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：US11495251B1

公开(公告)日：2022-11-08

申请号：US17573945

申请日：2022-01-12

申请人： Yukinori Ikegawa ,  Yoshitaka Sasaki ,  Kazuki Sato ,  Shigeki Tanemura

发明人： Yukinori Ikegawa ,  Yoshitaka Sasaki ,  Kazuki Sato ,  Shigeki Tanemura

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

摘要： A write shield of a magnetic head includes a pair of first side shields and a pair of second side shields. The pair of first side shields each include a first side wall and a second side wall. The pair of second side shields each include a third side wall. The third side wall of one of the pair of second side shields is continuous with the first side wall of one of the pair of first side shields. The third side wall of the other of the pair of second side shields is continuous with the first side wall of the other of the pair of first side shields.

公开(公告)号：US09495980B1

公开(公告)日：2016-11-15

申请号：US14886900

申请日：2015-10-19

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Kazumasa Yasuda ,  Kenichi Takano

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Kazumasa Yasuda ,  Kenichi Takano

IPC分类号： G11B5/127 ,  G11B5/39

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

摘要： A magnetic head includes a coil, a main pole and a return path section. The return path section includes a yoke section, and a coupling section coupling the yoke section to the main pole. The coil includes a first coil portion surrounding at least part of an outer peripheral surface of the coupling section, and a second coil portion surrounding at least part of the entire perimeter of the main pole as viewed from the medium facing surface. The winding of the coil includes a common portion used in common to form part of the first coil portion and part of the second coil portion.

摘要翻译： 磁头包括线圈，主极和返回路径部分。 返回通路部分包括轭部，以及将轭部连接到主极的耦合部。 线圈包括围绕耦合部分的外周表面的至少一部分的第一线圈部分和围绕从介质面向表面观察的主极的整个周边的至少一部分的第二线圈部分。 线圈的绕组包括共同使用的共同部分，以形成第一线圈部分的一部分和第二线圈部分的一部分。

公开(公告)号：US08780497B2

公开(公告)日：2014-07-15

申请号：US13493652

申请日：2012-06-11

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Seiichiro Tomita ,  Hironori Araki ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Seiichiro Tomita ,  Hironori Araki ,  Tatsuya Shimizu

IPC分类号： G11B5/17

CPC分类号： G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123

摘要： A magnetic head includes first and second coils, a main pole, a write shield, a return path section, and a core part. The return path section includes a yoke part magnetically connected to the write shield, and a coupling part located away from a medium facing surface and magnetically coupling the yoke part and the main pole to each other. The first coil is located on the front side in the direction of travel of a recording medium relative to the main pole and wound around the coupling part. The core part is located farther from the medium facing surface than is the coupling part, and is magnetically connected to the main pole. The second coil is located on the front side in the direction of travel of the recording medium relative to the main pole and wound around the core part.

摘要翻译： 磁头包括第一和第二线圈，主极，写入屏蔽，返回路径部分和核心部分。 返回路径部包括磁性地连接到写入屏蔽的轭部，以及远离介质面的表面并且将轭部和主极彼此磁耦合的耦合部。 第一线圈位于记录介质相对于主极的行进方向的前侧，并缠绕在联接部上。 核心部分位于与介质相对表面比耦合部分更远的位置，并且与主极磁性连接。 第二线圈位于记录介质相对于主极的行进方向的前侧，并缠绕在芯部上。

公开(公告)号：US09218835B1

公开(公告)日：2015-12-22

申请号：US14475090

申请日：2014-09-02

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Yukinori Ikegawa ,  Seiichiro Tomita ,  Hideo Mamiya

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Yukinori Ikegawa ,  Seiichiro Tomita ,  Hideo Mamiya

IPC分类号： G11B11/00 ,  G11B5/48 ,  G11B5/00 ,  G11B5/17 ,  G11B5/31 ,  G11B5/60

CPC分类号： G11B5/4866 ,  G11B5/17 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a main pole and a heat sink. The heat sink includes two first portions and two second portions. The two first portions are located on opposite sides of the main pole in the track width direction and are each spaced from the main pole. The two second portions are located between the main pole and the two first portions. The main pole and the two first portions are each formed of a magnetic metal. The two second portions are formed of a nonmagnetic metal.

