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1. 发明专利

JP2017117502A 磁気記録ヘッド及び磁気記録再生装置审中-公开
公开(公告)号：JP2017117502A
公开(公告)日：2017-06-29
申请号：JP2015251896
申请日：2015-12-24
申请人：株式会社東芝 , Toshiba Corp
发明人： YAMADA KENICHIRO , MURAKAMI SHUICHI , NARITA NAOYUKI , KOI KATSUHIKO , TAKEO AKIHIKO , SHIMIZU MARIKO , IWASAKI HITOSHI
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/235 , G11B5/3133 , G11B5/314 , G11B5/3143 , G11B5/3146 , G11B2005/0024
摘要：【課題】記録密度が向上できる磁気記録ヘッド及び磁気記録再生装置を提供する。【解決手段】実施形態によれば、磁気記録ヘッドは、磁極と、積層体と、第1非磁性層と、を含む。積層体は、第1、第2磁性層と、非磁性の中間層と、を含む。第1非磁性層は、第2磁性層と磁極との間に設けられ磁極及び第2磁性層と接する。第2磁性層から第1磁性層に向かう第1方向に沿った第2磁性層の厚さと、飽和磁束密度と、の積は、第1方向に沿った第1磁性層の厚さと、飽和磁束密度と、の積よりも大きい。第2磁性層から第1磁性層に向かって電流が流れる。【選択図】図1

2. 发明专利

JP2015005319A 磁気ヘッド、磁気記録再生装置、および磁気ヘッドの製造方法审中-公开
标题翻译：磁头，磁记录和再现装置，以及磁头的制造方法
公开(公告)号：JP2015005319A
公开(公告)日：2015-01-08
申请号：JP2013130909
申请日：2013-06-21
申请人：株式会社東芝 , Toshiba Corp
发明人： TAKEO AKIHIKO , KASHIWAGI KAZUHITO , YAMADA KENICHIRO , KOI KATSUHIKO , FUNAYAMA TOMOKI
IPC分类号： G11B5/39
CPC分类号： G11B5/3163 , G11B5/29 , G11B5/3909 , G11B5/3912 , G11B5/3932 , G11B5/3958 , G11B5/4886 , G11B5/4976
摘要：【課題】再生するディスク半径位置の違いにより再生信号のトラック間干渉量が変化しにくくすること。【解決手段】実施形態によれば磁気ヘッドは、第1の再生素子と、前記第1の再生素子の第1の側壁に、第1の側壁絶縁膜を介して形成された、第1の磁性膜と、前記第1の側壁に対向する第1の再生素子の第2の側壁に、第2の側壁絶縁膜を介して形成された、第2の磁性膜と、前記第1の再生素子と電気的に絶縁され、前記第1の磁性膜上に形成された第2の再生素子と、前記第1の磁性膜上に形成された第3の磁性膜と、前記第2の再生素子と電気的に絶縁され、前記第1の再生素子上に形成された第4の磁性膜とを具備する。【選択図】図4
摘要翻译：要解决的问题：为了减少由于要再现的盘的半径位置的变化引起的再现信号的轨迹之间的干扰量的变化。解决方案：根据实施例的磁头包括：第一再现元件; 形成在所述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; 第二磁性膜形成在第一再现元件的与第一侧壁相对的第二侧壁上，第二侧壁绝缘膜插入其间; 与第一再现元件电绝缘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; 以及与第二再现元件电绝缘并形成在第一再现元件上的第四磁性膜。

