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1. 发明授权

US11604313B2 Waveguide and manufacturing method thereof 有权
公开(公告)号：US11604313B2
公开(公告)日：2023-03-14
申请号：US17364588
申请日：2021-06-30
申请人： Yukinori Ikegawa , Dayu Zhou , Koji Shimazawa , Yoshitaka Sasaki , Hiroyuki Ito , Yoji Nomura
发明人： Yukinori Ikegawa , Dayu Zhou , Koji Shimazawa , Yoshitaka Sasaki , Hiroyuki Ito , Yoji Nomura
IPC分类号： G02B6/122 , G02B6/136 , G11B5/012 , G11B13/08 , G11B5/00 , G02B6/12
摘要： A waveguide includes a core and a cladding. The core has an inlet on which light is incident. The core includes a front portion and a rear portion located between the front portion and the inlet. The front portion and the rear portion each have a thickness that is a dimension in a first direction and a width that is a dimension in a second direction. The first direction is orthogonal to a propagation direction of the light. The second direction is orthogonal to the propagation direction of the light and the first direction. The thickness of the front portion decreases with increasing distance from the inlet.

2. 发明授权

US08248897B2 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：US08248897B2
公开(公告)日：2012-08-21
申请号：US12899101
申请日：2010-10-06
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 , G11B5/6088 , 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 a unit adhesion material layer that contains Sn, Sn alloy, Pb alloy or Bi alloy 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 unit adhesion material layer is sandwiched therebetween; and causing a light including the predetermined wavelength to enter the unit substrate to melt the unit adhesion material layer. The unit adhesion material layer melted by the light including the predetermined wavelength 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/或滑块上形成包含Sn，Sn合金，Pb合金或Bi合金的单位粘附材料层。该制造方法包括：使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，并且单元粘合材料层夹在其间; 并使包含所述预定波长的光进入所述单元基板以熔化所述单元粘合材料层。由包含预定波长的光熔化的单元粘合材料层可以确保高对准精度以及更高的粘合强度和较小的随时间的变化。

3. 发明授权

US08149653B2 Light source unit for thermally-assisted magnetic recording capable of monitoring of light output 有权
标题翻译：用于热辅助磁记录的光源单元，能够监测光输出
公开(公告)号：US08149653B2
公开(公告)日：2012-04-03
申请号：US12728510
申请日：2010-03-22
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 , G11B2005/0021 , Y10T156/1052
摘要： Provided is a light source unit that is to be joined to a slider to form a thermally-assisted magnetic recording head. The light source unit comprises: a unit substrate having a source-installation surface; a light source provided in the source-installation surface and emitting thermal-assist light; and a photodetector bonded to a rear joining surface of the unit substrate in such a manner that a rear light-emission center of the light source is covered with a light-receiving surface of the photodetector. The photodetector can be sufficiently close to the light source; thus, constant feedback adjustment with high efficiency for the light output of the light source can be performed. This adjustment enables light output from the light source to be controlled in response to changes in light output due to surroundings and to changes with time to stabilize the intensity of light with which a magnetic recording medium is irradiated.
摘要翻译：提供一种光源单元，其被连接到滑块以形成热辅助磁记录头。光源单元包括：具有源安装表面的单元基板; 光源，设置在源安装表面中并发射热辅助光; 以及光电检测器，其以使得光源的后发光中心被光电检测器的光接收表面覆盖的方式结合到单元基板的后接合表面。光电检测器可以足够靠近光源; 因此，可以执行用于光源的光输出的高效率的恒定反馈调整。该调整使得能够响应于由于周围环境导致的光输出的变化而控制来自光源的光输出，并且随着时间的变化来稳定照射磁记录介质的光的强度。

4. 发明申请

US20100182003A1 MAGNETIC FILM SENSOR AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：磁性膜传感器及其制造方法
公开(公告)号：US20100182003A1
公开(公告)日：2010-07-22
申请号：US12725935
申请日：2010-03-17
申请人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
发明人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
IPC分类号： G01R33/02 , H01F7/06
CPC分类号： G01R33/18 , Y10T29/4902
摘要： A magnetic film sensor comprises a magnetic film for generating a magnetostriction, and a magnetostrictive structure for generating a magnetostriction in the magnetic film. The magnetostrictive structure is constructed so as to generate a magnetostriction by curving the magnetic film, for example. The magnetostrictive structure is obtained, for example, by providing a depressed insulating layer having a surface formed with a depression and forming the magnetic film across the depression.
摘要翻译：磁性膜传感器包括用于产生磁致伸缩的磁性膜和用于在磁性膜中产生磁致伸缩的磁致伸缩结构。磁致伸缩结构被构造成例如通过弯曲磁性膜而产生磁致伸缩。磁致伸缩结构例如通过提供具有形成有凹陷的表面的凹陷绝缘层并且形成跨越凹部的磁性膜而获得。

5. 发明授权

US07750627B2 Magnetic film sensor having a magnetic film for generating a magnetostriction and a depressed insulating layer 有权
标题翻译：具有用于产生磁致伸缩的磁性膜和凹陷绝缘层的磁性膜传感器
公开(公告)号：US07750627B2
公开(公告)日：2010-07-06
申请号：US11585117
申请日：2006-10-24
申请人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
发明人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
IPC分类号： G01R33/02
CPC分类号： G01R33/18 , Y10T29/4902
摘要： A magnetic film sensor comprises a magnetic film for generating a magnetostriction, and a magnetostrictive structure for generating a magnetostriction in the magnetic film. The magnetostrictive structure is constructed so as to generate a magnetostriction by curving the magnetic film, for example. The magnetostrictive structure is obtained, for example, by providing a depressed insulating layer having a surface formed with a depression and forming the magnetic film across the depression.
摘要翻译：磁性膜传感器包括用于产生磁致伸缩的磁性膜和用于在磁性膜中产生磁致伸缩的磁致伸缩结构。磁致伸缩结构被构造成例如通过弯曲磁性膜而产生磁致伸缩。磁致伸缩结构例如通过提供具有形成有凹陷的表面的凹陷绝缘层并且形成跨越凹部的磁性膜而获得。

