专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 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。

62. 发明授权

US08248895B2 Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and slider 有权
标题翻译：包括光源单元和滑块的制造热辅助磁记录头的方法
公开(公告)号：US08248895B2
公开(公告)日：2012-08-21
申请号：US12726981
申请日：2010-03-18
申请人： Koji Shimazawa , Yoshihiro Tsuchiya , Seiichi Takayama , Nobuyuki Mori , Yasuhiro Ito , Kosuke Tanaka , Osamu Shindo , Ryuji Fujii , Takashi Honda , Yoshitaka Sasaki
发明人： Koji Shimazawa , Yoshihiro Tsuchiya , Seiichi Takayama , Nobuyuki Mori , Yasuhiro Ito , Kosuke Tanaka , Osamu Shindo , Ryuji Fujii , Takashi Honda , Yoshitaka Sasaki
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/105 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A method for manufacturing a thermally-assisted magnetic recording head is provided, in which a light source unit including a light source and a slider including an optical system are bonded. A unit substrate is made of a material transmitting light having a predetermined wavelength, and an adhesion material layer is formed on the light source unit and/or the slider. The manufacturing method includes: aligning the light source unit and the slider in such a way that a light from the light source can enter the optical system and the adhesion material layer is sandwiched therebetween; irradiating the adhesion material layer with a light including the predetermined wavelength through the unit substrate; and bonding them. The adhesion material layer melted by the light including the predetermined wavelength and transmitted through the unit substrate can ensure high alignment accuracy as well as higher bonding strength and less change with time.
摘要翻译：提供了一种用于制造热辅助磁记录头的方法，其中包括光源和包括光学系统的滑块的光源单元被结合。单位基板由透射具有预定波长的光的材料制成，并且在光源单元和/或滑块上形成粘合材料层。该制造方法包括：将光源单元和滑块对准，使得来自光源的光能够进入光学系统，并且粘合材料层夹在其间; 用包含所述预定波长的光通过所述单元基板照射所述粘附材料层; 并粘合它们。由包含预定波长并透过单元基板的光熔化的粘合材料层可以确保高对准精度以及更高的粘接强度和随时间变化的变化。

63. 发明授权

US08116173B2 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US08116173B2
公开(公告)日：2012-02-14
申请号：US12458955
申请日：2009-07-28
申请人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.
摘要翻译：热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。滑块具有覆盖波导的波导和外涂层。激光二极管具有包括用于发射激光的发射部分和底面的发射端面。激光二极管被布置成使得底表面面向滑块的顶表面。波导具有与激光二极管的发射部分相对的入射端面。外涂层具有面向激光二极管的发射端面的端面。从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近激光二极管的发射端面。

64. 发明授权

US08089831B2 Heat-assisted magnetic recording head including plasmon generator 有权
标题翻译：热辅助磁记录头包括等离子体发生器
公开(公告)号：US08089831B2
公开(公告)日：2012-01-03
申请号：US12710129
申请日：2010-02-22
申请人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Daisuke Miyauchi
发明人： Tsutomu Chou , Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Daisuke Miyauchi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A plasmon generator has an outer surface including a surface plasmon exciting surface, and has a near-field light generating part located in a medium facing surface. The surface plasmon exciting surface is a flat surface that faces an evanescent light generating surface of a waveguide with a predetermined distance therebetween. The surface plasmon exciting surface includes a width changing portion. The width of the width changing portion in a direction parallel to the medium facing surface and the evanescent light generating surface decreases with decreasing distance to the medium facing surface. A magnetic pole is located at such a position that the plasmon generator is interposed between the magnetic pole and the waveguide. The outer surface of the plasmon generator includes a pole contact surface that is in contact with the magnetic pole.
摘要翻译：等离子体发生器具有包括表面等离子体激元表面的外表面，并且具有位于介质面对表面中的近场光产生部。表面等离子体激元表面是面对波导的ev逝光产生表面的平坦表面，其间具有预定的距离。表面等离子体激元表面包括宽度改变部分。宽度改变部分在与面向介质的表面和ev逝光产生表面平行的方向上的宽度随着与面向介质的表面的距离的减小而减小。磁极位于这样的位置，等离子体发生器插入在磁极和波导之间。等离子体发生器的外表面包括与磁极接触的极接触表面。

65. 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。

66. 发明授权

US08023226B2 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：US08023226B2
公开(公告)日：2011-09-20
申请号：US12182744
申请日：2008-07-30
申请人： Koji Shimazawa , Kosuke Tanaka
发明人： Koji Shimazawa , Kosuke Tanaka
IPC分类号： G11B11/105
CPC分类号： G11B5/314 , G11B5/02 , G11B2005/0005 , G11B2005/0021
摘要： A thermally assisted magnetic head comprises a slider having a medium-opposing surface and a light source unit secured to a surface of the slider on the side of the slider opposite from the medium-opposing surface. The slider has a slider substrate and a magnetic head part provided on a side face of the medium-opposing surface in the slider substrate. The magnetic head part includes a magnetic recording device for generating a magnetic field and a waveguide for receiving light from an end face opposite from the medium-opposing surface and guiding the light to the medium-opposing surface side. The light source unit has a light source supporting substrate, a light source secured to the light source supporting substrate and adapted to supply light to the end face of the waveguide, and a temperature sensor for measuring the temperature of the light source.
摘要翻译：热辅助磁头包括具有介质相对表面的滑块和固定到滑块的与介质相对表面相反侧的表面的光源单元。滑块具有滑动器基板和设置在滑动器基板中的介质相对表面的侧面上的磁头部分。磁头部分包括用于产生磁场的磁记录装置和用于从与介质相对表面相对的端面接收光并将光引导到介质相对表面侧的波导。光源单元具有光源支撑基板，固定在光源支撑基板上的光源，用于向波导管的端面供给光，以及温度传感器，用于测量光源的温度。

