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41. 发明申请

US20080158709A1 Thermally assisted magnetic head, head gimbal assembly, and hard disk drive 有权
标题翻译：热辅助磁头，磁头万向节组件和硬盘驱动器
公开(公告)号：US20080158709A1
公开(公告)日：2008-07-03
申请号：US12003452
申请日：2007-12-26
申请人： Kosuke Tanaka , Koji Shimazawa , Eiji Komura
发明人： Kosuke Tanaka , Koji Shimazawa , Eiji Komura
IPC分类号： G11B5/02
CPC分类号： G11B5/02 , G11B5/314 , G11B2005/0002 , G11B2005/0021
摘要： A thermally assisted magnetic head comprises: a slider substrate, a first surface located opposite to a medium-facing surface, and side surfaces located between the medium-facing surface and the first surface; a magnetic head portion having a near-field light generator on the medium-facing surface side, and a magnetic recording element, the magnetic head portion being fixed to one of the side surfaces; and a laser diode element a relative position of which to the slider substrate is fixed so that emitted light thereof can reach the near-field light generator; a relation of λin
摘要翻译：一种热辅助磁头包括：滑块基板，与介质相对表面相对的第一表面和位于介质相对表面和第一表面之间的侧表面; 磁头部分，其在面向介质的表面侧上具有近场光产生器;以及磁记录元件，磁头部分固定在一个侧表面上; 并且激光二极管元件的相对位置固定到滑块基板上，使得其发射光可以到达近场光发生器; 满足lambdain

42. 发明授权

US08400885B2 Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device 有权
标题翻译：热辅助磁记录头，磁头万向架组件和磁记录装置
公开(公告)号：US08400885B2
公开(公告)日：2013-03-19
申请号：US13097133
申请日：2011-04-29
申请人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Tsutomu Chou , Eiji Komura
发明人： Daisuke Miyauchi , Tetsuya Roppongi , Kosuke Tanaka , Tsutomu Chou , Eiji Komura
IPC分类号： G11B13/08
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes: a pole that generates a writing magnetic field from an end surface that forms a part of an air bearing surface that opposes a magnetic recording medium; a waveguide that propagates light to excite surface plasmon; and a plasmon generator that is provided between the pole and the waveguide and that generates near-field light from a near-field light generating end surface that forms a part of the air bearing surface by coupling with the light in a surface plasmon mode. The plasmon generator includes a flat plate part and a projection part that projects from the flat plate part to the waveguide side and is provided closer to a trailing side than the pole is.
摘要翻译：一种热辅助磁记录头，包括：从端面产生书写磁场的极，所述磁场形成与磁记录介质相对的空气轴承表面的一部分; 将光传播到激发表面等离子体激元的波导; 以及等离子体发生器，其设置在所述极与所述波导之间，并且通过以表面等离子体模式与所述光结合而从形成所述空气轴承表面的一部分的近场光产生端面产生近场光。等离子体发生器包括平板部分和突出部分，其从平板部分突出到波导侧并且设置成比杆靠后的后侧。

43. 发明授权

US08369203B2 Thermally-assisted magnetic recording head having concave core at light entrance surface 有权
标题翻译：热辅助磁记录头在光入射面具有凹芯
公开(公告)号：US08369203B2
公开(公告)日：2013-02-05
申请号：US12659095
申请日：2010-02-25
申请人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka
发明人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka
IPC分类号： G11B7/00
CPC分类号： G02B6/1226 , B82Y20/00 , G02B6/1228 , G11B5/314 , G11B2005/0005 , G11B2005/0021
摘要： An optical waveguide of the present invention is an optical waveguide in order to directly introduce light beams emitted from a light emitting element. In a core that is a waveguide through which light propagates, a concave part is formed that is a depression in a light incident end surface that is one side where light enters. Therefore, an optical waveguide is realized that can obtain a large optical coupling efficiency is possible by the operation of phase alignment in the concave part.
摘要翻译：本发明的光波导是光波导，用于直接引入从发光元件发射的光束。在作为光传播的波导的芯中，形成作为光入射的一侧的光入射端面的凹部的凹部。因此，通过在凹部中的相位对准的操作，可以获得可以获得大的光耦合效率的光波导。