6. 发明申请

US20080094059A1 Magnetic film sensor and method of manufacturing the same 有权
标题翻译：磁性膜传感器及其制造方法
公开(公告)号：US20080094059A1
公开(公告)日：2008-04-24
申请号：US11585117
申请日：2006-10-24
申请人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
发明人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
IPC分类号： G01R33/02
CPC分类号： G01R33/18 , Y10T29/4902
摘要： A magnetic film sensor comprises a magnetic film for generating a magnetostriction, and a magnetostrictive structure for generating a magnetostriction in the magnetic film. The magnetostrictive structure is constructed so as to generate a magnetostriction by curving the magnetic film, for example. The magnetostrictive structure is obtained, for example, by providing a depressed insulating layer having a surface formed with a depression and forming the magnetic film across the depression.
摘要翻译：磁性膜传感器包括用于产生磁致伸缩的磁性膜和用于在磁性膜中产生磁致伸缩的磁致伸缩结构。磁致伸缩结构被构造成例如通过弯曲磁性膜而产生磁致伸缩。磁致伸缩结构例如通过提供具有形成有凹陷的表面的凹陷绝缘层并且形成跨越凹部的磁性膜而获得。

7. 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。

8. 发明授权

US08174261B2 Magnetic film sensor with a deformable part 有权
标题翻译：具有可变形部分的磁性膜传感器
公开(公告)号：US08174261B2
公开(公告)日：2012-05-08
申请号：US12725935
申请日：2010-03-17
申请人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
发明人： Yoshitaka Sasaki , Koji Shimazawa , Tatsushi Shimizu
IPC分类号： G01R33/02
CPC分类号： G01R33/18 , Y10T29/4902
摘要： A magnetic film sensor comprises a magnetic film for generating a magnetostriction, and a magnetostrictive structure for generating a magnetostriction in the magnetic film. The magnetostrictive structure is constructed so as to generate a magnetostriction by curving the magnetic film, for example. The magnetostrictive structure is obtained, for example, by providing a depressed insulating layer having a surface formed with a depression and forming the magnetic film across the depression. A deformable part that is formed using a softer material than the magnetic film may also be formed at least partly on a surface of the magnetostrictive structure, within the depression.
摘要翻译：磁性膜传感器包括用于产生磁致伸缩的磁性膜和用于在磁性膜中产生磁致伸缩的磁致伸缩结构。磁致伸缩结构被构造成例如通过弯曲磁性膜而产生磁致伸缩。磁致伸缩结构例如通过提供具有形成有凹陷的表面的凹陷绝缘层并且形成跨越凹部的磁性膜而获得。使用比磁性膜更软的材料形成的可变形部分也可以至少部分地形成在凹凸部内的磁致伸缩结构的表面上。

9. 发明授权

US08427927B1 Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly, and magnetic disk unit 有权
标题翻译：热辅助磁记录头，头架万向节组件，头臂组件和磁盘单元
公开(公告)号：US08427927B1
公开(公告)日：2013-04-23
申请号：US13370982
申请日：2012-02-10
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide allowing a transverse-electric (TE) wave oscillating in a cross-track direction to propagate toward an air bearing surface; and a plasmon generator having a tip portion near the air bearing surface, the tip portion being provided to overlap, in a down-track direction, with both the magnetic pole and the waveguide, and having a quadrangular cross-section substantially parallel to the air bearing surface.
摘要翻译：热辅助磁记录头包括：磁极; 允许在横向轨道方向上振荡的横向电（TE）波向空气轴承表面传播的波导; 以及等离子体发生器，其具有靠近所述空气支承表面的尖端部分，所述尖端部分被设置为沿着磁道和所述波导两者的向下轨道方向重叠，并且具有基本上平行于所述空气的四边形横截面承载面。

10. 发明授权

US08374061B2 Thermally-assisted magnetic recording head capable of reducing the number of binding wires 有权
标题翻译：热辅助磁记录头，能够减少装订线的数量
公开(公告)号：US08374061B2
公开(公告)日：2013-02-12
申请号：US12190381
申请日：2008-08-12
申请人： Kosuke Tanaka , Koji Shimazawa , Yasuhiro Ito
发明人： Kosuke Tanaka , Koji Shimazawa , Yasuhiro Ito
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/02 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： A slider has a slider substrate, an electromagnetic transducer, a waveguide for receiving light from a surface on the side opposite from a medium-opposing surface and guiding the light to the medium-opposing surface side, and a device electrode electrically connected to the electromagnetic transducer. A light source unit includes a light source supporting substrate, a light source, and a lead extending from the slider side to the side opposite from the slider and having both end parts exposed at a surface of the light source unit. The device electrode of the slider is exposed at the surface of the slider on the side opposite from the medium-opposing surface without being covered with the light source unit. An end part on the slider side of the lead of the light source unit is soldered to the device electrode of the slider.
摘要翻译：滑块具有滑块基板，电磁换能器，用于从与介质相对表面相对的一侧上的表面接收光并将光引导到介质相对表面侧的波导，以及电连接到电磁传感器。光源单元包括光源支撑基板，光源和从滑块侧延伸到与滑块相对的一侧的引线，并且两端部露出在光源单元的表面。滑块的器件电极在与中间相对表面相对的一侧的滑块的表面处被暴露，而不被光源单元覆盖。将光源单元的引线的滑块侧的端部焊接到滑块的器件电极。

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