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21. 发明授权

US07002840B2 Magnetoresistive element including a yoke that surrounds a conductor, magnetic memory cell and magnetic memory device including the same 有权
标题翻译：包括围绕导体的磁轭的磁阻元件，磁存储单元和包括其的磁存储器件
公开(公告)号：US07002840B2
公开(公告)日：2006-02-21
申请号：US10967297
申请日：2004-10-19
申请人： Akifumi Kamijima , Koji Shmazawa , Hitoshi Hatate
发明人： Akifumi Kamijima , Koji Shmazawa , Hitoshi Hatate
IPC分类号： G11C11/15
CPC分类号： G11C11/16
摘要： The present invention provides a magnetic memory device capable of stably performing information writing operation by efficiently using a magnetic field generated by current flowing in write lines and having a high degree of flexibility in designing. A magneto-resistive element has: a magnetic yoke disposed annularly in a circumferential direction so as to surround a write word line and a write bit line, and having a pair of open ends facing each other while sandwiching a gap provided in a part in the circumferential direction; and a stacked body including a second magnetic layer of which magnetization direction changes according to an external magnetic field and a pair of end faces. The stacked body is disposed in the gap so that each of the pair of end faces and each of the pair of open ends face each other. With the configuration, magnetization of the second magnetic layer can be efficiently inverted and, as compared with the case where the stacked body and the magnetic yoke are in contact with each other, the material of the stacked body can be selected from a wider range and the magnetic and electric performances of the stacked body can be sufficiently displayed.
摘要翻译：本发明提供一种能够通过有效地利用在写入线中流动的电流产生的磁场并且在设计中具有高度的灵活性来稳定执行信息写入操作的磁存储器件。磁阻元件具有：环绕圆周方向设置的磁轭，以便围绕写入字线和写入位线，并且具有一对彼此相对的开放端，同时夹着设置在所述第一部分中的部分的间隙圆周方向以及包括其磁化方向根据外部磁场而变化的第二磁性层和一对端面的层叠体。叠层体设置在间隙中，使得一对端面和一对开口端中的每一个彼此面对。利用该结构，可以有效地反转第二磁性层的磁化，并且与堆叠体和磁轭相互接触的情况相比，层叠体的材料可以从更宽的范围内选择，可以充分地显示堆叠体的磁性和电气性能。

22. 发明申请

US20050117386A1 Magnetoresistive element, magnetic memory cell, and magnetic memory device 有权
标题翻译：磁阻元件，磁存储单元和磁存储器件
公开(公告)号：US20050117386A1
公开(公告)日：2005-06-02
申请号：US10967297
申请日：2004-10-19
申请人： Akifumi Kamijima , Koji Shimazawa , Hitoshi Hatate
发明人： Akifumi Kamijima , Koji Shimazawa , Hitoshi Hatate
IPC分类号： G11C11/15 , G11C11/16 , H01L21/8246 , H01L27/105 , H01L43/08 , G11C11/14
CPC分类号： G11C11/16
摘要： The present invention provides a magnetic memory device capable of stably performing information writing operation by efficiently using a magnetic field generated by current flowing in write lines and having a high degree of flexibility in designing. A magneto-resistive element has: a magnetic yoke disposed annularly in a circumferential direction so as to surround a write word line and a write bit line, and having a pair of open ends facing each other while sandwiching a gap provided in a part in the circumferential direction; and a stacked body including a second magnetic layer of which magnetization direction changes according to an external magnetic field and a pair of end faces. The stacked body is disposed in the gap so that each of the pair of end faces and each of the pair of open ends face each other. With the configuration, magnetization of the second magnetic layer can be efficiently inverted and, as compared with the case where the stacked body and the magnetic yoke are in contact with each other, the material of the stacked body can be selected from a wider range and the magnetic and electric performances of the stacked body can be sufficiently displayed.
摘要翻译：本发明提供一种能够通过有效地利用在写入线中流动的电流产生的磁场并且在设计中具有高度的灵活性来稳定执行信息写入操作的磁存储器件。磁阻元件具有：环绕圆周方向设置的磁轭，以便围绕写入字线和写入位线，并且具有一对彼此相对的开口端，同时将设置在其中的部分中的间隙夹在圆周方向以及包括其磁化方向根据外部磁场而变化的第二磁性层和一对端面的层叠体。叠层体设置在间隙中，使得一对端面和一对开口端中的每一个彼此面对。利用该结构，可以有效地反转第二磁性层的磁化，并且与堆叠体和磁轭相互接触的情况相比，层叠体的材料可以从更宽的范围内选择，可以充分地显示堆叠体的磁性和电气性能。

