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：US09958769B1

公开(公告)日：2018-05-01

申请号：US15387066

申请日：2016-12-21

申请人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Seiichiro Tomita ,  Shigeki Tanemura ,  Yukinori Ikegawa

发明人： Hironori Araki ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Seiichiro Tomita ,  Shigeki Tanemura ,  Yukinori Ikegawa

IPC分类号： G03F1/38 ,  G03F7/09 ,  G11B5/31 ,  G11B5/00

CPC分类号： G03F1/38 ,  G03F7/094 ,  G11B5/3169 ,  G11B2005/0021

摘要： A plasmon generator including a wide portion and a narrow portion is manufactured by etching an initial plasmon generator using an etching mask. The etching mask includes a first mask layer for defining the shape of one of the narrow portion and the wide portion, and a second mask layer for defining the shape of the other of the narrow portion and the wide portion. The etching mask is formed by forming a first hard mask, a second initial mask layer and a second hard mask in this order on a first initial mask layer, and etching the first and second initial mask layers by using the first and second hard masks.

公开(公告)号：US09659588B2

公开(公告)日：2017-05-23

申请号：US14825020

申请日：2015-08-12

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Hideo Mamiya

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Shigeki Tanemura ,  Hironori Araki ,  Seiichiro Tomita ,  Hideo Mamiya

IPC分类号： G11B5/127 ,  G11B5/48 ,  G11B5/31 ,  G11B5/187 ,  G11B5/11 ,  G11B5/00 ,  G11B5/60 ,  G11B5/012

CPC分类号： G11B5/4866 ,  G11B5/012 ,  G11B5/11 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/313 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/60 ,  G11B5/6088 ,  G11B2005/0021

摘要： A main pole has a front end face including a first end face portion and a second end face portion. A plasmon generator has a near-field light generating surface. A surrounding layer has a first surrounding layer end face and a second surrounding layer end face located on opposite sides of the first end face portion in the track width direction. A gap film has a first gap film end face and a second gap film end face located on opposite sides of the near-field light generating surface in the track width direction. Each of the first and second gap film end faces includes a portion located between the first and second surrounding layer end faces, but does not include any portion interposed between the first surrounding layer end face and the first end face portion or between the second surrounding layer end face and the first end face portion.

公开(公告)号：US20170125042A1

公开(公告)日：2017-05-04

申请号：US14930084

申请日：2015-11-02

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Shigeki TANEMURA ,  Kenichi TAKANO

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Shigeki TANEMURA ,  Kenichi TAKANO

IPC分类号： G11B5/127 ,  G11B5/39

CPC分类号： G11B5/17 ,  G11B5/1278 ,  G11B5/3123

摘要： A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

公开(公告)号：US09478241B1

公开(公告)日：2016-10-25

申请号：US15019428

申请日：2016-02-09

申请人： Shigeki Tanemura ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Xuhui Jin ,  Hideo Mamiya ,  Yukinori Ikegawa

发明人： Shigeki Tanemura ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Xuhui Jin ,  Hideo Mamiya ,  Yukinori Ikegawa

IPC分类号： G11B11/00 ,  G11B5/48 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00 ,  G11B11/105

CPC分类号： G11B5/6088 ,  G11B5/314 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a main pole, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The main pole and the core are located on the same side in the direction of travel of a recording medium relative to the plasmon generator. The main pole has a first end face located in the medium facing surface, and a second end face opposite to the first end face. The core has a front end face opposed to the second end face of the main pole. The cladding includes an interposition section interposed between the front end face of the core and the second end face of the main pole. The front end face of the core and the second end face of the main pole are inclined with respect to the medium facing surface.