3. 发明专利

JP2012119629A Spin torque oscillator, method of manufacturing the same, magnetic recording head, magnetic head assembly, and magnetic recorder 有权
标题翻译：旋转扭矩振荡器，其制造方法，磁记录头，磁头组件和磁记录仪
公开(公告)号：JP2012119629A
公开(公告)日：2012-06-21
申请号：JP2010270706
申请日：2010-12-03
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKEO AKIHIKO , SHIRATORI SATOSHI , YAMADA KENICHIRO , KOI KATSUHIKO
IPC分类号： H01L29/82 , G11B5/02 , G11B5/31
CPC分类号： G11B5/3163 , B82Y40/00 , G11B5/1278 , G11B5/314 , G11B2005/0024 , H01F10/325 , H01F10/3286 , H01F10/329 , H01F41/302 , H01F41/308 , H01L43/08 , Y10T29/4902 , Y10T29/49032 , Y10T428/1186
摘要： PROBLEM TO BE SOLVED: To provide a spin torque oscillator in which reduction of current density and increase in strength of the in-plane high frequency magnetic field can be achieved simultaneously.SOLUTION: The spin torque oscillator includes an oscillation layer comprising a magnetic body, a spin injection layer comprising a magnetic body and injecting spin into the oscillation layer, and a current constriction layer having an insulation part comprising an oxide or a nitride and a conductive part comprising a nonmagnetic metal penetrating the insulation part in the lamination direction.
摘要翻译：要解决的问题：提供可以同时实现平面内高频磁场的电流密度的降低和强度的增加的自旋转矩振荡器。旋转扭矩振荡器包括：包括磁体的振荡层，包括磁体的自旋注入层并将自旋注入到振荡层;以及电流收缩层，其具有包含氧化物或氮化物的绝缘部分，以及导电部分包括在层叠方向上穿透绝缘部分的非磁性金属。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012014783A Magnetic recording head and magnetic recording device 审中-公开
标题翻译：磁记录头和磁记录装置
公开(公告)号：JP2012014783A
公开(公告)日：2012-01-19
申请号：JP2010150038
申请日：2010-06-30
申请人： Toshiba Corp , 株式会社東芝
发明人： OTAKE MASAYA , KOI KATSUHIKO
IPC分类号： G11B5/31 , H01L29/82 , H01L43/08
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording head capable of efficiently applying a high frequency magnetic field, and to provide a magnetic recording and reproducing device using the same.SOLUTION: The magnetic recording head includes: a main magnetic pole for making a magnetic recording medium generate a recording magnetic field; a return yoke paired with the main magnetic pole; a spin torque oscillator which is provided between the main magnetic pole and the return yoke, and includes an oscillation layer and a spin injection layer; a laminated body constituted by laminating three or more non-magnetic metal layers which are provided at least one of positions between the main magnetic pole and the spin torque oscillator and between the return yoke and the spin torque oscillator, in which the non-magnetic metal layers have a thickness of 0.5 nm or more and 2 nm or less, and the length of the laminated body in the laminating direction is shorter than the shortest length in the direction of laminate plane; and an electrode provided between the laminated body and the spin torque oscillator.
摘要翻译：要解决的问题：提供一种能够有效地施加高频磁场的磁记录头，并提供使用该磁记录和再现装置的磁记录和再现装置。解决方案：磁记录头包括：用于制造磁记录介质的主磁极产生记录磁场; 与主磁极配对的返回轭; 旋转扭矩振荡器，设置在主磁极和返回磁轭之间，并且包括振荡层和自旋注入层; 三层或多层非磁性金属层的叠层体，该非磁性金属层设置在主磁极与自旋扭矩振荡器之间以及返回轭和自旋扭矩振荡器之间的至少一个位置，其中非磁性金属层的厚度为0.5nm以上且2nm以下，层叠体的层叠方向的长度比层叠面的方向的最短长度短; 以及设置在层叠体和自旋扭矩振子之间的电极。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010079976A Magnetic recording head and magnetic recording device 审中-公开
标题翻译：磁记录头和磁记录装置
公开(公告)号：JP2010079976A
公开(公告)日：2010-04-08
申请号：JP2008246146
申请日：2008-09-25
申请人： Toshiba Corp , 株式会社東芝
发明人： KOI KATSUHIKO , IWASAKI HITOSHI , TAKAGISHI MASAYUKI , YAMADA KENICHIRO , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO , OIKAWA SOICHI
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/02 , G11B5/3133 , G11B5/3146 , G11B2005/0002 , H03B15/006
摘要： PROBLEM TO BE SOLVED: To improve recording resolution. SOLUTION: A magnetic recording head includes: a magnetic pole 12 having a first magnetic body part including a medium opposite surface 12a and configured to generate a writing magnetic field; a laminated member formed in the medium opposite surface of the magnetic pole and including first and second magnetic layers 22 and 24 and a nonmagnetic layer 23 disposed between the first magnetic layer and the second magnetic layer; and a spin torque oscillator 20 for supplying a current between the first and second magnetic layers to generate a high-frequency magnetic field from the second magnetic layer. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提高记录分辨率。解决方案：磁记录头包括：磁极12，具有包括介质相对表面12a并被配置为产生写入磁场的第一磁体部分; 形成在所述磁极的介质相对表面上并包括第一和第二磁性层22和24的层压构件和设置在所述第一磁性层和所述第二磁性层之间的非磁性层23; 以及用于在第一和第二磁性层之间提供电流以产生来自第二磁性层的高频磁场的自旋转矩振荡器20。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010020857A Magnetic recording head, magnetic head assembly and magnetic recording system 审中-公开
