糙度的传感器输出的变化被有效地降低。另一个头滑块具有加热器来对ABS的相应区域进行局部加热。与端部相比，加热器具有中心部分远离ABS的结构，或者中心部分的发热量小于每个端部的发热量的结构。因此，整体投影形状变平坦。

8. 发明授权

US07724471B2 Thin-film magnetic head with heating means for adjusting magnetic spacing 有权
标题翻译：具有用于调节磁间距的加热装置的薄膜磁头
公开(公告)号：US07724471B2
公开(公告)日：2010-05-25
申请号：US11282651
申请日：2005-11-21
申请人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Cheuk Wing Leung
发明人： Takamitsu Sakamoto , Taro Oike , Katsuki Kurihara , Eric Cheuk Wing Leung
IPC分类号： G11B21/21
CPC分类号： G11B5/314 , G11B5/3136 , G11B5/4826 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head that the protrusion of the head end surface due to heat generated from the heating means becomes large enough to set the magnetic spacing dMS to the smaller value efficiently is provided. The head comprises: a substrate having an element-formed surface on which at least one concave portion is formed and an ABS; at least one magnetic head element formed above or on the element-formed surface; at least one thermal expansion layer embedded in the at least one concave portion; and at least one heating means positioned directly above the at least one thermal expansion layer.
摘要翻译：提供了由于由加热装置产生的热量而使头端表面的突起变得足够大以将磁距dMS设定为较小值的薄膜磁头。头部包括：具有形成有至少一个凹部的元件形成表面的基板和ABS; 至少一个磁头元件形成在元件形成表面之上或之上; 至少一个热膨胀层嵌入在所述至少一个凹部中; 以及至少一个位于至少一个热膨胀层上方的加热装置。

9. 发明申请

US20100123966A1 MAGNETIC HEAD, HEAD ASSEMBLY AND MAGNETIC RECORDING/REPRODUCING APPARATUS 有权
标题翻译：磁头，头组件和磁记录/再现装置
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。

10. 发明授权

US07688537B2 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：US07688537B2
公开(公告)日：2010-03-30
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： G11B21/02 , G11B5/127
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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