摘要翻译： 热辅助磁记录头包括主极，波导和等离子体发生器。 波导包括芯和包层。 主磁极和磁芯位于记录介质相对于等离子体发生器的行进方向的同一侧。 主极具有位于介质面对表面中的第一端面和与第一端面相对的第二端面。 芯具有与主极的第二端面相对的前端面。 包层包括插入在芯的前端面和主极的第二端面之间的插入部分。 芯的前端面和主极的第二端面相对于介质面向表面倾斜。

公开(公告)号：US20160210994A1

公开(公告)日：2016-07-21

申请号：US14600460

申请日：2015-01-20

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Hideo MAMIYA ,  Hironori ARAKI ,  Seiichiro TOMITA

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Hideo MAMIYA ,  Hironori ARAKI ,  Seiichiro TOMITA

IPC分类号： G11B7/1387 ,  G11B5/48 ,  G11B5/127 ,  G11B5/17

CPC分类号： G11B5/314 ,  G11B5/012 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a main pole and a plasmon generator. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion and a second end face portion. The second end face portion is located farther from the near-field light generating surface than is the first end face portion, and is greater than the first end face portion in width in the track width direction. The first end face portion and the near-field light generating surface are equal in width.

摘要翻译： 热辅助磁记录头包括主极和等离子体发生器。 主杆具有位于介质面对表面中的前端面。 等离子体发生器具有位于介质面对表面中的近场光产生表面。 主极的前端面包括第一端面部分和第二端面部分。 所述第二端面部位于比所述第一端面部远离所述近场光产生面的位置，并且比所述第一端面部宽度大于所述轨道宽度方向。 第一端面部分和近场光产生表面的宽度相等。

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。

公开(公告)号：US09324341B2

公开(公告)日：2016-04-26

申请号：US14083088

申请日：2013-11-18

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

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

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

CPC分类号： G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/3133 ,  G11B5/607 ,  G11B2005/0021

摘要： A magnetic head includes a main pole, an expansion member, and a heater. The main pole has an end face located in a medium facing surface. The expansion member is located farther from the medium facing surface than is the main pole and adjacent to the main pole in a direction perpendicular to the medium facing surface. The heater heats the expansion member. The expansion member has a linear expansion coefficient higher than that of the main pole.

摘要翻译： 磁头包括主极，膨胀构件和加热器。 主极具有位于面向介质的表面中的端面。 膨胀构件比垂直于与介质相对的表面垂直的方向远离中心面向表面远离主极并且与主极相邻。 加热器加热膨胀件。 膨胀构件的线膨胀系数高于主极的线膨胀系数。

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。

公开(公告)号：US20160055869A1

公开(公告)日：2016-02-25

申请号：US14832230

申请日：2015-08-21

申请人： Yoshitaka SASAKI ,  Kazuki SATO ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazumasa YASUDA

发明人： Yoshitaka SASAKI ,  Kazuki SATO ,  Hiroyuki ITO ,  Hironori ARAKI ,  Shigeki TANEMURA ,  Kazumasa YASUDA

IPC分类号： G11B5/39 ,  G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/1272 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  G11B5/3967 ,  Y10T29/49048

摘要： A first side shield has a first sidewall and a second sidewall. A second side shield has a third sidewall and a fourth sidewall. The distance between the first sidewall and the third sidewall decreases with increasing proximity to the top surface of a substrate. The second and fourth sidewalls are close to perpendicular to the top surface of the substrate. Each of the second and fourth sidewalls has an edge farthest from the top surface of the substrate, the edge being parallel to the medium facing surface. The main pole has a first, a second, a third and a fourth side surface. The first side surface is opposed to the first sidewall. A portion of the second side surface is opposed to the second sidewall. The third side surface is opposed to the third sidewall. A portion of the fourth side surface is opposed to the fourth sidewall.

摘要翻译： 第一侧屏蔽件具有第一侧壁和第二侧壁。 第二侧屏蔽件具有第三侧壁和第四侧壁。 第一侧壁和第三侧壁之间的距离随着靠近衬底顶表面的增加而减小。 第二和第四侧壁靠近垂直于基板的顶表面。 第二和第四侧壁中的每一个具有距衬底顶表面最远的边缘，该边缘平行于介质面向表面。 主极具有第一，第二，第三和第四侧面。 第一侧表面与第一侧壁相对。 第二侧表面的一部分与第二侧壁相对。 第三侧面与第三侧壁相对。 第四侧面的一部分与第四侧壁相对。