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1. 发明专利

JP2014038671A Magnetoresistive effect element, magnetic head, magnetic head assembly, magnetic recording and reproducing device, and manufacturing method of magnetoresistive effect element 有权
标题翻译：磁阻效应元件，磁头，磁头组件，磁记录和再现装置以及磁致伸缩效应元件的制造方法
公开(公告)号：JP2014038671A
公开(公告)日：2014-02-27
申请号：JP2012179528
申请日：2012-08-13
申请人： Toshiba Corp , 株式会社東芝
发明人： ISOWAKI YOSUKE , IWASAKI HITOSHI , TAKAGISHI MASAYUKI
IPC分类号： G11B5/39
CPC分类号： G11B5/11 , B82Y40/00 , G11B5/3909 , G11B5/3912 , G11B5/4555 , H01F7/00 , H01F10/324 , H01F41/02 , H01F41/302 , Y10T29/4902
摘要： PROBLEM TO BE SOLVED: To provide a magnetoresistive effect element which can be miniaturized, a magnetic head, a magnetic head assembly, a magnetic recording and reproducing device, and a manufacturing method of the magnetoresistive effect element.SOLUTION: According to an embodiment, there is provided the magnetoresistive effect element including a first shield, a second shield, a third shield, a first magnetic layer, a second magnetic layer, and an intermediate layer. The third shield is arranged between the first shield and the second shield, and brought into contact with the second shield. A length of the third shield in a first direction crossing a lamination direction directing from the first shield toward the second shield is shorter than a length of the second shield in the first direction. The first magnetic layer is arranged between the first shield and the third shield. The second magnetic layer is arranged between the first magnetic layer and the third shield, and brought into exchange couple with the third shield. The intermediate layer is arranged between the first magnetic layer and the second magnetic layer.
摘要翻译：要解决的问题：提供可以小型化的磁阻效应元件，磁头，磁头组件，磁记录和再现装置以及磁阻效应元件的制造方法。根据一个实施例，在提供了包括第一屏蔽，第二屏蔽，第三屏蔽，第一磁性层，第二磁性层和中间层的磁阻效应元件。第三屏蔽件布置在第一屏蔽件和第二屏蔽件之间，并与第二屏蔽件接触。在从第一屏蔽朝着第二屏蔽引导的层叠方向的第一方向上的第三屏蔽的长度比第一屏蔽的第一方向的长度短。第一磁性层布置在第一屏蔽和第三屏蔽之间。第二磁性层布置在第一磁性层和第三屏蔽之间，并与第三屏蔽层交换耦合。中间层布置在第一磁性层和第二磁性层之间。

2. 发明专利

JP2012203916A Magnetic head, magnetic head assembly, and magnetic recording and reproducing device 审中-公开
标题翻译：磁头，磁头组件和磁记录和再现装置
公开(公告)号：JP2012203916A
公开(公告)日：2012-10-22
申请号：JP2011064252
申请日：2011-03-23
申请人： Toshiba Corp , 株式会社東芝
发明人： IWASAKI HITOSHI , TAKAGISHI MASAYUKI , YAMADA KENICHIRO , HASHIMOTO SUSUMU , TOMOTA YUSUKE
IPC分类号： G11B5/39 , G11B5/02 , G11B5/31 , H01L29/82 , H01L43/08
CPC分类号： G11B5/3906 , G01R33/093 , G11B5/1278 , G11B2005/0002 , G11B2005/0008 , H01F10/3254 , H01F10/3272 , H01F10/3286 , H01F10/329 , H01L43/08 , Y10T428/11
摘要： PROBLEM TO BE SOLVED: To provide a magnetoresistive effect type magnetic head, a magnetic head assembly and a magnetic recording and reproducing device, each having suppressed noise.SOLUTION: A magnetic head having a reproduction portion is provided. The reproduction portion detects a medium magnetic field recorded in a magnetic recording medium. The reproduction portion includes a laminated film and a magnetic field application portion. The laminated film includes a first magnetization fixed layer and a magnetization free layer. The first magnetization fixed layer has vertical magnetic anisotropy, and has magnetization fixed thereto. The magnetization free layer is laminated along the first magnetization fixed layer and a first axis and performs spin torque oscillation. The magnetic field application portion is laminated along the laminated film and the first axis and applies a bias magnetic field having a component along the first axis to the laminated film. When a current equal to or more than a value allowing the magnetization free layer to perform the spin torque oscillation flows from the first magnetization fixed layer to the magnetization free layer, the resistance of the laminated film changes according to the medium magnetic field.
