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    Thermally-assisted magnetic recording head having a plasmon generator
    43.
    发明授权
    Thermally-assisted magnetic recording head having a plasmon generator 有权
    具有等离子体发生器的热辅助磁记录头

    公开(公告)号：US08619517B1

    公开(公告)日：2013-12-31

    申请号：US13584185

    申请日：2012-08-13

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

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

    IPC分类号： G11B11/00

    CPC分类号： G11B5/6088 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/3163 ,  G11B2005/0021

    摘要： A thermally-assisted magnetic recording head includes a waveguide having a core and a cladding, and a plasmon generator. The core has an evanescent light generating surface. The plasmon generator has a plasmon exciting part opposed to the evanescent light generating surface. Assuming a virtual straight line that passes internally through the core and that is parallel to the direction of travel of light propagating through the core, at least part of the evanescent light generating surface and at least part of the plasmon exciting part are both inclined relative to the virtual straight line such that the distance from the virtual straight line decreases with increasing proximity to the medium facing surface.

    摘要翻译： 热辅助磁记录头包括具有芯和包层的波导和等离子体发生器。 核心具有ev逝的光生成面。 等离子体发生器具有与瞬逝光产生表面相对的等离子体激元部分。 假设虚拟直线在内部通过芯并且平行于传播通过芯的光的行进方向，至少部分渐逝光产生表面和至少部分等离子体激元部分都相对于 虚拟直线使得距离虚拟直线的距离随着与介质面对表面的接近程度的增加而减小。

    Magnetic head for perpendicular magnetic recording including a coil element located between the top surface of a main pole and an inclined surface of a shield
    44.
    发明授权
    Magnetic head for perpendicular magnetic recording including a coil element located between the top surface of a main pole and an inclined surface of a shield 有权
    用于垂直磁记录的磁头，包括位于主极的顶表面和屏蔽的倾斜表面之间的线圈元件

    公开(公告)号：US08385019B1

    公开(公告)日：2013-02-26

    申请号：US13472981

    申请日：2012-05-16

    申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Tatsuya Shimizu

    发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Tatsuya Shimizu

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3123 ,  G11B5/1278 ,  G11B5/3116

    摘要： A magnetic head includes a coil, a main pole, a write shield, a gap part, and a return path section. The return path section is located on the front side in the direction of travel of a recording medium relative to the main pole, and connects the write shield and part of the main pole away from a medium facing surface to each other. The coil includes a specific coil element. The main pole has a top surface including an inclined portion and a flat portion. The write shield has an inclined surface. The inclined surface includes a first portion opposed to the inclined portion with the gap part therebetween, and a second portion located farther from the medium facing surface than the first portion. The specific coil element includes a portion interposed between the flat portion and the second portion.

    摘要翻译： 磁头包括线圈，主极，写屏蔽，间隙部分和返回路径部分。 返回路径部分位于记录介质相对于主极的行进方向的前侧上，并且将写入屏蔽和主极的一部分远离介质相对表面彼此连接。 线圈包括特定的线圈元件。 主极具有包括倾斜部分和平坦部分的顶表面。 写屏蔽具有倾斜表面。 倾斜表面包括与其间具有间隙部分的倾斜部分相对的第一部分和位于比介质相对表面比第一部分更远的第二部分。 特定线圈元件包括插入在平坦部分和第二部分之间的部分。

    Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion
    46.
    发明授权
    Magnetic head for perpendicular magnetic recording including a main pole with a lower protrusion 有权
    用于垂直磁记录的磁头，包括具有下凸起的主极

    公开(公告)号：US09336798B1

    公开(公告)日：2016-05-10

    申请号：US14567590

    申请日：2014-12-11

    申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Yukinori Ikegawa

    发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Yukinori Ikegawa

    IPC分类号： G11B5/187 ,  G11B5/127 ,  G11B5/17 ,  G11B5/31

    CPC分类号： G11B5/1278 ,  G11B5/02 ,  G11B5/17 ,  G11B5/187 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3169

    摘要： A main pole includes a main body and a lower protrusion. The lower protrusion is located at a distance from a medium facing surface. The main body includes a front portion and a rear portion. The front portion has a first side surface and a second side surface. The lower protrusion has a third side surface and a fourth side surface. A first side shield has a first sidewall opposed to the first side surface. A second side shield has a second sidewall opposed to the second side surface. A bottom shield includes a receiving section. The receiving section has a third sidewall opposed to the third side surface, and a fourth sidewall opposed to the fourth side surface. The receiving section and the lower protrusion are formed in a self-aligned manner by using the first and second side shields.

    摘要翻译： 主杆包括主体和下突起。 下突出部位于与面向介质的表面相距一定距离处。 主体包括前部和后部。 前部具有第一侧表面和第二侧表面。 下突起具有第三侧表面和第四侧表面。 第一侧屏蔽具有与第一侧表面相对的第一侧壁。 第二侧屏蔽具有与第二侧表面相对的第二侧壁。 底部屏蔽包括接收部分。 接收部分具有与第三侧表面相对的第三侧壁和与第四侧表面相对的第四侧壁。 通过使用第一和第二侧面屏蔽件以自对准的方式形成接收部分和下部突出部。

    Thermally-assisted magnetic recording head including a plasmon generator
    48.
    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
    50.
    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。