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1. 发明授权

US08254215B1 Thermally-assisted magnetic recording head 有权
标题翻译：热辅助磁记录头
公开(公告)号：US08254215B1
公开(公告)日：2012-08-28
申请号：US13282943
申请日：2011-10-27
申请人： Kosuke Tanaka , Susumu Aoki , Kei Hirata , Makoto Isogai
发明人： Kosuke Tanaka , Susumu Aoki , Kei Hirata , Makoto Isogai
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole, a waveguide, and a plasmon generator. The main pole has a front end face including first and second ends that are opposite in a track width direction. An arbitrary cross section of the main pole that passes through an arbitrary point on the front end face and is perpendicular to a medium facing surface and to the track width direction has a length in a direction perpendicular to the medium facing surface. When the arbitrary point on the front end face is located at a center of the front end face in the track width direction, the length of the arbitrary cross section is smaller than that when the arbitrary point is located at the first end and that when the arbitrary point is located at the second end.
摘要翻译：热辅助磁记录头包括主极，波导和等离子体发生器。主极具有包括在轨道宽度方向上相对的第一端和第二端的前端面。主极的任意横截面，其通过前端面上的任意点并且垂直于介质相对表面和轨道宽度方向，具有与面向介质的表面垂直的方向的长度。当前端面上的任意点位于轨道宽度方向上的前端面的中心时，任意横截面的长度小于任意点位于第一端的长度，而当任意点位于第二端。

2. 发明授权

US08325570B1 Thermally-assisted magnetic recording head including a protruding member 有权
标题翻译：包括突出构件的热辅助磁记录头
公开(公告)号：US08325570B1
公开(公告)日：2012-12-04
申请号：US13363795
申请日：2012-02-01
申请人： Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Susumu Aoki , Takahiko Izawa , Makoto Isogai , Keita Kawamori , Takeshi Tsutsumi
发明人： Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Susumu Aoki , Takahiko Izawa , Makoto Isogai , Keita Kawamori , Takeshi Tsutsumi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes: a medium facing surface; a magnetic pole; a waveguide including a core and a cladding; a plasmon generator; and a protruding member. The protruding member is disposed between the medium facing surface and a front end face of the core facing toward the medium facing surface. The protruding member has a first end face located in the medium facing surface, and a second end face facing toward the front end face of the core and receiving light having propagated through the core and passed through the front end face. The protruding member is formed of a metal different from both a material forming the magnetic pole and a material forming the plasmon generator. The protruding member is heated and expanded by the light received at the second end face, so that the first end face gets protruded toward a magnetic recording medium.
摘要翻译：一种热辅助磁记录头包括：面向介质的表面; 磁极包括芯和包层的波导; 等离子体发生器; 和突出部件。突出构件设置在面向介质的表面和芯的前端面之间，面向面向介质的表面。突出构件具有位于介质相对表面中的第一端面和面向芯的前端面的第二端面，并且接收已经穿过芯并且穿过前端面的光。突出部件由不同于形成磁极的材料和形成等离子体激元发生器的材料形成。突出部件被第二端面所接收的光线加热膨胀，使得第一端面朝向磁记录介质突出。

3. 发明授权

US08570843B2 Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element 有权
标题翻译：热辅助磁头，磁头装置和包括记录元件和近场光产生元件的磁记录/再现装置
公开(公告)号：US08570843B2
公开(公告)日：2013-10-29
申请号：US13402318
申请日：2012-02-22
申请人： Kei Hirata , Kosuke Tanaka , Tsutomu Chou , Susumu Aoki , Makoto Isogai , Tetsuya Roppongi
发明人： Kei Hirata , Kosuke Tanaka , Tsutomu Chou , Susumu Aoki , Makoto Isogai , Tetsuya Roppongi
IPC分类号： G11B11/00
CPC分类号： G11B5/313 , G11B5/3116 , G11B5/314 , G11B5/3146 , G11B5/6088 , G11B2005/0021
摘要： The present invention provides a thermally assisted magnetic head with improved recording performance. The thermally assisted magnetic head includes a recording element and a near-field light generating element. The recording element includes a main pole appearing on a medium-facing surface, and a bit inversion starting region intended to be a maximum recording magnetic field generating position is formed at a leading edge of the main pole. The near-field light generating element is located on a leading side of the main pole and capable of creating a heating spot due to a near-field light on a near-field light generating end face appearing on the medium-facing surface. The bit inversion starting region is located within one-half of a diameter of the heating spot from a center of the heating spot.
摘要翻译：本发明提供了具有改进的记录性能的热辅助磁头。热辅助磁头包括记录元件和近场光产生元件。记录元件包括出现在面向中间的表面上的主极，并且在主极的前缘形成旨在成为最大记录磁场产生位置的位反转起始区。近场光产生元件位于主极的前导侧，并且能够在出现在面向中间的表面上的近场光产生端面上产生由于近场光产生的加热点。位反转起始区域位于加热点的直径从加热点的中心的一半的范围内。

