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    Near-field light generating device including near-field light generating element with edge part opposed to waveguide
    1.
    发明申请
    Near-field light generating device including near-field light generating element with edge part opposed to waveguide 有权
    近场光产生装置包括具有与波导相对的边缘部分的近场光产生元件

    公开(公告)号：US20100290323A1

    公开(公告)日：2010-11-18

    申请号：US12453508

    申请日：2009-05-13

    申请人： Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura ,  Seiichi Takayama

    发明人： Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura ,  Seiichi Takayama

    IPC分类号： G11B11/00 ,  G11B5/02 ,  G11B5/48 ,  C23C16/06

    CPC分类号： G11B5/314 ,  G11B5/4826 ,  G11B5/6005 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.

    摘要翻译： 近场光产生装置包括：具有在顶面开口的槽的波导; 包层，设置在波导的顶表面上，并且具有与槽邻接的开口; 容纳在所述开口中的近场光产生元件; 以及介于所述近场光产生元件与所述槽和所述开口中的所述波导和所述包覆层中的每一个之间的缓冲层。 近场光产生元件包括：相对于凹槽彼此间隔距离减小的第一和第二侧表面; 边缘部分，其将所述第一和第二侧表面彼此连接并且与所述凹槽相对，其间具有缓冲层; 以及位于边缘部的一端的近场光产生部，产生近场光。

    Near-field light generating device including near-field light generating element with edge part opposed to waveguide
    2.
    发明授权
    Near-field light generating device including near-field light generating element with edge part opposed to waveguide 有权
    近场光产生装置包括具有与波导相对的边缘部分的近场光产生元件

    公开(公告)号：US08089830B2

    公开(公告)日：2012-01-03

    申请号：US12453508

    申请日：2009-05-13

    申请人： Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura ,  Seiichi Takayama

    发明人： Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura ,  Seiichi Takayama

    IPC分类号： G11B11/00 ,  G11B5/02 ,  G11B5/48 ,  C23C16/06

    CPC分类号： G11B5/314 ,  G11B5/4826 ,  G11B5/6005 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A near-field light generating device includes: a waveguide having a groove that opens in the top surface; a clad layer disposed on the top surface of the waveguide and having an opening that is contiguous to the groove; a near-field light generating element accommodated in the opening; and a buffer layer interposed between the near-field light generating element and each of the waveguide and the clad layer in the groove and the opening. The near-field light generating element includes: first and second side surfaces that decrease in distance from each other toward the groove; an edge part that connects the first and second side surfaces to each other and is opposed to the groove with the buffer layer therebetween; and a near-field light generating part that lies at one end of the edge part and generates near-field light.

    摘要翻译： 近场光产生装置包括：具有在顶面开口的槽的波导; 包层，设置在波导的顶表面上，并且具有与槽邻接的开口; 容纳在所述开口中的近场光产生元件; 以及介于所述近场光产生元件与所述槽和所述开口中的所述波导和所述包覆层中的每一个之间的缓冲层。 近场光产生元件包括：相对于凹槽彼此间隔距离减小的第一和第二侧表面; 边缘部分，其将所述第一和第二侧表面彼此连接并且与所述凹槽相对，其间具有缓冲层; 以及位于边缘部的一端的近场光产生部，产生近场光。

    Near-field light generating device including near-field light generating element disposed over waveguide with buffer layer and adhesion layer therebetween
    3.
    发明授权
    Near-field light generating device including near-field light generating element disposed over waveguide with buffer layer and adhesion layer therebetween 有权
    近场光产生装置包括设置在波导上的缓冲层和其间的粘附层的近场光产生元件

    公开(公告)号：US08040761B2

    公开(公告)日：2011-10-18

    申请号：US12457886

    申请日：2009-06-24

    申请人： Keita Kawamori ,  Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura

    发明人： Keita Kawamori ,  Makoto Isogai ,  Susumu Aoki ,  Daisuke Miyauchi ,  Eiji Komura

    IPC分类号： G11B11/00

    CPC分类号： G11B5/3116 ,  G11B5/314 ,  G11B5/3166 ,  G11B5/6088 ,  G11B7/1387 ,  G11B2005/0005 ,  G11B2005/0021

    摘要： A near-field light generating device includes: a waveguide; a buffer layer disposed on the top surface of the waveguide; an adhesion layer that is formed by incompletely oxidizing a metal layer and disposed on the buffer layer; and a near-field light generating element disposed on the adhesion layer. The adhesion layer has a resistance-area product higher than that of the metal layer unoxidized and lower than that of a layer that is formed by completely oxidizing the metal layer. A layered structure consisting of the buffer layer, the adhesion layer and the near-field light generating element has a peel-test adhesive strength higher than that of a layered structure consisting of the buffer layer and the near-field light generating element.

    摘要翻译： 近场光产生装置包括：波导管; 设置在所述波导的顶面上的缓冲层; 通过不完全氧化金属层而形成并设置在缓冲层上的粘附层; 以及设置在粘附层上的近场光产生元件。 粘合层的电阻面积比未氧化的金属层的电阻面积乘积低于通过完全氧化金属层而形成的层的电阻率积。 由缓冲层，粘附层和近场光产生元件组成的分层结构的剥离测试粘合强度高于由缓冲层和近场光产生元件组成的层状结构的剥离测试粘合强度。

    Thermally-assisted magnetic recording head having a groove for inserting into suspension
    5.
    发明授权
    Thermally-assisted magnetic recording head having a groove for inserting into suspension 有权
    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。

    Thermally-assisted magnetic recording head including a protruding member
    6.
    发明授权
    Thermally-assisted magnetic recording head including a protruding member 有权
    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。

    Thermally-assisted magnetic recording head
    7.
    发明授权
    Thermally-assisted magnetic recording head 有权
    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。

    Thermally assisted magnetic head, magnetic head device and magnetic recording/reproducing apparatus including a recording element and a near-field light generating element
    8.
    发明授权
    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
    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。