44. 发明授权

US08335052B2 Plasmon antenna for thermally assisted magnetic head 有权
标题翻译：用于热辅助磁头的等离子体天线
公开(公告)号：US08335052B2
公开(公告)日：2012-12-18
申请号：US12237767
申请日：2008-09-25
申请人： Seiichi Takayama , Eiji Komura , Yasuhiro Ito , Kosuke Tanaka , Koji Shimazawa
发明人： Seiichi Takayama , Eiji Komura , Yasuhiro Ito , Kosuke Tanaka , Koji Shimazawa
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A plasmon antenna of the present invention is used in a thermally assisted magnetic head that includes: a medium-facing surface set, parallel to an XY plane; a magnetic pole for writing, extending toward the medium-facing surface, and a plasmon antenna comprising a pair of small metal bodies irradiated with excitation light for near-field light generation propagating in a Z-axis direction. Respective corners of the small metal bodies are spaced apart opposite each other along a TE mode direction of the excitation light. A distance between the corners gives the shortest distance between the small metal bodies, and a distance from each corner to the leading end of the magnetic pole gives a shortest distance from the small metal bodies to the leading end.
摘要翻译：本发明的等离子体天线用于热辅助磁头，其包括：平行于XY平面的面向中间的表面组; 用于写入的磁极，朝向介质中的表面延伸;以及等离子体激元，其包括用激励光照射的一对小的金属体，用于沿Z轴方向传播的近场光产生。小金属体的各个角部沿着激发光的TE模式方向相互间隔开。拐角之间的距离给出了小金属体之间的最短距离，从磁极的每个拐角到前端的距离从小金属体到前端都具有最短的距离。

45. 发明授权

US08315129B1 Thermally-assisted magnetic recording head, head gimbal assembly and magnetic recording device 有权
标题翻译：热辅助磁记录头，磁头万向架组件和磁记录装置
公开(公告)号：US08315129B1
公开(公告)日：2012-11-20
申请号：US13297375
申请日：2011-11-16
申请人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Kosuke Tanaka
发明人： Eiji Komura , Koji Shimazawa , Tsutomu Chou , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head that allows even steeper magnetization reversal between adjacent magnetic domains of a magnetic recording medium and that satisfies the demands of high SN ratio and high recording density is provided. A thermally-assisted magnetic recording head includes a pole that generates a writing magnetic field, a waveguide through which light for exciting surface plasmon propagates, and a plasmon generator that generates near-field light. The waveguide is arranged on a back side of the pole, the plasmon generator has a plane part and a projection part that is projected from the plane part to the waveguide side and that opposes the pole and the waveguide with a predetermined gap, and a projection part opposing surface that opposes the projection part in the pole is configured so as to be distant from the projection part as approaching toward the back side.
摘要翻译：提供一种热辅助磁记录头，其允许在磁记录介质的相邻磁畴之间更加陡峭的磁化反转，并且满足高SN比和高记录密度的要求。热辅助磁记录头包括产生书写磁场的磁极，用于激发表面等离子体激元传播的光的波导和产生近场光的等离子体发生器。波导布置在极的背侧，等离子体发生器具有从平面部分到波导侧突出并且以预定间隙与极和波导相对的平面部分和突出部分，以及突出部与杆的突出部抵接的部分对置面被配置为当朝向后侧接近时远离突出部。