摘要翻译： 热辅助磁记录头包括主极和散热器。 散热器包括两个第一部分和两个第二部分。 两个第一部分位于主磁极的轨道宽度方向的相对侧上，并且与主极分开。 两个第二部分位于主极和两个第一部分之间。 主极和两个第一部分各自由磁性金属形成。 两个第二部分由非磁性金属形成。

公开(公告)号：US08767347B1

公开(公告)日：2014-07-01

申请号：US13903438

申请日：2013-05-28

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Kazumasa Yasuda ,  Tatsuya Shimizu

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Kazumasa Yasuda ,  Tatsuya Shimizu

IPC分类号： G11B5/147 ,  G11B5/187

CPC分类号： G11B5/315 ,  G11B5/1278

摘要： A main pole has an end face located in a medium facing surface, and first through sixth side surfaces. The first and third side surfaces are connected to the end face of the main pole. The second and fourth side surfaces are located farther from the medium facing surface than are the first and third side surfaces. The fifth side surface connects the first side surface to the second side surface. The sixth side surface connects the third side surface to the fourth side surface. The distance between the first side surface and the third side surface decreases with increasing proximity to the top surface of the substrate. The shape of the first side surface is defined by a first side shield. The shape of the third side surface is defined by a second side shield.

摘要翻译： 主极具有位于面向介质的表面中的端面以及第一至第六侧表面。 第一和第三侧表面连接到主极的端面。 第二和第四侧表面比第一和第三侧表面更远离介质面对表面。 第五侧表面将第一侧表面连接到第二侧表面。 第六侧面将第三侧面与第四侧面连接。 第一侧表面和第三侧表面之间的距离随着靠近衬底顶表面的增加而减小。 第一侧面的形状由第一侧面屏蔽限定。 第三侧面的形状由第二侧面屏蔽限定。

公开(公告)号：US10366712B1

公开(公告)日：2019-07-30

申请号：US15880458

申请日：2018-01-25

申请人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Yukinori Ikegawa ,  Yoji Nomura

发明人： Yoshitaka Sasaki ,  Hiroyuki Ito ,  Kazuki Sato ,  Hironori Araki ,  Yukinori Ikegawa ,  Yoji Nomura

IPC分类号： G11B5/11 ,  G11B5/127 ,  G11B5/31 ,  G11B5/60

摘要： A first side shield has a first sidewall and a second sidewall, and a second side shield has a third sidewall and a fourth sidewall. The first to fourth sidewalls have first to fourth edges, respectively, that are farthest from a top surface of a substrate. The distance between a rear end of the first edge and a rear end of the third edge in a track width direction is greater than the distance between a front end of the first edge and a front end of the third edge in the track width direction. The distance between the second edge and the fourth edge in the track width direction increases with increasing distance from the medium facing surface.

公开(公告)号：US09218827B1

公开(公告)日：2015-12-22

申请号：US14335528

申请日：2014-07-18

申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Hideo Mamiya ,  Hironori Araki ,  Yukinori Ikegawa

发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Hideo Mamiya ,  Hironori Araki ,  Yukinori Ikegawa

IPC分类号： G11B11/00 ,  G11B5/17 ,  G11B5/00 ,  G11B11/24

CPC分类号： G11B5/17 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3146 ,  G11B11/24 ,  G11B2005/0021

摘要： A return path section includes a first yoke portion located on the front side in the direction of travel of a recording medium relative to a main pole and in contact with the top surface of the main pole. A coil includes a plurality of coil elements extending to pass between a core of a waveguide and the first yoke portion. The plurality of coil elements include a specific coil element. The main pole rides over the specific coil element.

