专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 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。

52. 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。

53. 发明申请

US20100238580A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD WITH LIGHT SOURCE ON ELEMENT-INTEGRATION SURFACE 有权
标题翻译：热辅助磁记录头，光源集成表面
公开(公告)号：US20100238580A1
公开(公告)日：2010-09-23
申请号：US12407420
申请日：2009-03-19
申请人： Koji Shimazawa , Eiji Komura
发明人： Koji Shimazawa , Eiji Komura
IPC分类号： G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which a light source with a sufficient power is disposed in the element-integration surface to improve mass-productivity. The head comprises, in an element-integration surface of a substrate: a light source; a waveguide for propagating light from the light source; and a magnetic pole for generating write field. Further, the edge along optical axis of the light source is set to be parallel with or inclined from the edge on the opposed-to-medium surface side of the element-integration surface. In the head, since the light source is disposed in the element-integration surface, the construction of the optical system can be completed in the stage of a wafer process. This construction can be relatively facilitated and simplified; thus, mass-productivity in the head manufacturing can be improved. Further, a light source with a sufficient power (cavity length) can be disposed in the element-integration surface.
摘要翻译：提供一种热辅助磁记录头，其中具有足够功率的光源设置在元件整合表面中以提高批量生产率。头部包括在基板的元件集成表面中：光源; 用于从光源传播光的波导; 以及用于产生写入场的磁极。此外，沿着光源的光轴的边缘被设定为与元件整合表面的相对中介表面侧上的边缘平行或倾斜。在磁头中，由于光源设置在元件集成表面中，所以可以在晶片工艺的阶段完成光学系统的结构。这种结构可以相对便利和简化; 因此，可以提高头部制造中的批量生产率。此外，具有足够功率（空腔长度）的光源可以设置在元件集成表面中。

54. 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

55. 发明授权

US08424191B2 Method for manufacturing thermally-assisted magnetic recording head by semi-active alignment 有权
标题翻译：半主动对准制造热辅助磁记录头的方法
公开(公告)号：US08424191B2
公开(公告)日：2013-04-23
申请号：US12648079
申请日：2009-12-28
申请人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
发明人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
IPC分类号： G11B11/12
CPC分类号： G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/001 , G11B2005/0021 , Y10T29/49032 , Y10T29/49037 , Y10T29/49055 , Y10T29/49059
摘要： A method for manufacturing a thermally-assisted magnetic recording head is provided, in which joined are: a light source unit that includes a light source having a surface including a light-emission center on the joining surface side of a unit substrate; and a slider that includes an optical system having a light-receiving end surface reaching a back surface opposite to the opposed-to-medium surface. This method utilizes “semi-active alignment” that uses an alignment light, and comprises steps of: causing a light to enter the light source from a surface opposite to the light-emission center; detecting the light that has passed through the light source and is emitted from the light-emission center to align the light-emission center with the light-receiving end surface of the slider; and bonding the light source unit to the slider. This manufacturing method can achieve the alignment with a sufficiently high alignment accuracy in a short processing time.
摘要翻译：提供了一种用于制造热辅助磁记录头的方法，其中连接有：光源单元，其包括在单元基板的接合表面侧上具有包括发光中心的表面的光源; 以及包括光学系统的滑块，所述光学系统具有到达相对于中间表面的后表面的光接收端面。该方法采用使用对准光的“半主动对准”，其包括以下步骤：使光从与发光中心相反的表面进入光源; 检测已经通过光源并从发光中心射出的光，使发光中心与滑块的受光端面对准; 并将光源单元接合到滑块。该制造方法可以在短的处理时间内以足够高的对准精度实现对准。

56. 发明授权

US08243558B2 Thermally assisted magnetic head, head gimbal assembly, and hard disk apparatus 有权
标题翻译：热辅助磁头，磁头万向节组件和硬盘设备
公开(公告)号：US08243558B2
公开(公告)日：2012-08-14
申请号：US12363053
申请日：2009-01-30
申请人： Eiji Komura , Koji Shimazawa
发明人： Eiji Komura , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/102 , G11B2005/0005 , G11B2005/0021
摘要： A thermally assisted magnetic head includes a main magnetic pole for writing and a near-field light generator provided near the main magnetic pole, the near-field light generator having a non-magnetic base metal layer, a non-magnetic upper metal layer, an intermediate insulating layer interposed between the base metal layer and the upper metal layer, and the base metal layer having a V-shaped groove and also the upper metal layer having a projection facing the deepest part in the groove of the base metal layer, in a vertical cross-section parallel to a medium facing surface.
摘要翻译：热辅助磁头包括用于写入的主磁极和设置在主磁极附近的近场光发生器，具有非磁性基底金属层的近场光发生器，非磁性上金属层，介于基底金属层和上部金属层之间的中间绝缘层，以及具有V形槽的基底金属层，以及具有与基底金属层的沟槽中的最深部分相对的突起的上部金属层，垂直横截面平行于面向介质的表面。

