公开(公告)号：US11289117B1

公开(公告)日：2022-03-29

申请号：US17170126

申请日：2021-02-08

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Yoji Nomura ,  Tetsuya Roppongi ,  Tetsuhito Shinohara ,  Ying Liu ,  Min Li ,  Alain Truong ,  Yuhui Tang ,  Wenyu Chen

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Yoji Nomura ,  Tetsuya Roppongi ,  Tetsuhito Shinohara ,  Ying Liu ,  Min Li ,  Alain Truong ,  Yuhui Tang ,  Wenyu Chen

IPC分类号： G11B5/23 ,  G11B5/115 ,  G11B5/39 ,  G11B5/00

摘要： A magnetic head includes a medium facing surface, a main pole, a trailing shield, and a spin torque oscillator. A bottom surface of the trailing shield includes a first portion that includes an end located in the medium facing surface and is in contact with the spin torque oscillator at least in part. An element height that is a dimension of the spin torque oscillator in a direction perpendicular to the medium facing surface and a writer height that is a dimension of the first portion in the direction perpendicular to the medium facing surface are different from each other.

公开(公告)号：US11211082B1

公开(公告)日：2021-12-28

申请号：US17169995

申请日：2021-02-08

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Tetsuhito Shinohara ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Hironori Araki ,  Tetsuya Roppongi

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Tetsuhito Shinohara ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Hironori Araki ,  Tetsuya Roppongi

IPC分类号： G11B5/187 ,  G11B5/115

摘要： A magnetic head includes a medium facing surface, a main pole, a trailing shield, a spin torque oscillator, and a first insulating layer. The first insulating layer is interposed between a portion of the main pole and a portion of the spin torque oscillator. The first insulating layer has a first end closest to the medium facing surface. The spin torque oscillator has a rear end farthest from the medium facing surface. The first end of the first insulating layer is located closer to the medium facing surface than the rear end of the spin torque oscillator is.

公开(公告)号：US11514931B1

公开(公告)日：2022-11-29

申请号：US17677326

申请日：2022-02-22

申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Tetsuhito Shinohara ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Yukinori Ikegawa ,  Tetsuya Roppongi

发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Tetsuhito Shinohara ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Yukinori Ikegawa ,  Tetsuya Roppongi

IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/39 ,  G11B5/235 ,  G11B5/00

摘要： A magnetic head includes a main pole, a trailing shield, and a spin torque oscillator. A top surface of the main pole includes a first inclined portion, a second inclined portion, and a third inclined portion arranged in order of closeness to a medium facing surface. Each of the first to third inclined portions has a front end closest to the medium facing surface and a rear end farthest from the medium facing surface. Each of the first to third inclined portions is inclined relative to the medium facing surface and a direction orthogonal to the medium facing surface so that its rear end is located forward relative to its front end in a direction of travel of a recording medium.

公开(公告)号：US10803888B1

公开(公告)日：2020-10-13

申请号：US16574880

申请日：2019-09-18

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Yoji Nomura ,  Tetsuya Roppongi ,  Atsushi Yamaguchi

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Shigeki Tanemura ,  Hironori Araki ,  Yoji Nomura ,  Tetsuya Roppongi ,  Atsushi Yamaguchi

IPC分类号： G11B5/115 ,  G11B5/39 ,  C23F4/04

摘要： A manufacturing method for a magnetic head includes the steps of: forming a main pole; forming a spin torque oscillator; and forming a trailing shield. The step of forming the spin torque oscillator includes: a step of forming a layered film; a step of forming an interposition layer; a step of forming a mask; a first etching step of etching a portion of the interposition layer using the mask; a second etching step of etching a portion of the layered film using the mask and the interposition layer as an etching mask; a step of removing the interposition layer and the mask; and a patterning step of patterning the layered film into the spin torque oscillator.

公开(公告)号：US10748559B1

公开(公告)日：2020-08-18

申请号：US16801399

申请日：2020-02-26

申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Yoji Nomura ,  Shigeki Tanemura ,  Kazuki Sato ,  Tetsuya Roppongi ,  Atsushi Yamaguchi

发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Yoji Nomura ,  Shigeki Tanemura ,  Kazuki Sato ,  Tetsuya Roppongi ,  Atsushi Yamaguchi

IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/02 ,  G11B5/235

摘要： A magnetic head includes a main pole, a trailing shield, a spin torque oscillator, and a buffer layer. The buffer layer is interposed between the main pole and the spin torque oscillator. The spin torque oscillator has first and second side surfaces. The first and second side surfaces respectively form first and second angles with respect to a direction perpendicular to a top surface of a substrate. The first and second angles each fall within a range of 0° to 10°. The buffer layer has third and fourth side surfaces. The third side surface includes a first inclined portion forming a third angle greater than the first angle. The fourth side surface includes a second inclined portion forming a fourth angle greater than the second angle.