23. 发明申请

US20050099865A1 Magnetoresistive element, magnetic memory cell, and magnetic memory device 失效
标题翻译：磁阻元件，磁存储单元和磁存储器件
公开(公告)号：US20050099865A1
公开(公告)日：2005-05-12
申请号：US10960122
申请日：2004-10-08
申请人： Hitoshi Hatate , Akifumi Kamijima
发明人： Hitoshi Hatate , Akifumi Kamijima
IPC分类号： H01L27/105 , G11C11/16 , H01L21/8246 , H01L43/08 , G11C11/00
CPC分类号： G11C11/16 , G11C11/1675
摘要： The present invention provides a magneto-resistive element capable of stably performing information writing operation by efficiently using a magnetic field generated by current flowing in a conductor and to a magnetic memory device having the same. A magneto-resistive element is constructed so that the area of a cross section orthogonal to the circumferential direction of a pair of magnetic yokes becomes the smallest in connection parts facing stacked bodies. With the configuration, magnetic flux density of return magnetic fields generated by passing write current to write bit lines and write word lines can be made the highest in the connection parts. Thus, information can be written efficiently and stably.
摘要翻译：本发明提供一种磁阻元件，其能够通过有效地利用在导体中流动的电流产生的磁场和具有该磁场的磁存储装置来稳定地执行信息写入操作。磁阻元件被构造成使得与一对磁轭的圆周方向正交的横截面的面积在面向堆叠体的连接部分中变得最小。利用该结构，通过将写入电流写入写入位线和写入字线而产生的返回磁场的磁通密度可以在连接部分中变得最高。因此，可以有效且稳定地写入信息。

24. 发明授权

US08404431B1 Method for manufacturing thin-film magnetic head 有权
标题翻译：制造薄膜磁头的方法
公开(公告)号：US08404431B1
公开(公告)日：2013-03-26
申请号：US13289369
申请日：2011-11-04
申请人： Hitoshi Hatate , Hisayoshi Watanabe , Masachika Hashino , Koichi Otani
发明人： Hitoshi Hatate , Hisayoshi Watanabe , Masachika Hashino , Koichi Otani
IPC分类号： G02B5/127
CPC分类号： G11B5/3169 , G11B5/1278 , G11B5/3116 , G11B5/3166 , Y10T29/49048
摘要： A method for manufacturing a thin-film magnetic head includes processes of forming a polishing position sensor and a recording head portion alongside on one side of a wafer. The process of forming the recording head portion has a step of performing a photolithography process after applying an alkali soluble resin film and a photoresist film in the named order. The process of forming the polishing position sensor has a step of performing a photolithography process on the photoresist film while having only the photoresist film out of the alkali soluble resin film and the photoresist film.
摘要翻译：一种制造薄膜磁头的方法包括在晶片的一侧旁边形成研磨位置传感器和记录头部的工序。形成记录头部分的过程具有按照所述顺序施加碱溶性树脂膜和光致抗蚀剂膜之后进行光刻工艺的步骤。形成抛光位置传感器的过程具有在光致抗蚀剂膜上进行光刻工艺的步骤，同时在碱溶性树脂膜和光致抗蚀剂膜中仅具有光致抗蚀剂膜。

25. 发明申请

US20140002921A1 THIN-FILM MAGNETIC RECORDING HEAD WITH THIN FILM WHICH CONSTRUCTS SENSOR OR HEATER BENEATH MAIN MAGNETIC POLE 有权
标题翻译：薄膜电磁记录头，薄膜薄膜，构成传感器或加热器主体磁极
公开(公告)号：US20140002921A1
公开(公告)日：2014-01-02
申请号：US13535858
申请日：2012-06-28
申请人： Masashi SANO , Hiromichi Umehara , Mutsumi Fujita , Isamu Toba , Tatsuhiro Nojima , Hitoshi Hatate , Hisayoshi Watanabe
发明人： Masashi SANO , Hiromichi Umehara , Mutsumi Fujita , Isamu Toba , Tatsuhiro Nojima , Hitoshi Hatate , Hisayoshi Watanabe
IPC分类号： G11B5/31
CPC分类号： G11B5/607
摘要： A thin film magnetic recording head having a multilayer structure in which plural thin films are laminated and being a perpendicular recording type that applies a magnetic field perpendicularly to a magnetic recording medium and performs recording, includes a main magnetic pole exposed on an air bearing surface facing the magnetic recording medium and guiding a magnetic flux toward the magnetic recording medium, a thin film positioned beneath the main magnetic pole from a perspective of a lamination direction and configuring a sensor or a heater configured to determine a distance from the magnetic recording medium of the thin film magnetic recording head, and a light-absorbing portion positioned between the main magnetic pole and the thin film.
摘要翻译：一种薄膜磁记录头，其具有层叠多个薄膜的多层结构，并且是垂直记录方式，其垂直于磁记录介质施加磁场并进行记录，该磁记录头包括暴露在空气轴承表面磁记录介质，并向磁记录介质引导磁通量，从层叠方向的角度定位在主磁极下方的薄膜，以及配置传感器或加热器，该传感器或加热器被配置为确定与磁记录介质的距离薄膜磁记录头和位于主磁极和薄膜之间的光吸收部分。

