公开(公告)号：US20160099015A1

公开(公告)日：2016-04-07

申请号：US14869087

申请日：2015-09-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yuuzo KAMIGUCHI ,  Hitoshi IWASAKI ,  Masayuki TAKAGISHI ,  Tomomi FUNAYAMA ,  Kenichiro YAMADA ,  Satoshi SHIROTORI ,  Susumu HASHIMOTO

IPC: G11B5/48 ,  G11B5/60 ,  G11B5/127 ,  G11B5/11 ,  G11B5/31

CPC classification number: G11B5/4853 ,  G11B5/02 ,  G11B5/11 ,  G11B5/3903 ,  G11B5/3906 ,  G11B5/398

Abstract: A magnetic head according to an embodiment includes: a non-local spin valve element with three terminals including a nonmagnetic base layer, a first terminal including a first magnetic layer, a second terminal including a second magnetic layer, and a third terminal including a third magnetic layer; and a slider including a first external lead terminal connecting to the first terminal, a second external lead terminal connecting to the second terminal, and a third external lead terminal connecting to the third terminal, in an operation, a first current being caused to flow from the second external lead terminal to the third terminal via the second terminal and the nonmagnetic base layer, and a second current that is lower than the first current being caused to flow to the first terminal.

Abstract translation: 根据实施例的磁头包括：非局部自旋阀元件，具有包括非磁性基底层的三个端子，包括第一磁性层的第一端子，包括第二磁性层的第二端子和包括第三磁性层的第三端子 磁性层 以及滑块，其包括连接到所述第一端子的第一外部引线端子，连接到所述第二端子的第二外部引线端子和连接到所述第三端子的第三外部引线端子，在操作中，使第一电流从 经由第二端子和非磁性基层到第三端子的第二外部引线端子，以及低于第一电流的第二电流流向第一端子。

公开(公告)号：US20160111118A1

公开(公告)日：2016-04-21

申请号：US14722610

申请日：2015-05-27

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tomomi FUNAYAMA

IPC: G11B5/48 ,  G11B5/17 ,  G11B5/127 ,  G11B5/60

CPC classification number: G11B5/4853 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0024

Abstract: A magnetic head includes a main magnetic pole that applies a recording magnetic field to a recording layer of a recording medium, a recording coil that generates a magnetic field in the main magnetic pole, a microwave oscillator that is disposed in a vicinity of the main magnetic pole, a first wiring electrically connected to recording coil, a second wiring electrically connected to the microwave oscillator, and a low pass filter that is electrically connected to the second wiring.

Abstract translation: 磁头包括向记录介质的记录层施加记录磁场的主磁极，在主磁极中产生磁场的记录线圈，设置在主磁场附近的微波振荡器 电连接到记录线圈的第一布线，与微波振荡器电连接的第二布线，以及电连接到第二布线的低通滤波器。

公开(公告)号：US20140376130A1

公开(公告)日：2014-12-25

申请号：US14152974

申请日：2014-01-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihiko TAKEO ,  Kazuto KASHIWAGI ,  Kenichiro YAMADA ,  Katsuhiko KOUI ,  Tomomi FUNAYAMA

IPC: G11B5/31

CPC classification number: G11B5/3163 ,  G11B5/29 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3932 ,  G11B5/3958 ,  G11B5/4886 ,  G11B5/4976

Abstract: A magnetic head includes a plurality of reproducing elements so that the magnetic head can acquire reproduction signals from a plurality of tracks at the same time. The magnetic head includes a first reproducing element, a first magnetic film formed on a first side wall of the first reproducing element with a first side wall insulating film interposed therebetween, a second magnetic film formed on a second side wall of the first reproducing element with a second side wall insulating film interposed therebetween, a second reproducing element electrically isolated from the first reproducing element and formed on the first magnetic film, a third magnetic film formed on the first magnetic film, and a fourth magnetic film formed on the first reproducing element and electrically isolated from the second reproducing element.

Abstract translation: 磁头包括多个再现元件，使得磁头可以同时从多个轨迹获取再现信号。 磁头包括第一再现元件，形成在第一再现元件的第一侧壁上的第一磁性膜，其间插入有第一侧壁绝缘膜，形成在第一再现元件的第二侧壁上的第二磁性膜， 介于其间的第二侧壁绝缘膜，与第一再现元件电隔离并形成在第一磁性膜上的第二再现元件，形成在第一磁性膜上的第三磁性膜和形成在第一再现元件上的第四磁性膜 并且与第二再现元件电隔离。

公开(公告)号：US20130329317A1

公开(公告)日：2013-12-12

申请号：US13966126

申请日：2013-08-13

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kenichiro YAMADA ,  Hitoshi IWASAKI ,  Junichi AKIYAMA ,  Masayuki TAKAGISHI ,  Tomomi FUNAYAMA ,  Masahiro TAKASHITA ,  Mariko SHIMIZU ,  Shuichi MURAKAMI ,  Tadashi KAI

IPC: G11B5/17

CPC classification number: G11B5/17 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3133 ,  G11B5/3146 ,  G11B2005/0002 ,  G11B2005/0024

Abstract: An example magnetic writing head includes a main magnetic pole and a coil to generate an ampere magnetic field to magnetize the main magnetic pole to cause the magnetized main magnetic pole to generate a magnetic field. The laminated body includes a first magnetic layer, and a second magnetic layer.