4. 发明授权

US08462594B1 Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole 有权
标题翻译：能够防止传播的光被磁极吸收的热辅助磁记录头
公开(公告)号：US08462594B1
公开(公告)日：2013-06-11
申请号：US13405893
申请日：2012-02-27
申请人： Susumu Aoki , Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Takeshi Tsutsumi
发明人： Susumu Aoki , Kosuke Tanaka , Tetsuya Roppongi , Kei Hirata , Takeshi Tsutsumi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a medium facing surface, a magnetic pole, a waveguide including a core and a cladding, and a plasmon generator. The magnetic pole is located forward of the core in the direction of travel of a magnetic recording medium. The plasmon generator is disposed between the core and the magnetic pole. The core has an evanescent light generating surface facing toward the plasmon generator. The plasmon generator has a front end face located in the medium facing surface, a flat surface facing toward the'evanescent light generating surface, and first and second side surfaces that are at a distance from each other and are located farther from the evanescent light generating surface than is the flat surface.
摘要翻译：一种热辅助磁记录头包括面向介质的表面，磁极，包括芯和包层的波导，以及等离子体激元发生器。磁极位于磁芯的前方，位于磁记录介质的行进方向。等离子体发生器设置在芯和磁极之间。核心具有面向等离子体发生器的ev逝光产生表面。等离子体激元发生器具有位于介质面向表面中的前端面，面向朝向光生成表面的平坦表面，以及彼此相距一定距离并且远离产生ev逝光的第一和第二侧表面表面比平坦的表面。

5. 发明授权

US08472287B1 Thermally-assisted magnetic recording head having a groove for inserting into suspension 有权
标题翻译：热辅助磁记录头具有用于插入悬浮液的凹槽
公开(公告)号：US08472287B1
公开(公告)日：2013-06-25
申请号：US13402128
申请日：2012-02-22
申请人： Makoto Isogai , Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki
发明人： Makoto Isogai , Kosuke Tanaka , Daisuke Miyauchi , Susumu Aoki
IPC分类号： G11B11/00
CPC分类号： G11B5/10 , G11B5/4826 , G11B2005/0021
摘要： A thermally assisted magnetic head includes a suspension mounting arrangement facilitating insertion and positioning of a suspension and hardly causes displacement after insertion. The head further includes a slider and a light source unit. The slider has a recording element, a plasmon generating element, a waveguide and a reproducing element at one of opposite ends in a length direction. The recording element and waveguide are disposed adjacent to the plasmon generating element. The light source unit has a laser diode chip and a holder and is disposed on a back surface of the slider opposite from a medium-facing surface. The chip is supported by the holder and optically connected to the waveguide in a height direction. Further, the slider has a groove in a surface of a trailing-side end face for insertion of a suspension. The groove extends linearly along a width direction with bent parts at opposite open ends.
摘要翻译：热辅助磁头包括便于插入和定位悬架的悬挂安装装置，并且在插入之后几乎不引起位移。头部还包括滑块和光源单元。滑块在长度方向的相对端中的一端具有记录元件，等离子体发生元件，波导和再现元件。记录元件和波导设置在等离子体发生元件附近。光源单元具有激光二极管芯片和保持器，并且设置在与中间面相反的滑块的后表面上。芯片由保持器支撑并且在高度方向上与波导光学连接。此外，滑块在后侧端面的表面中具有用于插入悬架的凹槽。槽沿宽度方向线性延伸，弯曲部分在相对的开口端。

