专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US07821732B2 Thermally assisted magnetic head having an asymmetric plasmon antenna and manufacturing method thereof 有权
公开(公告)号：US07821732B2
公开(公告)日：2010-10-26
申请号：US12237810
申请日：2008-09-25
申请人： Eiji Komura , Seiichi Takayama , Satoshi Tomikawa , Kosuke Tanaka , Koji Shimazawa
发明人： Eiji Komura , Seiichi Takayama , Satoshi Tomikawa , Kosuke Tanaka , Koji Shimazawa
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/4866 , G11B2005/001 , G11B2005/0021
摘要： A thermally assisted magnetic head according to the present invention includes: a medium-facing surface, a main magnetic pole provided on the medium-facing surface, and a plasmon antenna provided on the medium-facing surface in the vicinity of the main magnetic pole, wherein the plasmon antenna is shaped as a triangular flat plate having first, second and third corners, such that the distance from the first corner to the main magnetic pole is shorter than the distance from the second corner to the main magnetic pole and the distance from the third corner to the main magnetic pole, and the interior angle α of the first corner, the interior angle β of the second corner and the interior angle γ of the third corner satisfy relationships α

32. 发明授权

US08393074B1 Method of manufacturing thermally-assisted magnetic recording head and alignment apparatus 有权
标题翻译：制造热辅助磁记录头和对准装置的方法
公开(公告)号：US08393074B1
公开(公告)日：2013-03-12
申请号：US13267601
申请日：2011-10-06
申请人： Seiichi Takayama , Koji Shimazawa , Shinji Hara , Yasuhiro Ito , Nobuyuki Mori , Ryo Hosoi , Kazuaki Takanuki , Youichi Ando , Chimoto Sugiyama
发明人： Seiichi Takayama , Koji Shimazawa , Shinji Hara , Yasuhiro Ito , Nobuyuki Mori , Ryo Hosoi , Kazuaki Takanuki , Youichi Ando , Chimoto Sugiyama
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0021 , Y10T29/49025 , Y10T29/49041 , Y10T29/49043 , Y10T29/4905 , Y10T29/5313 , Y10T29/53165
摘要： A method of manufacturing a thermally-assisted magnetic recording head includes: providing a light source unit including a laser diode; providing a slider having a thermally-assisted magnetic recording head section thereon, the thermally-assisted magnetic recording head section including a magnetic pole, an optical waveguide, and a plasmon generator, the magnetic pole and the optical waveguide both extending toward an air bearing surface, the plasmon generator being located between the magnetic pole and the optical waveguide; driving the laser diode to allow a light beam to be emitted therefrom, the light beam including both a TE polarization component and a TM polarization component; performing an alignment between the light source unit and the thermally-assisted magnetic recording head section, based on a light intensity distribution of the TE polarization component in the light beam which has been emitted from the laser diode and then passed through the optical waveguide; and bonding the light source unit to the slider after the alignment is completed.
摘要翻译：一种制造热辅助磁记录头的方法包括：提供包括激光二极管的光源单元; 提供一种在其上具有热辅助磁记录头部分的滑块，所述热辅助磁记录头部分包括磁极，光波导和等离子体发生器，所述磁极和光波导均朝空气轴承表面延伸所述等离子体发生器位于所述磁极和所述光波导之间; 驱动激光二极管以允许从其发射光束，所述光束包括TE偏振分量和TM偏振分量; 基于从激光二极管发射的光束中的TE偏振分量的光强度分布然后通过光波导，执行光源单元和热辅助磁记录头部之间的对准; 并且在对准完成之后将光源单元接合到滑块。

33. 发明授权

US08023225B2 Thermally assisted magnetic head with optical waveguide 有权
标题翻译：带光波导的热辅助磁头
公开(公告)号：US08023225B2
公开(公告)日：2011-09-20
申请号：US12176127
申请日：2008-07-18
申请人： Koji Shimazawa , Hiraku Hirabayashi , Kosuke Tanaka , Eiji Komura
发明人： Koji Shimazawa , Hiraku Hirabayashi , Kosuke Tanaka , Eiji Komura
IPC分类号： G11B7/135
CPC分类号： G11B5/314 , G11B2005/001 , G11B2005/0021
摘要： While an emitting position of light from an optical waveguide and a magnetic pole end part are made closer to each other, high-density writing onto a magnetic recording medium is realized.A thermally assisted magnetic head comprises a main magnetic pole layer having a magnetic pole end part exposed at a medium-opposing surface opposing a magnetic disk, and an optical waveguide for deflecting laser light incident thereon into a laminating direction. The main magnetic pole layer is positioned on a side where the light is deflected by the optical waveguide. The magnetic pole end part projects to the side where the light is deflected by the optical waveguide. The optical waveguide projects more than the magnetic pole end part on the medium-opposing surface side.
摘要翻译：虽然使来自光波导和磁极端部的光的发射位置彼此靠近，但是实现了对磁记录介质的高密度写入。热辅助磁头包括具有在与磁盘相对的介质相对表面处露出的磁极端部的主磁极层和用于将入射到其上的激光偏转成层叠方向的光波导。主磁极层位于光被光波导偏转的一侧。磁极端部突出到光被光波导偏转的一侧。光波导在介质相对表面侧上突出超过磁极端部。