26. 发明授权

US08654479B2 Thin-film magnetic recording head with thin film which constructs sensor or heater beneath main magnetic pole 有权
标题翻译：具有薄膜的薄膜磁记录头，其在主磁极下构造传感器或加热器
公开(公告)号：US08654479B2
公开(公告)日：2014-02-18
申请号：US13535858
申请日：2012-06-28
申请人： Masashi Sano , Hiromichi Umehara , Mutsumi Fujita , Isamu Toba , Tatsuhiro Nojima , Hitoshi Hatate , Hisayoshi Watanabe
发明人： Masashi Sano , Hiromichi Umehara , Mutsumi Fujita , Isamu Toba , Tatsuhiro Nojima , Hitoshi Hatate , Hisayoshi Watanabe
IPC分类号： G11B5/127
CPC分类号： G11B5/607
摘要： A thin film magnetic recording head having a multilayer structure in which plural thin films are laminated and being a perpendicular recording type that applies a magnetic field perpendicularly to a magnetic recording medium and performs recording, includes a main magnetic pole exposed on an air bearing surface facing the magnetic recording medium and guiding a magnetic flux toward the magnetic recording medium, a thin film positioned beneath the main magnetic pole from a perspective of a lamination direction and configuring a sensor or a heater configured to determine a distance from the magnetic recording medium of the thin film magnetic recording head, and a light-absorbing portion positioned between the main magnetic pole and the thin film.
摘要翻译：一种薄膜磁记录头，其具有层叠多个薄膜的多层结构，并且是垂直记录方式，其垂直于磁记录介质施加磁场并进行记录，该磁记录头包括暴露在空气轴承表面磁记录介质，并向磁记录介质引导磁通量，从层叠方向的角度定位在主磁极下方的薄膜，以及配置传感器或加热器，该传感器或加热器被配置为确定与磁记录介质的距离薄膜磁记录头和位于主磁极和薄膜之间的光吸收部分。

27. 发明申请

US20050052899A1 Magnetoresistive element, magnetic memory cell, and magnetic memory device 有权
标题翻译：磁阻元件，磁存储单元和磁存储器件
公开(公告)号：US20050052899A1
公开(公告)日：2005-03-10
申请号：US10934565
申请日：2004-09-07
申请人： Hitoshi Hatate
发明人： Hitoshi Hatate
IPC分类号： G11C11/15 , G11C11/16 , H01L21/8246 , H01L27/105 , H01L43/08 , G11C11/00
CPC分类号： G11C11/16
摘要： The present invention provides a magnetic memory device capable of performing stable information writing operation by efficiently using a magnetic field generated by current flowing in a conductor and stably holding written information. A magnetic memory device includes: magnetic yoke disposed in correspondence with a region in which a write bit line and a write word line cross each other and constructed so as to surround partially or entirely the periphery of the lines; and a stacked body including a second magnetic layer of which magnetization direction changes according to an external magnetic field, and magnetically coupled to the magnetic yoke. The second magnetic layer has coercive force larger than that of the magnetic yoke, and coercive force of the magnetic yoke increases toward the second magnetic layer. Thus, the influence by remanent magnetization of the magnetic yoke can be suppressed, and the magnetization direction of the second magnetic layer can be stably held.
摘要翻译：本发明提供一种能够通过有效地利用在导体中流动的电流产生的磁场来进行稳定的信息写入动作的磁存储装置，并稳定地保持书写信息。磁存储器件包括：与写位线和写字线交叉的区域相对应设置的磁轭，其构造为部分或全部包围线的周边; 以及包括其磁化方向根据外部磁场而变化的第二磁性层并磁耦合到磁轭的层叠体。第二磁性层具有大于磁轭的矫顽力，并且磁轭的矫顽力朝向第二磁性层增加。因此，可以抑制磁轭的残余磁化的影响，并且可以稳定地保持第二磁性层的磁化方向。