摘要翻译： 返回路径部分包括位于记录介质相对于主极的行进方向的前侧上并与主极的顶表面接触的第一磁轭部分。 线圈包括多个线圈元件，其延伸穿过波导的芯和第一轭部之间。 多个线圈元件包括特定的线圈元件。 主杆骑在特定的线圈元件上。

公开(公告)号：US08289649B2

公开(公告)日：2012-10-16

申请号：US12960954

申请日：2010-12-06

申请人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Takehiro Horinaka ,  Kazumasa Yasuda

发明人： Yoshitaka Sasaki ,  Kazuki Sato ,  Hiroyuki Ito ,  Takehiro Horinaka ,  Kazumasa Yasuda

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163 ,  Y10T29/49032

摘要： A magnetic head includes a main magnetic pole, a shield having an end face located in a medium facing surface to wrap around an end face of the main magnetic pole, and a gap part provided between the main magnetic pole and the shield. The shield includes a bottom shield, two side shields, and a top shield. The gap part includes first and second gap layers. In a manufacturing method of the magnetic head, a mold is formed on the top surface of the bottom shield, the mold having a shape determined by photolithography and being intended to be removed later. Next, the two side shields are formed on the top surface of the bottom shield by performing plating without forming a seed layer. Next, the mold is removed and then the first gap layer, the main magnetic pole, the second gap layer, and the top shield are formed in succession.

摘要翻译： 磁头包括主磁极，屏蔽，其具有位于介质面向表面中的端面以围绕主磁极的端面，以及设置在主磁极和屏蔽之间的间隙部分。 屏蔽包括底部屏蔽，两个侧面屏蔽和顶部屏蔽。 间隙部分包括第一和第二间隙层。 在磁头的制造方法中，在底部屏蔽的顶面上形成有模具，该模具具有通过光刻法确定的形状并且稍后被去除。 接下来，通过进行电镀而不形成种子层，在底部屏蔽的顶表面上形成两个侧面屏蔽。 接下来，移除模具，然后依次形成第一间隙层，主磁极，第二间隙层和顶部屏蔽。

公开(公告)号：US08582248B2

公开(公告)日：2013-11-12

申请号：US12929198

申请日：2011-01-06

申请人： Chiuming Lueng ,  Kazuki Sato ,  Yohei Koyanagi ,  Cheukwing Leung ,  Juren Ding ,  Rongkwang Ni ,  Wanyin Kwan ,  Siuman Mok

发明人： Chiuming Lueng ,  Kazuki Sato ,  Yohei Koyanagi ,  Cheukwing Leung ,  Juren Ding ,  Rongkwang Ni ,  Wanyin Kwan ,  Siuman Mok

IPC分类号： G11B5/39

CPC分类号： G11B5/3912 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3909 ,  G11B2005/3996

摘要： A MR sensor comprises a first shielding layer, a second shielding layer, a MR element and a pair of hard magnet layers sandwiched therebetween, and a non-magnetic insulating layer formed at a side of the MR element far from an air bearing surface of a slider. The MR sensor further comprises a first non-magnetic conducting layer formed between the first shielding layer and the MR element, and the first non-magnetic conducting layer is embedded in the first shielding layer and kept separate from the ABS. The MR sensor of the invention can obtain a narrower read gap to increase the resolution power and improve the reading performance, and obtain a strong longitudinal bias field to stabilize the MR sensor so as to increase the total sensor area and, in turn, get an improved reliability and performance. The present invention also discloses a magnetic head, a HGA and a disk drive unit.

摘要翻译： MR传感器包括第一屏蔽层，第二屏蔽层，MR元件和夹在其间的一对硬磁体层，以及形成在MR元件的远离空气轴承表面的一侧的非磁性绝缘层 滑块 MR传感器还包括形成在第一屏蔽层和MR元件之间的第一非磁性导电层，并且第一非导电层嵌入第一屏蔽层中并与ABS分离。 本发明的MR传感器可以获得更窄的读取间隙，以提高分辨率和提高读取性能，并获得强的纵向偏置场以稳定MR传感器，从而增加总传感器面积，从而获得 提高可靠性和性能。 本发明还公开了一种磁头，HGA和盘驱动单元。