摘要翻译：要解决的问题：提供具有抑制噪声的磁阻效应型磁头，磁头组件和磁记录和再现装置。解决方案：提供具有再现部分的磁头。再现部分检测记录在磁记录介质中的介质磁场。再现部分包括层压膜和磁场施加部分。层压膜包括第一磁化固定层和无磁化层。第一磁化固定层具有垂直的磁各向异性，并且固定有磁化。磁化自由层沿着第一磁化固定层和第一轴层压，并进行自旋转矩振荡。沿着层叠膜和第一轴层叠磁场施加部，将具有沿着第一轴的分量的偏置磁场施加到层叠膜。当使等于或大于允许磁化自由层执行自旋扭矩振荡的值从第一磁化固定层流向无磁化层时，层压膜的电阻根据介质磁场而变化。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2010040060A Magnetic head for high-frequency field assist recording and magnetic recording apparatus using the same 审中-公开
标题翻译：用于高频场辅助记录的磁头和使用该磁头的磁记录装置
公开(公告)号：JP2010040060A
公开(公告)日：2010-02-18
申请号：JP2008198167
申请日：2008-07-31
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKAGISHI MASAYUKI , YAMADA KENICHIRO , IWASAKI HITOSHI , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO
IPC分类号： G11B11/105 , G11B5/31 , G11B5/35 , G11B11/10
CPC分类号： G11B5/02 , G11B5/314 , G11B2005/0005
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording head for high-frequency field assist recording that minimizes the time required for a reversal of a spin torque oscillator. SOLUTION: The magnetic head includes: a main magnetic pole 22; a magnetic shield 24 forming a magnetic circuit with the main magnetic pole; and a spin torque oscillator 10 provided between the main magnetic pole and the magnetic shield, formed of a stack structure having first and second magnetic layers 10d, 10b and an intermediate layer 10c provided between the first magnetic layer 10d and second magnetic layer 10b, to generate high-frequency magnetic field from the second magnetic layer 10b by supplying a current between the first and second magnetic layers. In the magnetic head, the first magnetic layer 10d is made of a magnetic material with a coercive force of 200 Oe or less, a cross-sectional area of the first magnetic layer in a direction perpendicular to a stack layer face of the first magnetic layer is four or more times greater than a cross-sectional area of the second magnetic layer in a direction perpendicular to a stack layer face of the second magnetic layer. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于高频场辅助记录的磁记录头，其使旋转扭矩振荡器反转所需的时间最小化。解决方案：磁头包括：主磁极22; 与主磁极形成磁路的磁屏蔽24; 以及设置在主磁极和磁屏蔽之间的自旋扭矩振荡器10，其由具有第一和第二磁性层10d，10b的中间层10c和设置在第一磁性层10d和第二磁性层10b之间的中间层10c的堆叠结构形成，通过在第一和第二磁性层之间提供电流从第二磁性层10b产生高频磁场。在磁头中，第一磁性层10d由矫顽力为200Oe以下的磁性材料制成，第一磁性层在与第一磁性层的堆叠层面垂直的方向上的截面积是在垂直于第二磁性层的堆叠层面的方向上比第二磁性层的横截面积大四倍以上。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010027207A Magnetic recording and playback device 审中-公开
标题翻译：磁记录和回放装置
公开(公告)号：JP2010027207A
公开(公告)日：2010-02-04
申请号：JP2009253481
申请日：2009-11-04
申请人： Toshiba Corp , 株式会社東芝
发明人： OIKAWA SOICHI , IWASAKI HITOSHI , TAKAGISHI MASAYUKI , YAMADA KENICHIRO , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , KOI KATSUHIKO , SHIMIZU MARIKO
IPC分类号： G11B5/65 , G11B5/02 , G11B5/82
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium which improves surface recording density by increasing a track density, and which reduces thermal fluctuation resistance while maintaining surface flatness of the recording medium. SOLUTION: The recording track has a surface modified layer on the surface region. In the surface modified layer, the anisotropic magnetic field Hk is more reduced than that in the region between the neighboring recording tracks. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种通过增加轨道密度来提高表面记录密度的磁记录介质，并且在保持记录介质的表面平坦度的同时降低热波动阻力。解决方案：记录轨道在表面区域具有表面改性层。在表面改性层中，各向异性磁场Hk比在相邻的记录磁道之间的区域中更为降低。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2010003353A Magnetic recording head, magnetic head assembly, and magnetic recorder 审中-公开
