公开(公告)号：US08081397B2

公开(公告)日：2011-12-20

申请号：US12457674

申请日：2009-06-18

申请人： Tomomi Funayama ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa

发明人： Tomomi Funayama ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3153 ,  G11B2005/0005

摘要： A magnetic head assembly includes a magnetic recording head, a main magnetic pole, a head slider, a suspension and an actuator arm. The magnetic recording head includes a main magnetic pole having an air bearing surface facing a magnetic recording medium; and a stacked structure having, a first magnetic layer, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. A stacked plane of the stacked structure is inclined with respect to the air bearing surface. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to the other end of the suspension.

摘要翻译： 磁头组件包括磁记录头，主磁极，磁头滑块，悬架和致动器臂。 磁记录头包括具有面向磁记录介质的空气轴承表面的主磁极; 以及具有第一磁性层，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层的层叠结构。 堆叠结构的层叠平面相对于空气轴承表面倾斜。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。

公开(公告)号：US20110205655A1

公开(公告)日：2011-08-25

申请号：US12737691

申请日：2011-02-07

申请人： Mariko Shimizu ,  Hitoshi Iwasaki ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Soichi Oikawa

发明人： Mariko Shimizu ,  Hitoshi Iwasaki ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Soichi Oikawa

IPC分类号： G11B5/39 ,  G11B5/48 ,  G11B5/02 ,  G11B5/09

CPC分类号： G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B2005/0005 ,  G11B2005/0024

摘要： According to one embodiment, a magnetic recording head includes a main magnetic pole, a shield, and a stacked structure body. The shield is provided to oppose the main magnetic pole. The stacked structure body is provided between the main magnetic pole and the shield. The stacked structure body includes a first magnetic layer, a second magnetic layer, and an intermediate layer. The first magnetic layer has coercivity lower than a magnetic field applied from the main magnetic pole. A size of a film surface of the second magnetic layer is larger than a size of a film surface of the first magnetic layer. The intermediate layer is provided between the first magnetic layer and the second magnetic layer and is made of a nonmagnetic material. A current is configured to pass between the first magnetic layer and the second magnetic layer.

摘要翻译： 根据一个实施例，磁记录头包括主磁极，屏蔽和堆叠结构体。 提供屏蔽以与主磁极相对。 堆叠结构体设置在主磁极和屏蔽之间。 叠层结构体包括第一磁性层，第二磁性层和中间层。 第一磁性层具有低于从主磁极施加的磁场的矫顽力。 第二磁性层的膜表面的尺寸大于第一磁性层的膜表面的尺寸。 中间层设置在第一磁性层和第二磁性层之间，并且由非磁性材料制成。 电流配置成在第一磁性层和第二磁性层之间通过。

公开(公告)号：US20100220415A1

公开(公告)日：2010-09-02

申请号：US12780269

申请日：2010-05-14

申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

IPC分类号： G11B5/33

CPC分类号： G11B5/17 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3133 ,  G11B5/3146 ,  G11B2005/0002 ,  G11B2005/0024

摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes are operable to pass a current through the laminated body.

摘要翻译： 磁记录头包括：主磁极; 层压体; 和一对电极。 层叠体包括具有比由主磁极施加的磁场低的矫顽力的第一磁性层，具有低于由主磁极施加的磁场的矫顽力的第二磁性层，以及设置在第一磁性体之间的中间层 层和第二磁性层。 该对电极可操作以使电流通过层叠体。

公开(公告)号：US20090316304A1

公开(公告)日：2009-12-24

申请号：US12457674

申请日：2009-06-18

申请人： Tomomi Funayama ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa

发明人： Tomomi Funayama ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3153 ,  G11B2005/0005

摘要： A magnetic head assembly includes a magnetic recording head, a main magnetic pole, a head slider, a suspension and an actuator arm. The magnetic recording head includes a main magnetic pole having an air bearing surface facing a magnetic recording medium; and a stacked structure having, a first magnetic layer, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. A stacked plane of the stacked structure is inclined with respect to the air bearing surface. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to the other end of the suspension.

摘要翻译： 磁头组件包括磁记录头，主磁极，磁头滑块，悬架和致动器臂。 磁记录头包括具有面向磁记录介质的空气轴承表面的主磁极; 以及具有第一磁性层，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层的层叠结构。 堆叠结构的层叠平面相对于空气轴承表面倾斜。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。

公开(公告)号：US20090059423A1

公开(公告)日：2009-03-05

申请号：US12153490

申请日：2008-05-20

申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

IPC分类号： G11B5/33

CPC分类号： G11B5/02 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/3153 ,  G11B2005/0002

摘要： A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes operable to pass a current through the laminated body. The laminated body includes a first magnetic layer, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. A lamination direction of the laminated body is substantially parallel to a medium moving direction. In a first direction parallel to an air bearing surface and perpendicular to the lamination direction, the laminated body has a protruding portion that protrudes beyond an end of a surface of the main magnetic pole facing the laminated body.