34. 发明申请

US20110205661A1 Optical waveguide and thermal assist magnetic recording head therewith 有权
标题翻译：光波导和热辅助磁记录头
公开(公告)号：US20110205661A1
公开(公告)日：2011-08-25
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： G11B5/02 , G02F1/035 , G02B6/00
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。

35. 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

36. 发明申请

US20110235478A1 WAVE GUIDE THAT ATTENUATES EVANESCENT LIGHT OF HIGHER ORDER TM MODE 有权
标题翻译：浪潮导致更高级TM模式的衰减
公开(公告)号：US20110235478A1
公开(公告)日：2011-09-29
申请号：US12729560
申请日：2010-03-23
申请人： Eiji KOMURA , Shinji Hara , Seiichi Takayama , Koji Shimazawa
发明人： Eiji KOMURA , Shinji Hara , Seiichi Takayama , Koji Shimazawa
IPC分类号： G11B11/00 , G02B6/26
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B2005/0021
摘要： A waveguide has a core through which laser light can propagate in a TM mode, that has a rectangular cross section perpendicular to a propagative direction of the laser light, and through which the laser light can propagate in a fundamental mode in which only one portion exists on the cross section of the core where a light intensity of the laser light becomes maximal, and a higher order mode in which two or more portions exist where the light intensity becomes maximal, a clad surrounding the core, and a light absorbing element in the clad, and wherein a distance between the light absorbing element and the core is shorter than a penetration length of evanescent light in the higher order mode, but is longer than a penetration length of evanescent light in the fundamental mode.
摘要翻译：波导具有核，激光可以以TM模式传播，其具有与激光的传播方向垂直的矩形横截面，激光可以以仅存在一个部分的基本模式传播在激光的光强度变得最大的核心的横截面上，以及存在光强度变得最大的两个以上部分的高阶模式，围绕芯的包层，以及光吸收元件并且其中所述光吸收元件和所述芯之间的距离比所述高阶模式中的渐逝光的穿透长度短，但是比所述基模中的渐逝光的穿透长度更长。

37. 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。

38. 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。

39. 发明授权

US08077556B2 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：US08077556B2
公开(公告)日：2011-12-13
申请号：US12034401
申请日：2008-02-20
申请人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka
发明人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka
IPC分类号： G11B11/24
CPC分类号： G11B5/314 , G11B2005/0021
摘要： A thermally assisted magnetic head has a medium-facing surface facing a magnetic recording medium; a near-field light generator disposed on a light exit face in the medium-facing surface; a magnetic recording element located adjacent to the near-field light generator; and a light emitting element disposed so that emitted light thereof reaches the near-field light generator; the near-field light generator is comprised of a cusp portion and a base portion; when λin represents a wavelength of the emitted light from the light emitting element immediately before the emitted light reaches the near-field light generator, an intensity of near-field light generated when the material forming the cusp portion is irradiated with the light of the wavelength λin is stronger than an intensity of near-field light generated when the material forming the base portion is irradiated with the light of the wavelength λin.
摘要翻译：热辅助磁头具有面向磁记录介质的中等面向表面; 近场光发生器，其布置在所述介质面向表面中的光出射面上; 与所述近场光发生器相邻的磁记录元件; 以及发光元件，其发射光到达近场光发生器; 近场光发生器由尖部和基部构成; 当λin表示在发射光到达近场光发生器之前来自发光元件的发射光的波长时，当形成尖端部分的材料被波长的光照射时产生的近场光的强度当用波长λin的光照射形成基部的材料时，λin比产生的近场光的强度强。

40. 发明授权

US07835102B2 Heat assisted magnetic recording head comprising plasmon antenna with flat surfaces opposed to medium 有权
标题翻译：热辅助磁记录头包括具有与介质相对的平坦表面的等离子体天线
公开(公告)号：US07835102B2
公开(公告)日：2010-11-16
申请号：US12239141
申请日：2008-09-26
申请人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
发明人： Seiichi Takayama , Eiji Komura , Kosuke Tanaka , Daisuke Miyauchi , Koji Shimazawa
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/3116 , G11B7/122 , G11B7/1387 , G11B11/10536 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a plasmon antenna in which a near-field light having a sufficient intensity is generated only in a desired location. The plasmon antenna comprises an end surface on a side where a near-field light is generated; the end surface is flat and has a shape with at least three vertexes or rounded corners; and an end surface of the plasmon antenna which is opposite to the flat end surface and receives light, is inclined with respect to the flat end surface so as to become closer to the flat end surface toward one of the at least three vertexes or rounded corners. When the light-receiving end surface of the plasmon antenna is irradiated with the light, a near-field light having a sufficient intensity can be generated at only the vertex or rounded corner toward which the entire plasmon antenna becomes thinner.
摘要翻译：提供了一种等离子体激元天线，其中仅在期望的位置产生具有足够强度的近场光。等离子体激元天线包括在产生近场光的一侧上的端面; 端面平坦，具有至少三个顶点或圆角的形状; 以及等离子体激元天线的与平坦端面相对并且接收光的端面相对于平坦端面倾斜，以朝向至少三个顶点或圆角中的一个更接近平坦端面。当等离子体激元的光接收端面用光照射时，只能在整个等离子体天线变薄的顶点或圆角处产生具有足够强度的近场光。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式