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    Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture
    1.
    发明授权
    Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture 有权
    具有扩展的近场光产生层的热辅助磁记录头及其制造方法

    公开(公告)号：US08619518B1

    公开(公告)日：2013-12-31

    申请号：US13586351

    申请日：2012-08-15

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuki Sato ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuki Sato ,  Ryuji Fujii

    IPC分类号： G11B11/00

    CPC分类号： G11B5/6088 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3163 ,  G11B2005/0021

    摘要： A thermally assisted magnetic head includes a main magnetic pole layer, a near-field light generating layer having a generating end part generating near-field light arranged within a medium-opposing surface, and an optical waveguide guiding light to the near-field light generating layer. The optical waveguide has a waveguide end face arranged within the medium-opposing surface and an upper end face on a side closer to the main magnetic pole layer. The thermally assisted magnetic head has an interposed layer which is in direct contact with an outer surface of the optical waveguide. The near-field light generating layer has a near-field light generating part having the generating end part and an expanded part connected with the near-field light generating part. The expanded part has a base part arranged above the upper end face of the optical waveguide and extended base part connected with the base part.

    摘要翻译： 一种热辅助磁头包括主磁极层，具有产生在介质相对表面内布置的近场光的产生端部分的近场光产生层和将光引导到近场光产生 层。 光波导具有布置在介质相对表面内的波导端面和更靠近主磁极层的一侧的上端面。 热辅助磁头具有与光波导的外表面直接接触的中间层。 近场光产生层具有具有发光端部的近场光产生部和与近场光产生部连接的扩展部。 扩展部具有布置在光波导的上端面上方的基部和与基部连接的延伸基部。

    Thermally-assisted magnetic recording head including a plasmon generator
    2.
    发明授权
    Thermally-assisted magnetic recording head including a plasmon generator 有权
    热辅助磁记录头包括等离子体发生器

    公开(公告)号：US09275658B2

    公开(公告)日：2016-03-01

    申请号：US14209262

    申请日：2014-03-13

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Hironori Araki ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Hironori Araki ,  Ryuji Fujii

    IPC分类号： G11B5/00 ,  G11B5/31 ,  G11B5/48 ,  G11B5/127 ,  G11B5/60

    CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B5/4866 ,  G11B5/607 ,  G11B5/6076 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A return path section includes first and second yoke portions and first, second and third columnar portions. The first and second yoke portions and the first columnar portion are located on the front side in the direction of travel of a recording medium relative to a waveguide core. The second and third columnar portions are located on opposite sides of a plasmon generator and connected to a shield. The first yoke portion connects a main pole to the first columnar portion. The second yoke portion connects the first columnar portion to the second and third columnar portions. A coil is wound around the first columnar portion. A heater and an expansion layer are located on the rear side in the direction of travel of the recording medium relative to the core.

    摘要翻译： 返回路径部分包括第一和第二轭部分以及第一，第二和第三柱状部分。 第一和第二磁轭部分和第一柱状部分位于记录介质相对于波导芯的行进方向的前侧。 第二和第三柱状部分位于等离子体发生器的相对侧并且连接到屏蔽。 第一轭部将主极连接到第一柱状部。 第二轭部将第一柱状部分连接到第二和第三柱状部分。 线圈缠绕在第一柱状部分上。 加热器和膨胀层位于记录介质相对于芯的行进方向的后侧。

    Thermally-assisted magnetic recording head having a waveguide and a return path section
    3.
    发明授权
    Thermally-assisted magnetic recording head having a waveguide and a return path section 有权
    具有波导和返回路径部分的热辅助磁记录头

    公开(公告)号：US08498183B1

    公开(公告)日：2013-07-30

    申请号：US13660479

    申请日：2012-10-25

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Shigeki Tanemura ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Shigeki Tanemura ,  Ryuji Fujii

    IPC分类号： G11B11/00

    CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B2005/0021

    摘要： A thermally-assisted magnetic recording head includes a coil, a main pole, a return path section, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The return path section includes: first and second columnar portions located on opposite sides of the core in the track width direction; a coupling portion coupling the first and second columnar portions to each other; and a third columnar portion connected to the coupling portion. The third columnar portion is smaller than the coupling portion in width in the track width direction. The coil includes a winding portion wound around the third columnar portion.