公开(公告)号：US11380353B1

公开(公告)日：2022-07-05

申请号：US17313417

申请日：2021-05-06

申请人： Yoshitaka Sasaki ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Hironori Araki ,  Tetsuhito Shinohara

发明人： Yoshitaka Sasaki ,  Shigeki Tanemura ,  Kazuki Sato ,  Yoji Nomura ,  Hironori Araki ,  Tetsuhito Shinohara

IPC分类号： G11B5/235 ,  G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/00

摘要： A magnetic head includes a main pole, a trailing shield, a spin torque oscillator, first and second side shields, first and second gap films, and first and second guard films. The first gap film and the first guard film are interposed between the trailing shield and the first side shield. The second gap film and the second guard film are interposed between the trailing shield and the second side shield.

公开(公告)号：US09030776B1

公开(公告)日：2015-05-12

申请号：US14107714

申请日：2013-12-16

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

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

IPC分类号： G11B5/39 ,  G11B5/11 ,  G11B5/17

CPC分类号： G11B5/11 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3143 ,  G11B5/315

摘要： A magnetic head includes a main pole, a write shield, and first and second nonmagnetic layers. The main pole has a top surface including an inclined surface portion. The inclined surface portion includes a first portion and a second portion, the first portion being closer to a medium facing surface. The write shield includes an inclined portion facing toward the top surface of the main pole. The first nonmagnetic layer is interposed between the inclined portion and the second portion of the inclined surface portion. The second nonmagnetic layer is interposed between the inclined portion and a combination of the first portion of the inclined surface portion and the first nonmagnetic layer.

摘要翻译： 磁头包括主极，写屏蔽以及第一和第二非磁性层。 主极具有包括倾斜表面部分的顶表面。 倾斜表面部分包括第一部分和第二部分，第一部分更靠近介质面向表面。 写入屏蔽包括面向主极的顶表面的倾斜部分。 第一非磁性层插入倾斜部分和倾斜表面部分的第二部分之间。 第二非磁性层介于倾斜部分和倾斜表面部分的第一部分与第一非磁性层的组合之间。

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。

公开(公告)号：US08587899B1

公开(公告)日：2013-11-19

申请号：US13594411

申请日：2012-08-24

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

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

IPC分类号： G11B5/127 ,  G11B5/187

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A magnetic head includes a coil, a main pole, a write shield, and a return path section. The write shield includes a bottom shield located on the rear side in the direction of travel of a recording medium relative to the main pole. The return path section is located on the rear side in the direction of travel of the recording medium relative to the main pole and connects the bottom shield and part of the main pole away from a medium facing surface so as to define a space through which part of the coil passes. The return path section is not exposed in the medium facing surface. The bottom shield includes a base part, and a protruding part protruding from the base part toward the main pole. The base part is greater than the protruding part in length in a direction perpendicular to the medium facing surface.

摘要翻译： 磁头包括线圈，主极，写入屏蔽和返回路径部分。 写入屏蔽包括位于记录介质相对于主极的行进方向的后侧的底部屏蔽。 返回路径部分位于记录介质相对于主极的行进方向的后侧，并将底部屏蔽和主极的一部分远离介质面向表面，以便限定空间 的线圈通过。 返回路径部分不会暴露在面向介质的表面中。 底罩包括基部和从基部向主极突出的突出部。 在垂直于与介质相对表面的方向上，基部的长度大于突出部分。

公开(公告)号：US08576674B2

公开(公告)日：2013-11-05

申请号：US13283064

申请日：2011-10-27

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

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

IPC分类号： G11B11/00

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

摘要： A plasmon generator configured to excite a surface plasmon based on light includes a first portion formed of a first metal material and a second portion formed of a second metal material different from the first metal material. The plasmon generator has a front end face. The front end face includes a near-field light generating part that generates near-field light based on the surface plasmon. The second portion includes an end face located in the front end face. The second metal material satisfies at least one of the following requirements: a lower ionization tendency than that of the first metal material; a lower electrical conductivity than that of the first metal material; and a higher Vickers hardness than that of the first metal material.

摘要翻译： 构造成基于光激发表面等离子体的等离子体发生器包括由第一金属材料形成的第一部分和由与第一金属材料不同的第二金属材料形成的第二部分。 等离子体发生器具有前端面。 前端面包括基于表面等离子体生成近场光的近场光产生部。 第二部分包括位于前端面中的端面。 第二金属材料满足以下要求中的至少一个：比第一金属材料低的电离倾向; 电导率低于第一金属材料; 并且维氏硬度高于第一金属材料的硬度。