46. 发明申请

US20120275280A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY AND MAGNETIC RECORDING DEVICE 有权
标题翻译：热辅助磁记录头，磁头组件和磁记录装置
公开(公告)号：US20120275280A1
公开(公告)日：2012-11-01
申请号：US13097133
申请日：2011-04-29
申请人： Daisuke MIYAUCHI , Tetsuya Roppongi , Kosuke Tanaka , Tsutomu Chou , Eiji Komura
发明人： Daisuke MIYAUCHI , Tetsuya Roppongi , Kosuke Tanaka , Tsutomu Chou , Eiji Komura
IPC分类号： G11B13/08
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes: a pole that generates a writing magnetic field from an end surface that forms a part of an air bearing surface that opposes a magnetic recording medium; a waveguide that propagates light to excite surface plasmon; and a plasmon generator that is provided between the pole and the waveguide and that generates near-field light from a near-field light generating end surface that forms a part of the air bearing surface by coupling with the light in a surface plasmon mode. The plasmon generator includes a flat plate part and a projection part that projects from the flat plate part to the waveguide side and is provided closer to a trailing side than the pole is.
摘要翻译：一种热辅助磁记录头，包括：从端面产生书写磁场的极，所述磁场形成与磁记录介质相对的空气轴承表面的一部分; 将光传播到激发表面等离子体激元的波导; 以及等离子体发生器，其设置在所述极和所述波导之间，并且通过以表面等离子体模式与所述光结合而从形成所述空气轴承表面的一部分的近场光产生端面产生近场光。等离子体发生器包括平板部分和突出部分，其从平板部分突出到波导侧，并且设置成比杆极靠近尾部。

47. 发明授权

US08295003B2 Thermal assisted head using curved wave guide 有权
标题翻译：热辅助头使用弯曲波导
公开(公告)号：US08295003B2
公开(公告)日：2012-10-23
申请号：US12786915
申请日：2010-05-25
申请人： Tsutomu Chou , Seiichi Takayama , Eiji Komura
发明人： Tsutomu Chou , Seiichi Takayama , Eiji Komura
IPC分类号： G11B5/02 , G02B6/26 , G02B6/42 , G02B6/10
CPC分类号： G11B5/314 , G02B6/107 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A curved waveguide is a curved waveguide that propagates laser light entering from the laser diode as propagating light. The curved waveguide includes a core that is curved in one direction where the propagating light can be propagated and that includes outer surfaces along a propagating direction of the propagating light defined by four surfaces including first and second planar surfaces that curve in respective planar surfaces and that are positioned to face each other, and inside and outside curved surfaces that connect the first and second planar surfaces: an outside metal cladding that is positioned in a direction orthogonal to an oscillation direction of an electric field of the propagating light in a cross section orthogonal to the propagating direction of the propagating light and along the outside curved surface of the core, that is made of gold, silver, copper or aluminum, or that is primarily composed of one component of these materials; and a cladding layer that covers the first and second planar surfaces and the outside metal clad.
摘要翻译：弯曲波导是将从激光二极管进入的激光传播成传播光的弯曲波导。弯曲波导包括在传播光可以传播的一个方向上弯曲的芯，并且包括沿着由四个表面限定的传播光的传播方向的外表面，该四个表面包括在相应的平面中曲线的第一和第二平面表面，并且定位成彼此面对，以及连接第一和第二平面的内表面和外表面：外侧金属包层，其在与正交于横截面正交的传播光的电场的振荡方向正交的方向上传播光的传播方向和沿金属，银，铜或铝制成的芯的外部弯曲表面，或主要由这些材料的一种组分组成; 以及覆盖第一和第二平坦表面和外部金属包层的包覆层。