    摘要翻译： 热辅助磁记录头包括线圈，主极，返回路径部分，波导和等离子体发生器。 波导包括芯和包层。 返回路径部分包括：在轨道宽度方向上位于芯的相对侧上的第一和第二柱状部分; 将所述第一和第二柱状部分彼此连接的联接部分; 以及连接到联接部分的第三柱状部分。 第三柱状部比轨道宽度方向上的宽度方向的连结部小。 线圈包括卷绕在第三柱状部分上的缠绕部分。

    Thermally assisted magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
    4.
    发明授权
    Thermally assisted magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive 有权
    热辅助磁头，制造方法，磁头万向节组件和硬盘驱动器

    公开(公告)号：US08988975B1

    公开(公告)日：2015-03-24

    申请号：US14035015

    申请日：2013-09-24

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuki Sato ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Hironori Araki ,  Shigeki Tanemura ,  Kazuki Sato ,  Ryuji Fujii

    IPC分类号： G11B11/00 ,  G11B5/48 ,  G11B5/127 ,  G11B5/00

    CPC分类号： G11B5/314 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/3163 ,  G11B2005/0021 ,  Y10T29/49032

    摘要： A thermally assisted magnetic head includes a main magnetic pole layer, a near-field light generating layer having a generating end part generating near-field light arranged within a medium-opposing surface, and an optical waveguide guiding light to the near-field light generating layer. The near-field light generating layer has a laminated structure in which a first thin-film metal layer formed in a thin film form along a direction intersecting the medium-opposing surface and a second thin-film metal layer formed in a thin film form and formed using a second metal larger in hardness than a first metal forming the first thin-film metal layer are alternately laminated. Further, in the second thin-film metal layer, a defect part is formed, the defect part is a part smaller in thickness than another part or is a hole part, and a flat layer part other than the defect part surrounds the defect part.

    摘要翻译： 一种热辅助磁头包括主磁极层，具有产生在介质相对表面内布置的近场光的产生端部分的近场光产生层和将光引导到近场光产生 层。 近场光产生层具有层叠结构，其中沿着与介质相对表面相交的方向形成薄膜的第一薄膜金属层和形成为薄膜形式的第二薄膜金属层，以及 使用比形成第一薄膜金属层的第一金属硬度大的第二金属交替层压。 此外，在第二薄膜金属层中，形成缺陷部，缺陷部的厚度比另一部分小，也可以是孔部，缺陷部以外的平坦部包围缺损部。

    Near-field light generator and thermally-assisted magnetic recording head
    5.
    发明授权
    Near-field light generator and thermally-assisted magnetic recording head 有权
    近场光发生器和热辅助磁记录头

    公开(公告)号：US08509038B1

    公开(公告)日：2013-08-13

    申请号：US13660526

    申请日：2012-10-25

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Hironori Araki ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Kazuki Sato ,  Hironori Araki ,  Ryuji Fujii

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A near-field light generator includes a waveguide and a plasmon generator. The waveguide has a core and a cladding. The core has first and second evanescent light generating surfaces disposed such that the plasmon generator is interposed therebetween. The plasmon generator has an outer surface, the outer surface including: a front end face; a first plasmon exciting part that is opposed to the first evanescent light generating surface with a predetermined spacing therebetween; and a second plasmon exciting part that is opposed to the second evanescent light generating surface with a predetermined spacing therebetween.

    摘要翻译： 近场光发生器包括波导和等离子体发生器。 波导具有芯和包层。 芯具有第一和第二渐逝光产生表面，其设置成使等离子体发生器插入其间。 所述等离子体发生器具有外表面，所述外表面包括：前端面; 第一等离子体激元部分，其与第一渐逝光产生表面相对，其间具有预定间隔; 以及与第二瞬逝光产生表面相对的第二等离子体激元部分，其间具有预定间隔。

    Multilayer plasmon generator
    7.
    发明授权
    Multilayer plasmon generator 有权
    多层等离子体发生器