标题翻译：磁记录头，磁头组件和磁记录仪
公开(公告)号：JP2010003353A
公开(公告)日：2010-01-07
申请号：JP2008161024
申请日：2008-06-19
申请人： Toshiba Corp , 株式会社東芝
发明人： FUNAYAMA TOMOKI , YAMADA KENICHIRO , KOI KATSUHIKO , IWASAKI HITOSHI , TAKAGISHI MASAYUKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO , OIKAWA SOICHI
IPC分类号： G11B5/31 , G11B5/02 , G11B5/65
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B5/3153 , G11B2005/0005
摘要： PROBLEM TO BE SOLVED: To provide: a magnetic recording head that increases the high-frequency magnetic field strength to apply it to the magnetic recording medium and achieves high recording density; a magnetic head assembly; and a magnetic recorder.
SOLUTION: The magnetic recording head has a layered structure consisting of the main pole with a surface facing the magnetic recording medium, a first magnetic layer, a second magnetic layer, and an intermediate layer formed between the first and second magnetic layers. The lamination surface of the layered structure inclines against the medium surface.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供：提高高频磁场强度以将其施加到磁记录介质并实现高记录密度的磁记录头; 磁头组件; 和磁记录器。解决方案：磁记录头具有由主磁极与面对磁记录介质的表面组成的分层结构，第一磁性层，第二磁性层和形成在第一和第二磁性层之间的中间层。层叠结构的层叠表面相对于介质表面倾斜。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010003351A Magnetic head assembly and magnetic recording and reproducing device 有权
标题翻译：磁头组件和磁记录和再现装置
公开(公告)号：JP2010003351A
公开(公告)日：2010-01-07
申请号：JP2008160856
申请日：2008-06-19
申请人： Toshiba Corp , 株式会社東芝
发明人： IWASAKI HITOSHI , YAMADA KENICHIRO , TAKAGISHI MASAYUKI , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO , OIKAWA SOICHI , KOI KATSUHIKO
IPC分类号： G11B5/31
CPC分类号： B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/0005 , G11B2005/3996
摘要： PROBLEM TO BE SOLVED: To reduce a writing magnetic field generated from a main magnetic pole which a spin torque oscillator receives in order to reduce fluctuation of an oscillation property of the spin torque oscillator, or in order to reduce the current required for oscillation. SOLUTION: A magnetic head assembly includes: a recording magnetic pole 62; a spin torque oscillator 10 which has first and second magnetic layers 10a and 10c, and an intermediate layer 10b set up between the first magnetic layer and the second magnetic layer, and generates high-frequency magnetic field by feeding an electric current between the first and second magnetic layers; and a third magnetic layer 101 arranged near at least part of a side face of the second magnetic layer. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了减少由自旋转矩振荡器接收的主磁极产生的写入磁场，以减少自旋转矩振荡器的振荡特性的波动，或为了减少所需的电流振荡。解决方案：磁头组件包括：记录磁极62; 具有第一和第二磁性层10a和10c的自旋转矩振荡器10以及设置在第一磁性层和第二磁性层之间的中间层10b，并且通过在第一和第二磁性层之间馈送电流而产生高频磁场第二磁性层; 以及配置在第二磁性层的侧面的至少一部分附近的第三磁性层101。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009064500A Magnetic head and magnetic disk device 审中-公开
标题翻译：磁头和磁盘设备
公开(公告)号：JP2009064500A
公开(公告)日：2009-03-26
申请号：JP2007230476
申请日：2007-09-05