48. 发明申请

US20120230168A1 HEAT-ASSISTED 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：US20120230168A1
公开(公告)日：2012-09-13
申请号：US13045992
申请日：2011-03-11
申请人： Takahiko IZAWA , Tsutomu CHOU , Eiji KOMURA , Kosuke TANAKA
发明人： Takahiko IZAWA , Tsutomu CHOU , Eiji KOMURA , Kosuke TANAKA
IPC分类号： G11B13/04
CPC分类号： G11B5/314 , G02B6/10 , G11B5/3106 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： A heat-assisted magnetic write head includes a magnetic pole having an end surface exposed at an air bearing surface, a waveguide extending toward the air bearing surface to propagate light, a first pair of clads made of a first dielectric material having a refractive index lower than that of the waveguide, and sandwiching the waveguide in a track width direction, and a second pair of clads made of a second dielectric material having a refractive index lower than that of the first dielectric material, and sandwiching the waveguide in a thickness direction orthogonal to the track width direction. Further, the heat-assisted magnetic write head may include, between the magnetic pole and the waveguide, a plasmon generator generating near-field light from the air bearing surface, based on light propagating through the waveguide.
摘要翻译：一种热辅助磁性写头包括：具有在空气轴承表面露出的端面的磁极，朝向空气支承表面延伸以传播光的波导;由折射率较低的第一介电材料制成的第一对包层和波导夹着波导宽度方向的第二对夹层，以及折射率低于第一介电体的折射率的第二介电材料构成的第二对夹层，并将波导夹在厚度方向正交到轨道宽度方向。此外，热辅助磁写头可以包括在磁极和波导之间的等离子体发生器，其基于通过波导传播的光产生从空气轴承表面产生近场光。

49. 发明申请

US20120213041A1 HEAT-ASSISTED 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：US20120213041A1
公开(公告)日：2012-08-23
申请号：US13029555
申请日：2011-02-17
申请人： Kosuke TANAKA , Tsutomu CHOU , Eiji KOMURA , Takahiko IZAWA
发明人： Kosuke TANAKA , Tsutomu CHOU , Eiji KOMURA , Takahiko IZAWA
IPC分类号： G11B13/08
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： A heat-assisted magnetic write head includes: a magnetic pole having an end surface exposed to an air bearing surface; a waveguide extending toward the air bearing surface to propagate light; a plasmon generator provided between the magnetic pole and the waveguide and generating near-field light from the air bearing surface, based on the light propagated through the waveguide; and a clad provided to surround both the waveguide and the plasmon generator collectively, the clad having a refractive index lower than that of the waveguide, and exhibiting a thermal conductivity higher than that of the waveguide. The clad may be provided to collectively surround the magnetic pole, as well.
摘要翻译：一种热辅助磁写头包括：具有暴露于空气轴承表面的端面的磁极; 波导向空气轴承表面延伸以传播光; 基于通过波导传播的光，设置在磁极和波导之间并产生来自空气轴承表面的近场光的等离子体激元发生器; 以及包围所述波导和所述等离子体发生器两者的集合体，所述包层的折射率低于所述波导的折射率，并且具有高于所述波导的导热率。也可以提供包层以集中地围绕磁极。

50. 发明授权

US08248890B2 Thermally-assisted head including surface-plasmon resonant optical system 有权
标题翻译：热辅助头包括表面等离子体共振光学系统
公开(公告)号：US08248890B2
公开(公告)日：2012-08-21
申请号：US12946196
申请日：2010-11-15
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
IPC分类号： G11B7/00 , G11B7/08
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/105 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： Provided is a surface plasmon resonating optical system emitting near-field light (NF-light) with a higher light density. The system comprises: a waveguide through which a light for exciting surface plasmon propagates; a plasmon generator that couples with the light in a surface plasmon mode and emits NF-light from its NF-light generating end surface; and a resonator mirror that reflects the excited surface plasmon, provided on the side of the plasmon generator opposite to the NF-light generating end surface. In the system, the excited surface plasmon can be amplified by using a resonator structure while reducing the length of the plasmon generator to reduce absorption of surface plasmon and prevent overheating of the plasmon generator.
摘要翻译：提供了具有较高光密度的发射近场光（NF-光）的表面等离子体共振光学系统。该系统包括：用于激发表面等离子体激元的光传播的波导; 等离子体发生器，其以表面等离子体模式耦合光并从其NF光产生端表面发射NF光; 以及反射激发的表面等离子体的谐振镜，设置在等离子体发生器的与NF发光端面相对的一侧。在该系统中，可以通过使用谐振器结构来放大激发的表面等离子体激元，同时减少等离子体发生器的长度以减少表面等离子体的吸收并防止等离子体发生器的过热。

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