摘要翻译： 磁记录头包括：主磁极; 层压体; 以及可操作以使电流通过层叠体的一对电极。 层叠体包括第一磁性层，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 层叠体的层叠方向大致平行于介质移动方向。 在平行于空气轴承面并与层叠方向垂直的第一方向上，层叠体具有突出部，该突出部突出超过面对层叠体的主磁极的表面的端部。

公开(公告)号：US08687321B2

公开(公告)日：2014-04-01

申请号：US12382940

申请日：2009-03-26

申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

IPC分类号： G11B5/60

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3146 ,  G11B2005/0005 ,  G11B2005/0024 ,  H03B15/006

摘要： A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting of a Fe—Co—Al alloy, a Fe—Co—Si alloy, a Fe—Co—Ge alloy, a Fe—Co—Mn alloy a Fe—Co—Cr alloy and a Fe—Co—B alloy, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The main magnetic pole is placed together with the spin torque oscillator. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to other end of the suspension.

摘要翻译： 磁头组件包括：磁记录头，磁头滑块，悬架和致动器臂。 磁记录头包括自旋扭矩振荡器和主磁极。 自旋转矩振荡器包括：第一磁性层，其包括选自由Fe-Co-Al合金，Fe-Co-Si合金，Fe-Co-Ge合金，Fe-Co-Mn 合金Fe-Co-Cr合金和Fe-Co-B合金，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 主磁极与自旋扭矩振荡器一起放置。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。

公开(公告)号：US20120268844A1

公开(公告)日：2012-10-25

申请号：US13541371

申请日：2012-07-03

申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

IPC分类号： G11B5/147

CPC分类号： G11B5/17 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3133 ,  G11B5/3146 ,  G11B2005/0002 ,  G11B2005/0024

摘要： An example magnetic writing head includes a main magnetic pole, 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, and a laminated body. The laminated body includes a first magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole and a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole.

摘要翻译： 磁性写入头包括主磁极，产生安培磁场以磁化主磁极以使磁化的主磁极产生磁场的线圈和层叠体。 层叠体包括矫顽力低于由主磁极施加的磁场的矫顽力的第一磁性层和具有低于由主磁极施加的磁场的矫顽力的第二磁性层。

公开(公告)号：US08270112B2

公开(公告)日：2012-09-18

申请号：US12232392

申请日：2008-09-16

申请人： Tomomi Funayama ,  Kenichiro Yamada ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Junichi Akiyama ,  Hitoshi Iwasaki

发明人： Tomomi Funayama ,  Kenichiro Yamada ,  Masayuki Takagishi ,  Masahiro Takashita ,  Mariko Shimizu ,  Junichi Akiyama ,  Hitoshi Iwasaki

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B2005/0005 ,  G11B2005/0024

摘要： It is made possible to provide a magnetic head that generates a sufficient high-frequency magnetic field for assisting recording operations, and a magnetic recording device that includes the magnetic head. A magnetic head includes: a recording magnetic pole; a return yoke magnetically coupled to the recording magnetic pole; and at least two spin torque oscillators provided near the recording magnetic pole.

摘要翻译： 可以提供一种产生用于辅助记录操作的足够的高频磁场的磁头和包括磁头的磁记录装置。 磁头包括：记录磁极; 磁耦合到记录磁极的返回磁轭; 以及设置在记录磁极附近的至少两个自旋扭矩振荡器。

公开(公告)号：US08164854B2

公开(公告)日：2012-04-24

申请号：US12155473

申请日：2008-06-04

申请人： Masayuki Takagishi ,  Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

发明人： Masayuki Takagishi ,  Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3133 ,  G11B2005/001

摘要： A magnetic recording head includes a recording magnetic pole, and a spin oscillation device including a first magnetic layer having at least one magnetic material layer, a second magnetic layer having at least one magnetic material layer, and a first nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. The first magnetic layer and the second magnetic layer are antiferromagnetically coupled and/or magnetostatically coupled to each other. The first magnetic layer and the second magnetic layer are laminated in a direction generally parallel to a medium facing surface and generally parallel to a side surface of the recording magnetic pole intersecting with the medium facing surface.

摘要翻译： 磁记录头包括记录磁极，以及包括具有至少一个磁性材料层的第一磁性层，具有至少一个磁性材料层的第二磁性层和设置在第一磁性层之间的第一非磁性层的自旋振荡装置 层和第二磁性层。 第一磁性层和第二磁性层彼此反铁磁耦合和/或静磁耦合。 第一磁性层和第二磁性层沿大致平行于介质相对表面的方向层叠，并且大致平行于与介质相对表面相交的记录磁极的侧表面。

公开(公告)号：US20110299192A1

公开(公告)日：2011-12-08

申请号：US13214033

申请日：2011-08-19

申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Junichi Akiyama ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Shuichi Murakami ,  Tadashi Kai

IPC分类号： G11B21/02

CPC分类号： G01S19/36 ,  G01S19/30 ,  Y10T428/1186

摘要： An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.