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKEO AKIHIKO , FUNAYAMA TOMOKI , TAKAGISHI MASAYUKI , TAKASHITA MASAHIRO , YAMADA KENICHIRO , SHIMIZU MARIKO , IWASAKI HITOSHI , AKIYAMA JUNICHI
IPC分类号： G11B21/21 , G11B5/60
CPC分类号： G11B5/102 , G11B5/314 , G11B5/6005 , G11B5/6064 , G11B2005/0005 , G11B2005/0024
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head with minimum number of terminals connected to magnetic head elements in a head slider with the magnetic head elements including a heater element for controlling flying height and a high-frequency oscillator for high-frequency magnetic field assisted recording.
SOLUTION: The head slider with the terminals 11-15 connected to the magnetic head element 10 mounted thereon has a terminal member for sharing at least one energizing terminal 13 connected to each of the heater element for controlling the flying height and the high-frequency oscillator.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有连接到磁头滑块中的磁头元件的端子数量最少的磁头，其中磁头元件包括用于控制飞行高度的加热元件和用于高频的高频振荡器磁场辅助记录。解决方案：具有连接到安装在其上的磁头元件10的端子11-15的磁头滑块具有用于共享至少一个通电端子13的端子构件，连接到每个加热器元件以控制飞行高度和高度频率振荡器。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2009064487A Magnetic recording head and magnetic recording system 有权
标题翻译：磁记录头和磁记录系统
公开(公告)号：JP2009064487A
公开(公告)日：2009-03-26
申请号：JP2007229121
申请日：2007-09-04
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMADA KENICHIRO , IWASAKI HITOSHI , AKIYAMA JUNICHI , TAKAGISHI MASAYUKI , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/02 , G11B5/1278 , G11B5/314 , G11B5/3153 , G11B2005/0002
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording head enabling stable high-frequency magnetic field assisted recording, and to provide a magnetic recording system using the magnetic recording head.
SOLUTION: The magnetic recording head includes a laminate, having a main magnetic pole, first and second magnetic layers, and an intermediate layer provided between the first and second magnetic layers, and a pair of electrodes supplying current to the laminate. A lamination direction of the laminate is nearly in parallel with the moving direction of a medium. The laminate has a projection protruding from the end of the surface of the main magnetic pole facing the laminate in a direction parallel to a medium facing surface and perpendicular to the lamination direction.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够进行稳定的高频磁场辅助记录的磁记录头，并提供使用磁记录头的磁记录系统。解决方案：磁记录头包括具有主磁极，第一和第二磁性层以及设置在第一和第二磁性层之间的中间层以及向层叠体提供电流的一对电极的层叠体。层叠体的层叠方向与介质的移动方向大致平行。层叠体具有从主磁极的面向层叠体的表面的端部突出的突起，该平面与介质相对表面并垂直于层叠方向。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008277586A Magnetic element, magnetic recording head and magnetic recording apparatus 审中-公开
标题翻译：磁性元件，磁记录头和磁记录装置
公开(公告)号：JP2008277586A
公开(公告)日：2008-11-13
申请号：JP2007120307
申请日：2007-04-27
申请人： Toshiba Corp , 株式会社東芝
发明人： AKIYAMA JUNICHI , YAMADA KENICHIRO , TAKAGISHI MASAYUKI , IWASAKI HITOSHI
IPC分类号： H01L29/82 , G11B5/02 , G11B5/31 , G11B5/65
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B2005/0002 , G11B2005/0024 , Y10T428/115