Abstract translation: 磁性写入头包括主磁极和线圈，用于产生安培磁场，以磁化主磁极，使磁化的主磁极产生磁场。 层叠体包括第一磁性层和第二磁性层。

公开(公告)号：US20130316088A1

公开(公告)日：2013-11-28

申请号：US13706157

申请日：2012-12-05

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norihito FUJITA ,  Shinobu SUGIMURA ,  Satoshi SHIROTORI ,  Tomohiko NAGATA ,  Akio HORI ,  Tomomi FUNAYAMA

IPC: G11B5/84

CPC classification number: G11B5/84 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  G11B2005/0021

Abstract: According to one embodiment, a magnetic recording head manufacturing method characterized by includes processes of forming a main pole, forming, on the main pole, an insulating layer having a gap for forming a spin torque oscillator, forming a spin torque oscillator in the gap, and forming an auxiliary magnetic pole on the spin torque oscillator is provided.

Abstract translation: 根据一个实施例，一种磁记录头制造方法，其特征在于包括：形成主极，在主极上形成具有用于形成自旋扭矩振荡器的间隙的绝缘层，在间隙中形成自旋转矩振荡器的工艺， 并且在自旋转矩振荡器上形成辅助磁极。

公开(公告)号：US20150092301A1

公开(公告)日：2015-04-02

申请号：US14174711

申请日：2014-02-06

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Norihito FUJITA ,  Satoshi SHIROTORI ,  Shinobu SUGIMURA ,  Tomomi FUNAYAMA

IPC: G11B5/23

CPC classification number: G11B5/23 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3146 ,  G11B2005/0024

Abstract: A recording head of a disk device includes a main magnetic pole, a write shield which faces the main magnetic pole with a write gap interposed therebetween, a coil configured to generate a magnetic field in the main magnetic pole, and a spin torque oscillator which is arranged in the write gap. The spin torque oscillator includes an intermediate layer formed on the main magnetic pole, a field generation layer formed on the intermediate layer, a spin injection layer, and an interface magnetic layer. The field generation layer and the spin injection layer are arranged in parallel to each other in the direction which intersects with the gap length direction of the write gap, and the spin injection layer is electrically connected with the write shield.

Abstract translation: 磁盘装置的记录头包括主磁极，面对主磁极的写屏蔽，其中插入有写入间隙，被配置为在主磁极中产生磁场的线圈，以及自旋扭矩振荡器，其是 排列在写入间隙。 自旋扭矩振荡器包括形成在主磁极上的中间层，形成在中间层上的场产生层，自旋注入层和界面磁性层。 场产生层和自旋注入层在与写入间隙的间隙长度方向相交的方向上彼此平行地布置，并且自旋注入层与写入屏蔽电连接。

公开(公告)号：US20150015992A1

公开(公告)日：2015-01-15

申请号：US14022411

申请日：2013-09-10

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tomomi FUNAYAMA

IPC: G11B5/23 ,  G11B19/20 ,  G11B5/127

CPC classification number: G11B5/23 ,  G11B5/1278 ,  G11B5/235 ,  G11B5/3143 ,  G11B2005/0024

Abstract: According to one embodiment, a magnetic recording head includes a main pole, a write shield facing the main pole with a write gap interposed therebetween, a recording coil, and a high-frequency oscillator including an oscillation layer provided within the write gap between an end portion of the main pole and the write shield, and an intermediate layer and a spin-injection layer stacked on the oscillation layer. The oscillation layer, the intermediate layer and the spin-injection layer are stacked in a direction intersecting the gap length direction of the write gap, and at least one of the oscillation layer and the spin-injection layer is electrically connected to one of the main pole and the write shield.

Abstract translation: 根据一个实施例，磁记录头包括主极，面对主极的写入屏蔽，其中插入有写入间隙，记录线圈和高频振荡器，其包括设置在写入间隙内的振荡层， 主磁极和写屏蔽的部分，以及堆叠在振荡层上的中间层和自旋注入层。 振荡层，中间层和自旋注入层在与写入间隙的间隙长度方向交叉的方向上堆叠，并且振荡层和自旋注入层中的至少一个电连接到主体 极和写屏蔽。