57. 发明授权

US08065786B2 Manufacturing method of heat-assisted magnetic head constituted of slider and light source unit 有权
标题翻译：由滑块和光源单元构成的热辅助磁头制造方法
公开(公告)号：US08065786B2
公开(公告)日：2011-11-29
申请号：US12108234
申请日：2008-04-23
申请人： Koji Shimazawa , Yasuhiro Ito , Eiji Komura , Seiichi Takayama , Kosuke Tanaka
发明人： Koji Shimazawa , Yasuhiro Ito , Eiji Komura , Seiichi Takayama , Kosuke Tanaka
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/314 , G11B5/102 , G11B5/3163 , G11B2005/0005 , G11B2005/0021 , Y10T29/49025 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49052 , Y10T156/1062
摘要： Provided is a manufacturing method of heat-assisted magnetic recording head, in which a light source unit can be easily joined to a slider with sufficiently high accuracy, under avoiding the excessive mechanical stress. The manufacturing method comprises the steps of: moving relatively the light source unit and the slider, while applying a sufficient voltage between an upper electrode of the light source and an electrode layer provided in the slider; and setting the light source unit and the slider in desired positions in a direction perpendicular to the element-integration surface of the slider substrate. The desired positions are positions where the light source just emits due to a surface contact between: the protruded portion of the lower surface of the light source; and the upper surface of the electrode layer, which is a portion of the wall surface of a step formed on the head part.
摘要翻译：提供一种热辅助磁记录头的制造方法，其中光源单元可以以足够高的精度容易地接合到滑块，以避免过度的机械应力。该制造方法包括以下步骤：在光源的上电极和设置在滑块中的电极层之间施加足够的电压，相对移动光源单元和滑块; 以及将光源单元和滑块设置在与滑动器基板的元件集成表面垂直的方向上的期望位置。期望的位置是由于光源的下表面的突出部分之间的表面接触而光源刚刚发射的位置; 以及作为形成在头部上的台阶的壁面的一部分的电极层的上表面。

58. 发明授权

US08000175B2 Thermally assisted magnetic head having a semiconductor surface-emitting laser 有权
标题翻译：具有半导体表面发射激光器的热辅助磁头
公开(公告)号：US08000175B2
公开(公告)日：2011-08-16
申请号：US12363010
申请日：2009-01-30
申请人： Koji Shimazawa , Eiji Komura , Seiichi Takayama
发明人： Koji Shimazawa , Eiji Komura , Seiichi Takayama
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/02 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A thermally assisted magnetic head includes: a slider having a medium-facing surface; and a surface-emitting semiconductor laser. The slider has: a slider substrate, on which part of the medium-facing surface is formed; and a magnetic head portion, on which another part of the medium-facing surface is formed, and which has a first surface in contact with a head stacking surface of the slider substrate and a second surface opposite the first surface. The magnetic head portion has: a main magnetic pole that generates a write magnetic field from an end face on the side of the medium-facing surface; an optical waveguide core extending along the first surface and having a light exit surface at the medium-facing surface; and a diffraction grating, which is provided in the optical waveguide core or further towards the second surface than the optical waveguide core, and the refractive index of which varies periodically along the direction in which the optical waveguide core extends. The surface-emitting semiconductor laser is provided opposing the second surface so that emission light from the surface-emitting semiconductor laser is incident onto the diffraction grating, and the diffraction grating causes at least part of emission light from the surface-emitting semiconductor laser to be optically coupled to the optical waveguide core.
摘要翻译：热辅助磁头包括：具有中等面向表面的滑块; 和表面发射半导体激光器。滑块具有：形成介质面的一部分的滑块基板; 以及磁头部分，其上形成有介质相对表面的另一部分，并且具有与滑块基板的磁头堆叠表面接触的第一表面和与第一表面相对的第二表面。磁头部具有：主磁极，其从中间面的一侧的端面产生写入磁场; 光波导芯，沿着所述第一表面延伸并且在所述面向中的表面处具有光出射表面; 以及衍射光栅，其设置在光波导芯中或者比光波导芯更靠近第二表面，并且其折射率沿着光波导芯延伸的方向周期性地变化。表面发射半导体激光器被设置为与第二表面相对，使得来自表面发射半导体激光器的发射光入射到衍射光栅上，并且衍射光栅使得来自表面发射半导体激光器的至少一部分发射光为光耦合到光波导芯。

59. 发明申请

US20110122737A1 Thermally-Assisted Magnetic Recording Head with Light Detector in Element-Integration Surface 有权
标题翻译：带元件整合表面的光检测器的热辅助磁记录头
公开(公告)号：US20110122737A1
公开(公告)日：2011-05-26
申请号：US12622962
申请日：2009-11-20
申请人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
发明人： Koji Shimazawa , Seiichi Takayama , Eiji Komura , Osamu Shindo , Takashi Honda
IPC分类号： G11B11/00 , G11B5/02 , G11B5/48
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which the light-source output can be adjusted according to its variation by environmental influences and over time. The head comprises: a light source; a write head element provided in a element-integration surface; an optical system provided in the element-integration surface and configured to guide a light emitted from the light source to the vicinity of one end of the write head element; and a light detector for monitoring the light-source output, provided in the element-integration surface and comprising a light-receiving surface covering an area directly above at least a portion of the optical system. This light detector with such a light-receiving surface can detect a leakage light emitted from the optical system as a monitoring light. Therefore, feedback adjustment of the light-source output can be realized to stabilize the intensity of light for thermal-assist applied to a magnetic recording medium.
摘要翻译：提供了一种热辅助磁记录头，其中可以根据环境影响和随时间的变化来调节光源输出。头包括：光源; 设置在元件集成表面中的写入头元件; 光学系统，设置在所述元件一体化表面中并且被配置为将从所述光源发射的光引导到所述写入头元件的一端附近; 以及光检测器，用于监测元件整合表面中的光源输出，并包括覆盖光学系统的至少一部分正上方的区域的光接收表面。具有这种光接收表面的光检测器可以检测从光学系统发射的泄漏光作为监测光。因此，可以实现光源输出的反馈调整，以稳定施加到磁记录介质的热辅助的光的强度。

60. 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

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