摘要： PROBLEM TO BE SOLVED: To provide a magnetic element, magnetic recording head, magnetic recording apparatus that employ the same capable of performing effective, and efficient high-frequency assisted magnetic recording. SOLUTION: The present invention relates to a magnetic element comprises a first spin oscillation layer having at least one magnetic substance layer; a second spin oscillation layer having at least one magnetic substance layer; a first non-magnetic substance layer provided between the first spin oscillation layer and the second spin oscillation layer; a spin polarization layer, including a ferromagnetic substance of which a magnetization direction is fixed; and a pair of electrodes, capable of charging currents to a laminate that has the first and second spin oscillation layer, the non-magnetic substance layer and the spin-polarization layer. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁性元件，磁记录头，采用该磁性元件的能够执行有效且高效的高频辅助磁记录的磁记录装置。解决方案：本发明涉及一种磁性元件，包括具有至少一个磁性物质层的第一自旋振荡层; 具有至少一个磁性物质层的第二自旋振荡层; 设置在第一自旋振荡层和第二自旋振荡层之间的第一非磁性物质层; 包括其磁化方向固定的铁磁性物质的自旋极化层; 以及能够对具有第一和第二自旋振荡层的层压体，非磁性物质层和自旋极化层充电电流的一对电极。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2008244109A Magnetoresistive effect element, magnetic head, magnetic recording/reproducing device, and method of manufacturing magnetoresistive effect element 有权
标题翻译：磁阻效应元件，磁头，磁记录/再现装置以及制造磁电效应元件的方法
公开(公告)号：JP2008244109A
公开(公告)日：2008-10-09
申请号：JP2007081991
申请日：2007-03-27
申请人： Tdk Corp , Tdk株式会社 , Toshiba Corp , 株式会社東芝
发明人： FUKUYA HIROMI , HASHIMOTO SUSUMU , TAKAGISHI MASAYUKI , IWASAKI HITOSHI
IPC分类号： H01L43/10 , G11B5/39 , H01L43/08 , H01L43/12
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B2005/3996
摘要： PROBLEM TO BE SOLVED: To provide a magnetoresistive effect element which can exhibit a high magnetroresistive effect by means of: suppressing the roughness of interface (wall surface) with magnetic fine junction point and smoothing it; and preventing the loss of a resistance change rate caused by scattering of electrons on the wall surface in the magnetoresistive effect element which exhibits the magnetoresistive effect by an abrupt change in the magnetization at a magnetic fine junction point.
SOLUTION: The magnetoresistive effect element comprises: a laminate including a magnetization fixed layer having a magnetization direction fixed substantially in one direction, a magnetization free layer whose magnetization direction varies with an external magnetic field, and an intermediate layer provided between the magnetization fixed layer and the magnetization free layer; and a pair of electrodes electrically connected in a vertical direction of the laminate to pass a sense current through the laminate in a direction nearly vertical to the film surface of the laminate. The intermediate layer includes a compound part which covers an insulating part, a magnetic metal part, and at least part of the outer periphery of the magnetic metal part.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁阻效应元件，其可以通过以下方式表现出高磁阻效应：通过磁性细结点抑制界面（壁面）的粗糙度并使其平滑化; 并且防止由于在磁性细结点处的磁化强度的突然变化而显示出磁阻效应的磁阻效应元件的壁表面上的电子散射引起的电阻变化率的损失。解决方案：磁阻效应元件包括：层压体，其包括具有大致沿一个方向固定的磁化方向的磁化固定层，其磁化方向随着外部磁场而变化的磁化自由层以及设置在磁化强度之间的中间层固定层和无磁化层; 以及一对沿层叠体的垂直方向电连接的电极，以使感应电流在与层叠体的膜表面几乎垂直的方向上通过层叠体。中间层包括覆盖绝缘部分，磁性金属部分和磁性金属部分的外周的至少一部分的复合部分。版权所有（C）2009，JPO＆INPIT

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