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：US09378762B1

公开(公告)日：2016-06-28

申请号：US14750589

申请日：2015-06-25

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

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

IPC分类号： G11B5/02 ,  G11B11/00 ,  G11B5/48 ,  G11B5/00

CPC分类号： G11B5/6088 ,  G02B6/122 ,  G11B5/3116 ,  G11B5/314 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a waveguide, a first plasmon generator, and a second plasmon generator. The waveguide includes a core and a cladding. The first plasmon generator is located on the leading side of the core. The second plasmon generator is located on the trailing side of the core. The cladding includes a first interposition section and a second interposition section, the first interposition section being interposed between the core and the first plasmon generator, the second interposition section being interposed between the core and the second plasmon generator.

摘要翻译： 热辅助磁记录头包括波导，第一等离子体发生器和第二等离子体发生器。 波导包括芯和包层。 第一等离子体发生器位于核心的前端。 第二等离子体发生器位于芯的后侧。 所述包层包括第一插入部分和第二插入部分，所述第一插入部分介于所述芯部和所述第一等离子体发生器之间，所述第二插入部分介于所述芯部和所述第二等离子体发生器之间。

公开(公告)号：US09251812B2

公开(公告)日：2016-02-02

申请号：US14319681

申请日：2014-06-30

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

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

IPC分类号： G11B5/11 ,  G11B5/31 ,  G11B5/127 ,  G11B5/17

CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  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。

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。

公开(公告)号：US08614932B1

公开(公告)日：2013-12-24

申请号：US13621532

申请日：2012-09-17

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： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A plasmon generator has a near-field light generating part located between an end face of a main pole located in a medium facing surface and an end face of a shield located in the medium facing surface. A waveguide has a core having a front end face facing toward the medium facing surface. The front end face has first and second end portions located at opposite ends in the direction of travel of a recording medium. The first end portion is located closer to the near-field light generating part than is the second end portion. Either a main pole or a shield overlaps only a region of the front end face of the core when viewed in a direction perpendicular to the medium facing surface, the region extending from a midpoint position between the first and second end portions to the first end portion.

摘要翻译： 等离子体发生器具有近场光产生部件，位于介质面向表面的主极的端面与位于介质相对表面的屏蔽的端面之间。 波导具有芯部，其具有面向介质面向表面的前端面。 前端面具有位于记录介质的行进方向上的相对端的第一和第二端部。 第一端部比第二端部更靠近近场光产生部。 当从与第一和第二端部之间的中点位置延伸到第一端部区域的区域中时，主极或屏蔽物仅在芯的前端面的区域中重叠， 。

公开(公告)号：US08593762B1

公开(公告)日：2013-11-26

申请号：US13722378

申请日：2012-12-20

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： G11B5/1278 ,  G11B5/3123 ,  G11B5/315

摘要： A magnetic head includes a coil, a main pole, a write shield, first and second yoke layers, and first and second coupling parts. The first yoke layer is located on the trailing side relative to the main pole whereas the second yoke layer is located on the leading side relative to the main pole. The first coupling part couples the main pole and the first yoke layer to each other. The second coupling part couples the first yoke layer and the second yoke layer to each other. The first coupling part includes a plurality of first magnetic path portions, and the second coupling part includes a plurality of second magnetic path portions. The coil includes one winding portion extending to pass around the first and second magnetic path portions alternately in a zigzag manner.

摘要翻译： 磁头包括线圈，主极，写屏蔽，第一和第二磁轭层，以及第一和第二耦合部分。 第一磁轭层位于相对于主极的后侧，而第二磁轭层位于相对于主极的前侧。 第一耦合部分将主极和第一磁轭层彼此耦合。 第二耦合部分将第一磁轭层和第二磁轭层彼此耦合。 第一耦合部分包括多个第一磁路部分，第二耦合部分包括多个第二磁路部分。 线圈包括以Z字形方式交替地绕第一和第二磁路部分延伸的一个绕组部分。

公开(公告)号：US08514516B2

公开(公告)日：2013-08-20

申请号：US13344081

申请日：2012-01-05

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

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

IPC分类号： G11B5/147

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49021

摘要： A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, a thin-film coil and a shield magnetic layer are laminated on a substrate. The thin-film magnetic head has a shield magnetic layer. This thin-film magnetic head has a hard guard frame layer surrounding an equidistant coil part, disposed at a position equidistant from the substrate, from outside and being in direct contact with almost a whole outside surface defining an outer shape of the equidistant coil part.

