专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 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。

22. 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。

23. 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。

24. 发明授权

US08441895B2 Thermally-assisted magnetic recording head with light detector in element-integration surface 有权
标题翻译：热辅助磁记录头，带元件整合表面的光检测器
公开(公告)号：US08441895B2
公开(公告)日：2013-05-14
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
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。

25. 发明授权

US08341825B2 Method for manufacturing a thermally-assisted magnetic head 有权
标题翻译：热辅助磁头制造方法
公开(公告)号：US08341825B2
公开(公告)日：2013-01-01
申请号：US12947091
申请日：2010-11-16
申请人： Shinji Hara , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
发明人： Shinji Hara , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/314 , G02B6/4202 , G11B5/105 , G11B5/3116 , G11B5/6088 , G11B2005/0021 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A thermally-assisted magnetic head includes a slider including an air bearing surface (ABS) and a waveguide with a core that extends from a light entering surface to the ABS, and a laser diode (LD) unit attached to the light entering surface. The LD unit faces the light entering surface, and a photo detector faces the ABS. A polarizer that only transmits light having a polarization component orthogonal to a polarization direction of linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light enters the core from the light entering surface. Light radiated from the ABS enters the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects the light transmitted through the polarizer.
摘要翻译：热辅助磁头包括滑动件，其包括空气轴承表面（ABS）和具有从光进入表面延伸到ABS的芯的波导和附接到光进入表面的激光二极管（LD）单元。 LD单元面向光入射表面，光检测器面向ABS。只有透射具有与线偏振激光的偏振方向正交的偏振分量的光的偏振器设置在ABS和光电检测器之间。 LD单元的LD被激活，并且线偏振激光从光入射表面进入芯。从ABS辐射的光进入偏振器，并且在光电检测器检测透过偏振器的光时，执行滑块和LD单元的对准。

26. 发明授权

US08102736B2 Near-field light generator comprising waveguide with inclined end surface 有权
标题翻译：近场光发生器包括具有倾斜端面的波导
公开(公告)号：US08102736B2
公开(公告)日：2012-01-24
申请号：US12496340
申请日：2009-07-01
申请人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
发明人： Seiichi Takayama , Daisuke Miyauchi , Susumu Aoki , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/3116 , G11B5/3143 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a near-field light generator capable of avoiding a noise to the generated near-field light. The generator comprises a waveguide and a plasmon antenna comprising a propagation surface or edge, for propagating surface plasmon, extending to a near-field light generating end. A portion of one side surface of the waveguide is opposed to a portion of the propagation surface or edge, so as for the waveguide light to be coupled with the plasmon antenna. And an end surface of the waveguide is inclined in such a way as to become away from the plasmon antenna toward the near-field light generating end side. The light that propagates through the waveguide and is not transformed into surface plasmon is refracted or totally reflected in the inclined end surface, does not come close to the generated near-field light, thus does not become a noise for the generated near-field light.
摘要翻译：提供能够避免产生的近场光的噪声的近场光发生器。发生器包括波导和等离子体激元天线，其包括传播表面等离子体的传播表面或边缘，延伸到近场光产生端。波导的一个侧表面的一部分与传播表面或边缘的一部分相对，以使波导光与等离子体激元天线耦合。并且波导的端面以使得等离子体激元离开近场光产生端侧的方式倾斜。通过波导传播并且未被转换成表面等离子体的光在倾斜端面折射或全反射，不会接近所产生的近场光，因此不会产生所产生的近场光的噪声。

27. 发明授权

US07930817B2 Method of manufacturing a thermally assisted magnetic head 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US07930817B2
公开(公告)日：2011-04-26
申请号：US12199526
申请日：2008-08-27
申请人： Seiichi Takayama , Koji Shimazawa , Yasuhiro Ito
发明人： Seiichi Takayama , Koji Shimazawa , Yasuhiro Ito
IPC分类号： G11B5/127 , H04R31/00
CPC分类号： G11B5/3166 , G11B5/314 , G11B2005/0021 , Y10T29/49032 , Y10T29/49036 , Y10T29/49043 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A method comprises an opposing step of arranging a light-shielding film 50 having a recessed surface 52 and a pinhole 54 formed within the recessed surface 52 such that an end face 54X of the pinhole 54 of the light-shielding film 50 on the recessed surface 52 side and a light exit surface 4B oppose each other, while the shortest distance A52 between the light-shielding film 50 and a medium-opposing surface S in a thickness direction of the light-shielding film 50 is shorter than the shortest distance A54 between the end face 54X of the pinhole 54 on the side opposite from a transparent substrate 58 and the light exit surface 4B; a light-emitting step of causing a light-emitting device 3 to emit emission light 3A; and a detecting step of detecting the light transmitted through the pinhole 54 after being emitted from the light exit surface 4B.
摘要翻译：一种方法包括布置具有形成在凹陷表面52内的凹陷表面52和针孔54的遮光膜50的相对步骤，使得遮光膜50的凹陷表面上的针孔54的端面54X 52侧和光出射面4B彼此相对，而遮光膜50与遮光膜50的厚度方向上的介质相对面S之间的最短距离A52比在遮光膜50的厚度方向上的最短距离A54短针孔54的与透明基板58相反一侧的端面54X和光出射面4B; 使发光装置3发射发射光3A的发光步骤; 以及检测步骤，从光出射面4B发射后，检测透过针孔54的光。