6. 发明授权

US08295015B2 Magnetoresistive element, thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly and magnetic disk device 有权
标题翻译：磁阻元件，薄膜磁头，磁头滑块，头万向节组件，头臂组件和磁盘设备
公开(公告)号：US08295015B2
公开(公告)日：2012-10-23
申请号：US12320878
申请日：2009-02-06
申请人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
发明人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
IPC分类号： G11B5/39
CPC分类号： G11B5/3932 , G01R33/098
摘要： The invention is devised to provide a magnetoresistive element that is hardly susceptible to harmful influence of unnecessary magnetic fields and noise of heat even when reduction in size is achieved to be adaptable to higher recording density, and therefore that is excellent in operational reliability. The magnetoresistive element includes a stacked structure including, in order: a magnetically pinned layer whose magnetization direction is fixed in a given direction; a non-magnetic layer; a magnetically free layer whose magnetization direction changes according to an external magnetic field; and an antiferromagnetic bias layer exchange-coupled with the magnetically free layer. The exchange-coupling magnetic field between the magnetically free layer and the antiferromagnetic bias layer is smaller than a saturation magnetic field of the magnetically free layer.
摘要翻译：本发明的目的在于提供一种磁阻元件，即使实现了适应于较高记录密度的尺寸减小，几乎不易受不必要的磁场的有害影响和热噪声的影响，因此具有优异的操作可靠性。磁阻元件包括层叠结构，其顺序包括：磁性固定层，其磁化方向在给定方向上固定; 非磁性层; 磁化方向根据外部磁场而变化的无磁性层; 和与磁性层交换耦合的反铁磁偏置层。磁性层和反铁磁偏置层之间的交换耦合磁场小于无磁层的饱和磁场。

7. 发明申请

US20100053819A1 Thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly, magnetic disk device and method of manufacturing thin film magnetic head 有权
标题翻译：薄膜磁头，磁头滑块，头万向架组件，头臂组件，磁盘装置及制造薄膜磁头的方法
公开(公告)号：US20100053819A1
公开(公告)日：2010-03-04
申请号：US12230781
申请日：2008-09-04
申请人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
发明人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
IPC分类号： G11B5/33
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B2005/3996
摘要： The invention is devised to provide a method of manufacturing a thin film magnetic head including a magnetoresistive element having higher reading performance. In manufacturing the thin film magnetic head, after forming an MR element 15, a pair of magnetic domain controlling layers 16 are formed by stacking a buffer layer 161, a magnetic bias layer 162 and a cap layer 163 in this order on both sides, in a track-width direction, of the MR element 15 via an insulating layer 14 respectively. Then, a cap layer 17 is formed so as to cover the upper surface of the MR element 15 and connect the pair of cap-layers 163. After that, a gap adjustment layer 18 and a top shielding layer 19 are formed in order so as to cover the pair of cap layers 163 and the cap layer 17, thereby a read head section 10 is completed. In this manner, the upper surface of the magnetic bias layer 162 is in contact only with the cap-layer 17 and the cap-layer 163, which are made of a material excellent in crystal lattice compatibility with the magnetic bias layer 162. As a result, the coercive force of the magnetic bias layer 162 can be increased. What is more, roughness of the undersurface of the top shielding layer 19 can be improved because of the presence of the cap layer 17.
摘要翻译：本发明旨在提供一种制造包括具有更高读取性能的磁阻元件的薄膜磁头的方法。在制造薄膜磁头时，在形成MR元件15之后，通过在两侧依次层叠缓冲层161，磁偏置层162和盖层163，形成一对磁畴控制层16 分别经由绝缘层14的MR元件15的轨道宽度方向。然后，形成盖层17，以覆盖MR元件15的上表面并连接一对盖层163.之后，依次形成间隙调整层18和顶部屏蔽层19，以便覆盖一对盖层163和盖层17，从而完成读头部10。以这种方式，磁偏置层162的上表面仅与盖层17和盖层163接触，盖层17和盖层163由与磁偏置层162的晶格相容性优异的材料制成。作为结果，可以增加磁偏置层162的矫顽力。此外，由于存在盖层17，所以可以提高顶部屏蔽层19的下表面的粗糙度。