标题翻译：磁记录头，磁头组件和磁记录系统
公开(公告)号：JP2010020857A
公开(公告)日：2010-01-28
申请号：JP2008181911
申请日：2008-07-11
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMADA KENICHIRO , IWASAKI HITOSHI , TAKAGISHI MASAYUKI , FUNAYAMA TOMOKI , TAKASHITA MASAHIRO , SHIMIZU MARIKO , OIKAWA SOICHI , KOI KATSUHIKO
IPC分类号： G11B5/31 , G11B5/65
CPC分类号： G11B5/314 , G11B5/02 , G11B5/1278 , G11B5/3146 , G11B2005/0005 , G11B2005/0024
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head, magnetic head assembly, and magnetic recording system which achieves a stable and uniform oscillating frequency of a spin torque oscillator and enables stable high frequency field assist recording. SOLUTION: The magnetic recording head includes: a main magnetic pole for applying a recording magnetic field on a magnetic recording medium, an adjusting magnetic pole set together with the main magnetic pole, the spin torque oscillator at least a part of which is set between the main magnetic pole and the adjusting magnetic pole, a main magnetic pole coil for magnetizing the main magnetic pole, and an adjusting magnetic pole coil wound in a different way from the main pole coil for magnetizing the adjusting magnetic pole coil. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种磁头，磁头组件和磁记录系统，其实现了自旋扭矩振荡器的稳定且均匀的振荡频率，并且实现了稳定的高频场辅助记录。解决方案：磁记录头包括：用于在磁记录介质上施加记录磁场的主磁极，与主磁极一起设置的调节磁极，其旋转扭矩振荡器的至少一部分是设置在主磁极和调节磁极之间，用于磁化主磁极的主磁极线圈和以与主极线圈不同的方式缠绕的用于磁化调节磁极线圈的调节磁极线圈。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009301686A Magnetic recording medium and magnetic recording/reproduction apparatus using the same 审中-公开
标题翻译：磁记录介质和磁记录/再现装置
公开(公告)号：JP2009301686A
公开(公告)日：2009-12-24
申请号：JP2008158158
申请日：2008-06-17
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
CPC分类号： G11B5/82 , B82Y10/00 , G11B5/02 , G11B5/314 , G11B5/743 , G11B5/855 , G11B2005/0005
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording medium capable of enhancing surface recording density and suppressing reduction of thermal fluctuation resistance, by enhancing the track density, while maintaining planarity of the surface of the recording medium. SOLUTION: Each of the magnetic recording medium and the magnetic recording and playback device includes a non-magnetic substrate and a magnetic recording layer 2, which is formed on the non-magnetic substrate and has a concentric or spiral recording track 5 and in which a surface transformed layer 3, whose anisotropic magnetic field Hk is lower than that of a region between recording tracks, is provided in the surface region of the recording track. In the magnetic recording and playback device, an element generating a high-frequency magnetic field is further provided in the vicinity of a single magnetic pole type recording head. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过提高轨道密度，同时保持记录介质的表面的平面性，提供能够提高表面记录密度并抑制热波动阻力降低的磁记录介质。解决方案：磁记录介质和磁记录和重放装置中的每一个包括非磁性基板和磁记录层2，其形成在非磁性基板上并具有同心或螺旋记录轨道5和其中在记录轨道的表面区域中设置有其各向异性磁场Hk低于记录轨道之间的区域的表面变换层3。在磁记录和重放装置中，在单个磁极型记录头附近还提供产生高频磁场的元件。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2014116036A Magnetic head, magnetic head assembly and magnetic recording/reproducing apparatus 审中-公开
标题翻译：磁头，磁头组件和磁记录/再生装置
公开(公告)号：JP2014116036A
公开(公告)日：2014-06-26
申请号：JP2012267016
申请日：2012-12-06
申请人： Toshiba Corp , 株式会社東芝
发明人： TAKASHITA MASAHIRO , MURAKAMI SHUICHI , HASE NAOKI , KOI KATSUHIKO
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/147 , G11B5/235 , G11B5/3136 , G11B5/3146 , G11B2005/0024
摘要： PROBLEM TO BE SOLVED: To provide a magnetic head capable of generating a high-frequency magnetic field having sufficient intensity.SOLUTION: The magnetic head comprises: a main pole; a trailing shield; a spin torque oscillation element provided between the main pole and the trailing shield; a first cooling layer provided above the spin torque oscillation element and having at least a part of a B2 structure or a L2structure; and a second cooling layer provided to contact with the first cooling layer and having silver as a principal component. A drive current for driving the spin torque oscillation element is passed from the spin torque oscillation element to the second and first cooling layers.
摘要翻译：要解决的问题：提供能够产生具有足够强度的高频磁场的磁头。解决方案：磁头包括：主极; 后盾设置在主极和后挡板之间的自旋扭矩振荡元件; 第一冷却层，设置在所述自旋扭矩振荡元件上方，并具有至少一部分B2结构或L2结构; 以及设置成与第一冷却层接触并具有银作为主要成分的第二冷却层。用于驱动旋转扭矩振荡元件的驱动电流从旋转扭矩振荡元件传递到第二和第一冷却层。