67. 发明授权

US07957085B2 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：US07957085B2
公开(公告)日：2011-06-07
申请号：US11896058
申请日：2007-08-29
申请人： Kosuke Tanaka , Koji Shimazawa , Takaaki Domon
发明人： Kosuke Tanaka , Koji Shimazawa , Takaaki Domon
IPC分类号： G11B7/135 , G11B5/31 , G11B11/105
CPC分类号： G11B5/4826 , G11B5/314 , G11B2005/0021
摘要： A thermally assisted magnetic head has a slider substrate having a first surface located on the opposite side to a medium-facing surface, and side surfaces located between the medium-facing surface and the first surface; a magnetic head portion having a waveguide having a light exit face on the medium-facing surface side, and a magnetic recording element disposed in proximity to the light exit face, the magnetic head portion being fixed to one of the side surfaces of the slider substrate; a light source support substrate having a second surface facing the first surface; a light emitting element facing a light entrance face of the waveguide and fixed to the light source support substrate; and an adhesive interposed between the first surface and the second surface; at least one of the first surface and the second surface has a recess and the adhesive is disposed in the recess.
摘要翻译：热辅助磁头具有滑动器基板，其具有位于面向中间的表面的相对侧上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; 一个磁头部分，其具有一个波导，该波导具有介于介质的表面侧上的光出射面，和一个设置在靠近光出射面的磁记录元件，磁头部分固定在滑块基板的一个侧面 ; 光源支撑基板，具有面向第一表面的第二表面; 面向波导的光入射面并固定到光源支撑基板的发光元件; 以及插入在所述第一表面和所述第二表面之间的粘合剂; 第一表面和第二表面中的至少一个具有凹部，并且粘合剂设置在凹部中。

68. 发明申请

US20110026379A1 Heat-assisted magnetic recording head with laser diode 有权
标题翻译：带激光二极管的热辅助磁记录头
公开(公告)号：US20110026379A1
公开(公告)日：2011-02-03
申请号：US12458955
申请日：2009-07-28
申请人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
发明人： Koji Shimazawa , Seiichi Takayama , Yasuhiro Ito , Daisuke Miyauchi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.
摘要翻译：热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。该滑块具有覆盖波导的波导和外涂层。激光二极管具有包括用于发射激光的发射部分和底面的发射端面。激光二极管被布置成使得底表面面向滑块的顶表面。波导具有与激光二极管的发射部分相对的入射端面。外涂层具有面向激光二极管的发射端面的端面。从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近激光二极管的发射端面。

69. 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。

70. 发明申请

US20080151431A1 Thermally assisted magnetic head 有权
标题翻译：热辅助磁头
公开(公告)号：US20080151431A1
公开(公告)日：2008-06-26
申请号：US12000753
申请日：2007-12-17
申请人： Kosuke Tanaka , Koji Shimazawa
发明人： Kosuke Tanaka , Koji Shimazawa
IPC分类号： G11B5/48 , G11B5/33
CPC分类号： G11B5/314 , G11B5/02 , G11B2005/0002 , G11B2005/0021
摘要： A thermally assisted magnetic head has a medium-facing surface facing a medium, and comprises: a waveguide an end face of which is exposed in the medium-facing surface; an electroconductive near-field light generator plate disposed on a medium-facing surface of the waveguide so that a principal face thereof faces the medium; and an electroconductive near-field light scatter plate disposed on the medium-facing surface of the thermally assisted magnetic head so that a principal face thereof faces the medium; when viewed from a direction perpendicular to the medium-facing surface, the near-field light generator plate has a cusp portion at an end; when viewed from the direction perpendicular to the medium-facing surface, the near-field light scatter plate is arranged along the other end opposite to the cusp portion of the near-field light generator plate; when viewed from the direction perpendicular to the medium-facing surface, a width of the near-field light scatter plate in a first direction perpendicular to a direction connecting the cusp portion and the other end of the near-field light generator plate is larger than a width in the first direction of the near-field light generator plate.
摘要翻译：热辅助磁头具有面向介质的面向中间的表面，并且包括：波导，其端面暴露在面向介质的表面中; 导电近场光发生器板，其设置在波导的面向中的表面上，使得其主面面向介质; 以及设置在所述热辅助磁头的面向中间的表面上的导电近场光散射板，使得其主面面向介质; 当从垂直于介质中的表面的方向观察时，近场光发生器板在端部具有尖端部分; 当从垂直于中间面的方向观察时，近场光散射板沿着与近场光发生器板的尖部相对的另一端配置; 当从垂直于介质相对表面的方向观察时，近场光散射板在与连接近场光发生器板的尖端部分和另一端的方向垂直的第一方向上的宽度大于近场光发生器板的第一方向的宽度。

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