8. 发明授权

US08724264B2 Thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly, magnetic disk device and method of manufacturing thin film magnetic head 有权
标题翻译：薄膜磁头，磁头滑块，头万向架组件，头臂组件，磁盘装置及制造薄膜磁头的方法
公开(公告)号：US08724264B2
公开(公告)日：2014-05-13
申请号：US12230781
申请日：2008-09-04
申请人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
发明人： Kei Hirata , Takayasu Kanaya , Kosuke Tanaka , Shinji Hara
IPC分类号： G11B5/33 , B82Y10/00 , B82Y25/00 , G11B5/39
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B2005/3996
摘要： A thin film magnetic head including a magnetoresistive element (MR) having higher reading performance. In manufacturing the thin film magnetic head, after forming an MR element, a pair of magnetic domain controlling layers are formed by stacking a buffer layer, a magnetic bias layer and a first cap layer in this order on both sides, in a track-width direction, of the MR element via an insulating layer, respectively. Then, a second cap layer is formed to cover the upper surface of the MR element and connect the pair of cap-layers. Then, a gap adjustment layer and a top shielding layer are formed to cover the pair of first cap layers and the second cap layer, completing a read head section.
摘要翻译：包括具有较高读取性能的磁阻元件（MR）的薄膜磁头。在制造薄膜磁头时，在形成MR元件之后，通过在两侧依次层叠缓冲层，磁偏置层和第一盖层而形成一对磁畴控制层，轨道宽度 MR元件的方向分别经由绝缘层。然后，形成第二盖层以覆盖MR元件的上表面并连接一对盖层。然后，形成间隙调整层和顶部屏蔽层以覆盖一对第一盖层和第二盖层，从而完成读取头部。

9. 发明授权

US08605387B2 Thermally-assisted magnetic recording head including a magnetic pole and a heating element 有权
标题翻译：包括磁极和加热元件的热辅助磁记录头
公开(公告)号：US08605387B2
公开(公告)日：2013-12-10
申请号：US13412109
申请日：2012-03-05
申请人： Kei Hirata , Kosuke Tanaka , Tetsuya Roppongi
发明人： Kei Hirata , Kosuke Tanaka , Tetsuya Roppongi
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T428/11
摘要： A thermally-assisted magnetic recording head includes a magnetic pole and a heating element. The magnetic pole has a front end face located in a medium facing surface. The magnetic pole forms on a track a distribution of write magnetic field strength that peaks at a first position on the track. The heating element forms on the track a distribution of temperature that peaks at a second position on the track. The first position is located on the trailing side relative to the second position. The front end face of the magnetic pole has a main portion and first and second extended portions. The first and second extended portions are extended in the track width direction from the main portion at positions on the leading side relative to the center of the main portion in the direction of travel of a magnetic recording medium.
摘要翻译：热辅助磁记录头包括磁极和加热元件。磁极具有位于介质相对表面中的前端面。磁道在轨道上形成写入磁场强度的分布，其在轨道上的第一位置处达到峰值。加热元件在轨道上形成在轨道上的第二位置处峰值的温度分布。第一位置位于相对于第二位置的后侧。磁极的前端面具有主要部分和第一和第二延伸部分。第一延伸部分和第二延伸部分在磁记录介质的行进方向上相对于主要部分的中心在前侧的位置处从主要部分在轨道宽度方向上延伸。

10. 发明申请

US20100202088A1 Magnetoresistive element, thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly and magnetic disk device 有权
标题翻译：磁阻元件，薄膜磁头，磁头滑块，头万向节组件，头臂组件和磁盘设备
公开(公告)号：US20100202088A1
公开(公告)日：2010-08-12
申请号：US12320878
申请日：2009-02-06
申请人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
发明人： Naoki Ohta , Hiroshi Yamazaki , Kosuke Tanaka , Takayasu Kanaya , Kei Hirata
IPC分类号： G11B5/33
CPC分类号： G11B5/3932 , G01R33/098
摘要： The invention is devised to provide a magnetoresistive element that is hardly susceptible to harmful influence of unnecessary magnetic fields and noise of heat even when reduction in size is achieved to be adaptable to higher recording density, and therefore that is excellent in operational reliability. The magnetoresistive element includes a stacked structure including, in order: a magnetically pinned layer whose magnetization direction is fixed in a given direction; a non-magnetic layer; a magnetically free layer whose magnetization direction changes according to an external magnetic field; and an antiferromagnetic bias layer exchange-coupled with the magnetically free layer. The exchange-coupling magnetic field between the magnetically free layer and the antiferromagnetic bias layer is smaller than a saturation magnetic field of the magnetically free layer.
摘要翻译：本发明的目的在于提供一种磁阻元件，即使实现了适应于较高记录密度的尺寸减小，几乎不易受不必要的磁场的有害影响和热噪声的影响，因此具有优异的操作可靠性。磁阻元件包括层叠结构，其顺序包括：磁性固定层，其磁化方向在给定方向上固定; 非磁性层; 磁化方向根据外部磁场而变化的无磁性层; 和与磁性层交换耦合的反铁磁偏置层。磁性层和反铁磁偏置层之间的交换耦合磁场小于无磁层的饱和磁场。

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