9. 发明专利

JP2014017030A Magnetic head, manufacturing method thereof, and magnetic recording and reproducing device 审中-公开
标题翻译：磁头及其制造方法以及磁记录和再现装置
公开(公告)号：JP2014017030A
公开(公告)日：2014-01-30
申请号：JP2012152819
申请日：2012-07-06
申请人： Toshiba Corp , 株式会社東芝
发明人： SHIRATORI SATOSHI , KOI KATSUHIKO , SUGIMURA SHINOBU , FUJITA NORIHITO , TAKEO AKIHIKO
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/3146 , G11B5/3163 , G11B2005/0024
摘要： PROBLEM TO BE SOLVED: To obtain a high-frequency assisted magnetic recording head capable of stably oscillating without erasing data on adjoining tracks even if a skew angle arises.SOLUTION: A manufacturing method of a magnetic head according to an embodiment includes the steps of: forming a protection layer on surfaces of a main magnetic pole layer, a processed spin torque oscillator, and a mask formed thereon; and further subjecting the main magnetic pole layer and the protection layer on the surface of the main magnetic pole layer to ion beam etching through the mask, and removing the protection layer on the surface of the main magnetic pole layer while leaving the protection layer on the side face of the spin torque oscillator, and processing the main magnetic pole layer so that a side face thereof has a tapered shape toward a substrate.
摘要翻译：要解决的问题：为了获得能够稳定地振荡的高频辅助磁记录头，即使产生偏斜角，也不会在邻接轨道上擦除数据。解决方案：根据实施例的磁头的制造方法包括以下步骤：在主磁极层，处理后的自旋扭矩振荡器和形成在其上的掩模的表面上形成保护层; 并且通过掩模进一步对主磁极层的表面上的主磁极层和保护层进行离子束蚀刻，并且在主磁极层的表面上移除保护层，同时将保护层留在旋转扭矩振荡器的侧面，并且处理主磁极层使得其侧面朝向基板具有锥形形状。

10. 发明专利

JP2014010865A Magnetic recording head and disk drive including the same 有权
标题翻译：磁记录头和磁盘驱动器，包括它们
公开(公告)号：JP2014010865A
公开(公告)日：2014-01-20
申请号：JP2012146891
申请日：2012-06-29
申请人： Toshiba Corp , 株式会社東芝
发明人： YAMADA KENICHIRO , MATSUMOTO TAKUYA , NARITA NAOYUKI , TAGUCHI TOMOKO , KOI KATSUHIKO , TAKEO AKIHIKO
IPC分类号： G11B5/31 , G11B5/02
CPC分类号： G11B5/17 , G11B5/1278 , G11B5/3123 , G11B19/2009 , G11B2005/0005
摘要： PROBLEM TO BE SOLVED: To provide a magnetic recording head capable of improving recording capability and achieving high recording density, and a disk drive including the same.SOLUTION: A magnetic recording head of a disk drive comprises: a disk facing surface 43 which faces a recording layer of a recording medium; a main pole 60 which has a tip positioned on the disk facing surface side and applying a recording magnetic field to the recording layer; a leading shield 64 which is provided on a leading side of the main pole and faces the tip of the main pole with gap therebetween; a high frequency oscillator 74 which is provided between the leading shield and the tip of the main pole; a recording coil 70 which applies a magnetic field to the main pole; and a connection terminal for flowing current through the main pole, the high frequency oscillator, and the leading shield.
摘要翻译：要解决的问题：提供一种能够提高记录能力和实现高记录密度的磁记录头，以及包括该记录密度的磁盘驱动器。磁盘驱动器的磁记录头包括：面对磁盘记录介质的记录层; 主极60，其具有位于盘对面的表面侧的尖端，并向记录层施加记录磁场; 导向屏蔽64，其设置在主极的前侧，并且与主极的前端间隔开; 高频振荡器74，其设置在主屏蔽和主极的尖端之间; 记录线圈70，其向主极施加磁场; 以及用于使电流流过主极，高频振荡器和前屏蔽的连接端子。

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