    公开(公告)号：US08867170B1

    公开(公告)日：2014-10-21

    申请号：US13942074

    申请日：2013-07-15

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    IPC分类号： G11B5/147

    CPC分类号： G11B5/6088 ,  G11B5/314 ,  G11B2005/0021

    摘要： A plasmon generator has a front end face located in a medium facing surface of a magnetic head. The plasmon generator includes a metal portion and a multilayer film portion. The metal portion has a bottom surface, a top surface, and an end face facing toward the front end face. The multilayer film portion includes a first metal layer, a second metal layer and an intermediate layer, and covers the top surface and the end face of the metal portion. The intermediate layer is formed of a material that is higher in Vickers hardness than the metal material used to form the metal portion, the metal material used to form the first metal layer and the metal material used to form the second metal layer.

    摘要翻译： 等离子体发生器具有位于磁头的介质面向表面中的前端面。 等离子体发生器包括金属部分和多层膜部分。 金属部分具有底表面，顶表面和面向前端面的端面。 多层膜部分包括第一金属层，第二金属层和中间层，并且覆盖金属部分的顶表面和端面。 中间层由维氏硬度高于用于形成金属部分的金属材料，用于形成第一金属层的金属材料和用于形成第二金属层的金属材料形成。

    Near-field light generator and thermally-assisted magnetic recording head
    8.
    发明授权
    Near-field light generator and thermally-assisted magnetic recording head 有权
    近场光发生器和热辅助磁记录头

    公开(公告)号：US08830799B1

    公开(公告)日：2014-09-09

    申请号：US13846337

    申请日：2013-03-18

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    IPC分类号： G11B11/00 ,  G02B5/00 ,  G11B13/08 ,  G02B27/56

    CPC分类号： G02B5/008 ,  G11B5/314 ,  G11B2005/0021

    摘要： A near-field light generator includes a multilayer structure having a front end face. The multilayer structure includes a first dielectric layer, a second dielectric layer, a third dielectric layer, a first metal layer, and a second metal layer. The first metal layer is interposed between the first dielectric layer and the second dielectric layer. The second metal layer is interposed between the second dielectric layer and the third dielectric layer. Each of the first to third dielectric layers and the first and second metal layers has an end located in the front end face. The dielectric material used to form the first dielectric layer, the dielectric material used to form the second dielectric layer, and the dielectric material used to form the third dielectric layer have the same permittivity.

    摘要翻译： 近场光发生器包括具有前端面的多层结构。 多层结构包括第一介电层，第二介电层，第三介电层，第一金属层和第二金属层。 第一金属层介于第一介电层和第二电介质层之间。 第二金属层介于第二电介质层和第三电介质层之间。 第一至第三电介质层和第一和第二金属层中的每一个具有位于前端面中的端部。 用于形成第一电介质层的电介质材料，用于形成第二电介质层的电介质材料以及用于形成第三电介质层的电介质材料具有相同的介电常数。

    Multilayer plasmon generator
    9.
    发明授权
    Multilayer plasmon generator 有权
    多层等离子体发生器

    公开(公告)号：US08861138B2

    公开(公告)日：2014-10-14

    申请号：US13846278

    申请日：2013-03-18

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Ryuji Fujii

    IPC分类号： G11B5/02 ,  B23K10/00 ,  G11B13/04

    CPC分类号： B23K10/00 ,  G02B6/1226 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A plasmon generator has a front end face, a first metal layer, a second meta-field light based on a surface plasmon. The intermediate layer is interposed between the first metal layer and the second metal layer. Each of the first metal layer, the second metal layer and the intermediate layer has an end located in the front end face. Each of the first and second metal layers is formed of a metal material. The intermediate layer is formed of a material higher in Vickers hardness than the metal material used to form the first metal layer and the metal material used to form the second metal layer.

    摘要翻译： 等离子体激元发生器具有前端面，第一金属层，基于表面等离子体激元的第二元场光。 中间层介于第一金属层和第二金属层之间。 第一金属层，第二金属层和中间层中的每一个具有位于前端面中的端部。 第一和第二金属层中的每一个由金属材料形成。 中间层由维氏硬度比用于形成第一金属层的金属材料和用于形成第二金属层的金属材料的材料形成。