28. 发明授权

US08116034B2 Thermally assisted magnetic head having main pole arranged between near-field light-generating portions and manufacturing method of same 有权
标题翻译：具有设置在近场发光部之间的主极的热辅助磁头及其制造方法
公开(公告)号：US08116034B2
公开(公告)日：2012-02-14
申请号：US12204452
申请日：2008-09-04
申请人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
发明人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/314 , G11B2005/0021
摘要： When first and second near-field light-generating portions are irradiated with laser light or other energy rays, near-field light is generated at the tips of both the near-field light-generating portions. By means of the near-field light thus generated, a magnetic recording medium opposing the medium-opposing surface is heated, and the coercivity of the magnetic recording medium is lowered. Since at least a portion of the main magnetic pole is positioned within the spot region including the region between the first and second near-field light-generating portions, the tips of both the near-field light-generating portions and the main magnetic pole can be brought extremely close together, and high-density recording can be performed.
摘要翻译：当用激光或其他能量射线照射第一和第二近场光产生部分时，在近场光产生部分的尖端处产生近场光。通过这样产生的近场光，加热与介质相对表面相对的磁记录介质，并降低磁记录介质的矫顽力。由于主磁极的至少一部分位于包括第一和第二近场发光部之间的区域的光点区域内，因此近场发光部和主磁极两者的尖端被非常靠近在一起，并且可以执行高密度记录。

29. 发明申请

US20090168220A1 THERMALLY ASSISTED MAGNETIC HEAD AND MANUFACTURING METHOD OF SAME 有权
标题翻译：热辅助磁头及其制造方法
公开(公告)号：US20090168220A1
公开(公告)日：2009-07-02
申请号：US12204452
申请日：2008-09-04
申请人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
发明人： Eiji Komura , Koji Shimazawa , Kosuke Tanaka , Seiichi Takayama , Hitoshi Hatate
IPC分类号： G11B5/02 , B44C1/22
CPC分类号： G11B5/314 , G11B2005/0021
摘要： When first and second near-field light-generating portions are irradiated with laser light or other energy rays, near-field light is generated at the tips of both the near-field light-generating portions. By means of the near-field light thus generated, a magnetic recording medium opposing the medium-opposing surface is heated, and the coercivity of the magnetic recording medium is lowered. Since at least a portion of the main magnetic pole is positioned within the spot region including the region between the first and second near-field light-generating portions, the tips of both the near-field light-generating portions and the main magnetic pole can be brought extremely close together, and high-density recording can be performed.
摘要翻译：当用激光或其他能量射线照射第一和第二近场光产生部分时，在近场光产生部分的尖端处产生近场光。通过这样产生的近场光，加热与介质相对表面相对的磁记录介质，并降低磁记录介质的矫顽力。由于主磁极的至少一部分位于包括第一和第二近场发光部之间的区域的光点区域内，因此近场发光部和主磁极两者的尖端被非常靠近在一起，并且可以执行高密度记录。

30. 发明授权

US07449760B2 Magnetoresistive element, magnetic memory cell, and magnetic memory device 有权
标题翻译：磁阻元件，磁存储单元和磁存储器件
公开(公告)号：US07449760B2
公开(公告)日：2008-11-11
申请号：US10934565
申请日：2004-09-07
申请人： Hitoshi Hatate
发明人： Hitoshi Hatate
IPC分类号： H01L29/82 , H01L43/00
CPC分类号： G11C11/16
摘要： The present invention provides a magnetic memory device capable of performing stable information writing operation by efficiently using a magnetic field generated by current flowing in a conductor and stably holding written information. A magnetic memory device includes: magnetic yoke disposed in correspondence with a region in which a write bit line and a write word line cross each other and constructed so as to surround partially or entirely the periphery of the lines; and a stacked body including a second magnetic layer of which magnetization direction changes according to an external magnetic field, and magnetically coupled to the magnetic yoke. The second magnetic layer has coercive force larger than that of the magnetic yoke, and coercive force of the magnetic yoke increases toward the second magnetic layer. Thus, the influence by remanent magnetization of the magnetic yoke can be suppressed, and the magnetization direction of the second magnetic layer can be stably held.
摘要翻译：本发明提供一种能够通过有效地利用在导体中流动的电流产生的磁场来进行稳定的信息写入动作的磁存储装置，并稳定地保持书写信息。磁存储器件包括：与写位线和写字线交叉的区域相对应设置的磁轭，其构造为部分或全部包围线的周边; 以及包括其磁化方向根据外部磁场而变化的第二磁性层并磁耦合到磁轭的层叠体。第二磁性层具有大于磁轭的矫顽力，并且磁轭的矫顽力朝向第二磁性层增加。因此，可以抑制磁轭的残余磁化的影响，并且可以稳定地保持第二磁性层的磁化方向。

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