28. 发明申请

US20110026377A1 Thermally-Assisted Magnetic Recording Head Comprising Light Source with Photonic-Band Layer 有权
标题翻译：包含光子带光层的热辅助磁记录头
公开(公告)号：US20110026377A1
公开(公告)日：2011-02-03
申请号：US12512249
申请日：2009-07-30
申请人： Koji Shimazawa , Seiichi Takayama , Tsutomu Chou , Eiji Komura
发明人： Koji Shimazawa , Seiichi Takayama , Tsutomu Chou , Eiji Komura
IPC分类号： G11B11/00 , 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 having sufficiently high output power for performing thermal-assist is disposed in the element-integration surface of the substrate to achieve improved mass-productivity. The head includes: a light source having a multilayered structure including a photonic-band layer and having a light-emitting surface opposed to the element-integration surface; a diffraction optical element that converges the emitted light; a light-path changer that changes the direction of the converged light; a waveguide that propagates the direction-changed light toward the opposed-to-medium surface; and a magnetic pole that generates write field. The surface-emitting type light source includes a photonic-band layer having a periodic structure in which a light from an active region resonates, and thus emits laser light on a quite different principle from a VCSEL. Therefore, the light source can be disposed in the element-integration surface, even though having sufficiently high output power.
摘要翻译：提供了一种热辅助磁记录头，其中具有足够高输出功率的用于进行热辅助的光源设置在基板的元件集成表面中，以实现提高的批量生产率。头包括：具有包括光子带层并且具有与元件一体化表面相对的发光表面的多层结构的光源; 会聚发射光的衍射光学元件; 改变会聚光的方向的光路改变器; 波导，其将所述方向改变的光传播到所述相对中介表面; 以及产生写入场的磁极。表面发射型光源包括具有周期性结构的光子带层，其中来自有源区的光谐振，从而以与VCSEL完全不同的原理发射激光。因此，即使具有足够高的输出功率，也可以将光源配置在元件一体化表面。

29. 发明申请

US20120117791A1 METHOD FOR MANUFACTURING A THERMALLY-ASSISTED MAGNETIC HEAD 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US20120117791A1
公开(公告)日：2012-05-17
申请号：US12947091
申请日：2010-11-16
申请人： Shinji HARA , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
发明人： Shinji HARA , Koji Shimazawa , Eiji Komura , Tsutomu Chou , Seiichi Takayama
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G02B6/4202 , G11B5/105 , G11B5/3116 , G11B5/6088 , G11B2005/0021 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： In a method for manufacturing a thermally-assisted magnetic head that includes a slider and an LD unit, the slider including an air bearing surface (ABS) that faces a recording medium and including a waveguide with a core for light propagation that extends from a light entering surface, which is different from the ABS, to the ABS, the LD unit being attached to the light entering surface of the slider, and the thermally-assisted magnetic head performing magnetic recording while heating the recording medium with near-field light that is excited from linearly polarized laser light, the LD unit is disposed in a position facing the light entering surface of the slider, a photo detector is disposed in a position facing the ABS of the slider, and a polarizer transmitting only light having a polarization component that is orthogonal to a polarization direction of the linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light is enabled to enter into the core from the light entering surface of the slider. Light radiated from the ABS is enabled to enter into the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects light that is transmitted through the polarizer.
摘要翻译：在制造包括滑块和LD单元的热辅助磁头的方法中，滑块包括面向记录介质的空气轴承表面（ABS），该空气轴承表面包括具有从光线延伸的光传播用核心的波导进入与ABS不同的表面，将LD单元附着到滑块的光进入表面，并且热辅助磁头在用近场光加热记录介质的同时进行磁记录从线偏振激光激发，LD单元被设置在面向滑块的光进入表面的位置，光电检测器设置在面向滑块的ABS的位置，偏振器仅透射具有偏振分量的光，与线偏振激光的偏振方向垂直的方式设置在ABS和光电检测器之间。 LD单元的LD被激活，并且线偏振激光能够从滑块的光进入表面进入芯中。从ABS辐射的光能够进入偏振器，并且当光电检测器检测到透射通过偏振器的光时，执行滑块和LD单元的对准。

30. 发明授权

US08164986B2 Thermally-assisted magnetic recording head and thermally-assisted magnetic recording method 有权
标题翻译：热辅助磁记录头和热辅助磁记录方法
公开(公告)号：US08164986B2
公开(公告)日：2012-04-24
申请号：US12471786
申请日：2009-05-26
申请人： Susumu Aoki , Daisuke Miyauchi , Seiichi Takayama , Koji Shimazawa , Tetsuya Roppongi
发明人： Susumu Aoki , Daisuke Miyauchi , Seiichi Takayama , Koji Shimazawa , Tetsuya Roppongi
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B11/10534 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording head capable of a satisfying thermally-assisted magnetic recording without depending on the use of a near-field light generator is provided. The head comprises a waveguide and a main magnetic pole having a main pole tip. Further, at least a portion of the main pole tip is embedded in a groove provided in the upper surface of the waveguide. Further, a second clad layer is provided on the first clad layer and on a rear side from the main pole tip. This configuration of the first and second clad layers suppresses the absorption of the light propagating through the waveguide by the main magnetic pole. Further, the configuration in which at least a portion of the main pole tip is embedded in the groove can cause the distance between the light spot center of the waveguide and the main magnetic pole to be sufficiently small.
摘要翻译：提供一种能够满足热辅助磁记录而不依赖于近场光发生器的磁记录头。头部包括具有主极尖端的波导和主磁极。此外，主极尖的至少一部分嵌入设置在波导的上表面中的槽中。此外，第二覆盖层设置在第一覆盖层上并且在主极尖端的后侧。第一和第二包层的这种配置抑制由主磁极吸收通过波导传播的光。此外，主极尖的至少一部分埋设在槽中的结构可以使波导的光点中心与主磁极之间的距离足够小。

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