摘要翻译： 薄膜磁头被构造成使得主磁极层，写入屏蔽层，间隙层，薄膜线圈和屏蔽磁性层被层压在基板上。 薄膜磁头具有屏蔽磁性层。 该薄膜磁头具有围绕等离子体线圈部分的等距线圈部分的硬保护框架层，其设置在距离基板等距离的位置，并且与限定等距线圈部分的外部形状的几乎整个外表面直接接触。

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。

公开(公告)号：US08477452B2

公开(公告)日：2013-07-02

申请号：US12964202

申请日：2010-12-09

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

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

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278

摘要： A bottom end of a main pole includes first, second, and third portions that are contiguously arranged in order of increasing distance from the medium facing surface. A top surface of the main pole includes fourth, fifth, and sixth portions that are contiguously arranged in order of increasing distance from the medium facing surface. A distance from the top surface of the substrate to any given point on each of the first and second portions decreases with increasing distance from the given point to the medium facing surface. The second portion has an angle of inclination greater than that of the first portion with respect to a direction perpendicular to the medium facing surface. A distance from the top surface of the substrate to any given point on each of the fourth and fifth portions increases with increasing distance from the given point to the medium facing surface. The fifth portion has an angle of inclination greater than that of the fourth portion with respect to the direction perpendicular to the medium facing surface.

摘要翻译： 主极的底端包括第一，第二和第三部分，其按照从与介质面向表面的距离增加的顺序连续排列。 主极的顶表面包括第四，第五和第六部分，其顺序地依次布置成与介质面向表面的距离。 从基板的顶表面到每个第一和第二部分上的任何给定点的距离随着从给定点到介质面向表面的距离的增加而减小。 第二部分相对于与面向介质的表面垂直的方向具有大于第一部分的倾斜角。 随着从给定点到面向介质的表面的距离的增加，从衬底的顶表面到每个第四和第五部分上的任何给定点的距离增加。 第五部分相对于与面向介质的表面垂直的方向具有大于第四部分的倾斜角。

公开(公告)号：US08427781B1

公开(公告)日：2013-04-23

申请号：US13569682

申请日：2012-08-08

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： G11B5/147

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/315

摘要： A magnetic head with a main pole is provided. The main pole has a bottom end including an inclined portion. A write shield has a first inclined surface opposed to the inclined portion and a second inclined surface that is located farther from a medium facing surface than is the first inclined surface. The first inclined surface has a first end located in the medium facing surface and a second end opposite thereto. The second inclined surface has a third end connected to the second end and a fourth end opposite thereto. The second inclined surface forms a greater angle than does the first inclined surface relative to a direction perpendicular to the medium facing surface. The distance between the main pole and an arbitrary point on the second inclined surface increases with decreasing distance between the arbitrary point and the fourth end.

摘要翻译： 提供具有主极的磁头。 主极具有包括倾斜部分的底端。 写屏蔽具有与倾斜部相对的第一倾斜表面和位于比第一倾斜表面更远离介质相对表面的第二倾斜表面。 第一倾斜表面具有位于介质面向表面中的第一端和与其相对的第二端。 第二倾斜表面具有连接到第二端的第三端和与其相对的第四端。 第二倾斜面相对于与面向介质的表面垂直的方向形成比第一倾斜面更大的角度。 主极与第二倾斜面上的任意点之间的距离随着任意点与第四端之间的距离的减小而增加。