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1.发明申请ANGLE SENSOR, ANGLE SENSOR MANUFACTURING METHOD, AND ANGLE DETECTION DEVICE USING THE ANGLE SENSOR 有权角度传感器，角度传感器制造方法和使用角度传感器的角度检测装置公开(公告)号：US20100327857A1
公开(公告)日：2010-12-30
申请号：US12864997
申请日：2008-12-03
IPC分类号： G01B7/30
CPC分类号： G01R33/093 , B82Y25/00 , G01R33/098
摘要： There is provided an angle sensor and angle detection device of high output and high accuracy with a wide operating temperature range. First through eighth sensor units 511, 522, 523, 514, 531, 542, 543 and 534 are produced from spin valve magnetoresistive films that use a self-pinned type ferromagnetic pinned layer comprising two layers of ferromagnetic films that are strongly and anti-ferromagnetically coupled. The respective sensor units are produced via the formation and patterning of thin-films magnetized at angles that differ by 90°, and the formation of insulation films. By using, for the ferromagnetic films, CoFe and FeCo films that have similar Curie temperatures to make the difference in magnetization amount be zero, high immunity to external magnetic fields, a broad adaptive temperature range, and high output are realized.
摘要翻译： 在宽工作温度范围内提供高输出和高精度的角度传感器和角度检测装置。 第一至第八传感器单元511,522,543,514,531,542,543和534由自旋阀磁阻膜制造，该自旋阀磁阻膜使用包括两层强磁性和反铁磁性的铁磁性薄膜的自固定型铁磁性钉扎层 耦合。 相应的传感器单元通过以不同于90°的角度磁化的薄膜的形成和图案化以及形成绝缘膜来制造。 通过对铁磁膜使用具有相似居里温度的CoFe和FeCo膜，使磁化强度的差异为零，实现了对外部磁场的高抗扰性，宽适应温度范围和高输出。
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2.发明授权Magnetic encoder having a stable output property with unsaturated magnetic sensor 有权具有不饱和磁传感器稳定输出特性的磁编码器公开(公告)号：US07400137B1
公开(公告)日：2008-07-15
申请号：US11834062
申请日：2007-08-06
CPC分类号： G01R33/093 , B82Y25/00
摘要： The present invention provides a magnetic sensor suitable for high resolution and having high reliability by achieving stable output even at the occurrence of variations in a gap between a magnetic medium and the magnetic sensor, and a magnetic encoder using the magnetic sensor. The present invention uses a magnetoresistive element having magnetoresistive properties that satisfy the inequation, H10−50
摘要翻译： 本发明提供一种适用于高分辨率的磁传感器，即使在磁介质和磁传感器之间的间隙发生变化的情况下也能实现稳定的输出，并具有高的可靠性，以及使用该磁传感器的磁编码器。 本发明使用具有满足H10-50
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公开(公告)号：US20080068007A1
公开(公告)日：2008-03-20
申请号：US11676608
申请日：2007-02-20
IPC分类号： G01B7/14
CPC分类号： G01D5/145 , B82Y25/00 , G01R33/093 , G11B5/59683
摘要： To provide a magnetic encoder having high resolution and a high output, and a magnetoresistive sensor for an encoder. A fine sensor having a reduced demagnetization field is produced by: forming a free layer consists of a laminated soft magnetic film in which two soft magnetic layers are coupled in anti-parallel, and setting the width of a sensor unit to 2 μm to 4 μm.
摘要翻译： 提供具有高分辨率和高输出的磁编码器和用于编码器的磁阻传感器。 具有减少退磁场的精细传感器通过以下方式产生：形成自由层，其由两层软磁层反平行连接的层叠软磁膜构成，并将传感器单元的宽度设定为2μm至4μm 。
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公开(公告)号：US07456758B2
公开(公告)日：2008-11-25
申请号：US11676608
申请日：2007-02-20
IPC分类号： H03M1/22
CPC分类号： G01D5/145 , B82Y25/00 , G01R33/093 , G11B5/59683
摘要： To provide a magnetic encoder having high resolution and a high output, and a magnetoresistive sensor for an encoder. A fine sensor having a reduced demagnetization field is produced by: forming a free layer consists of a laminated soft magnetic film in which two soft magnetic layers are coupled in anti-parallel, and setting the width of a sensor unit to 2 μm to 4 μm.
摘要翻译： 提供具有高分辨率和高输出的磁编码器和用于编码器的磁阻传感器。 具有减少退磁场的精细传感器通过以下方式产生：形成自由层，其由两层软磁层反平行连接的层叠软磁膜构成，并将传感器单元的宽度设定为2μm至4μm 。
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公开(公告)号：US08174799B2
公开(公告)日：2012-05-08
申请号：US12218860
申请日：2008-07-17
申请人： Hiroyuki Hoshiya , Kenichi Meguro , Katsumi Hoshino , You Sato , Hiroyuki Katada , Kazuhiro Nakamoto
发明人： Hiroyuki Hoshiya , Kenichi Meguro , Katsumi Hoshino , You Sato , Hiroyuki Katada , Kazuhiro Nakamoto
IPC分类号： G11B5/39
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3929 , G11B2005/3996
摘要： Embodiments of the present invention help to provide a single element type differential magnetoresistive magnetic head capable of achieving high resolution and high manufacturing stability. According to one embodiment, a magnetoresistive layered film is formed by stacking an underlayer film, an antiferromagnetic film, a ferromagnetic pinned layer, a non-magnetic intermediate layer, a soft magnetic free layer, a long distance antiparallel coupling layered film, and a differential soft magnetic free layer. The long distance antiparallel coupling layered film exchange-couples the soft magnetic free layer and the differential soft magnetic free layer in an antiparallel state with a distance of about 3 nanometers through 20 nanometers. By manufacturing the single element type differential magnetoresistive magnetic head using the magnetoresistive layered film, it becomes possible to achieve the high resolution and the high manufacturing stability without spoiling the GMR effect.
摘要翻译： 本发明的实施例有助于提供能够实现高分辨率和高制造稳定性的单元型差分磁阻磁头。 根据一个实施例，通过堆叠下层膜，反铁磁性膜，铁磁性钉扎层，非磁性中间层，软磁性自由层，长距离反向平行耦合层叠膜和差动层叠膜形成磁阻层叠膜 软磁自由层。 长距离反平行耦合分层膜将软磁自由层和差分软磁自由层以约3纳米至20纳米的距离反平行状态进行交换耦合。 通过使用磁阻层叠膜制造单元型差分磁阻磁头，可以实现高分辨率和高制造稳定性而不破坏GMR效应。
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公开(公告)号：US20090034135A1
公开(公告)日：2009-02-05
申请号：US12218860
申请日：2008-07-17
申请人： Hiroyuki Hoshiya , Kenichi Meguro , Katsumi Hoshino , Yo Sato , Hiroyuki Katada , Kazuhiro Nakamoto
发明人： Hiroyuki Hoshiya , Kenichi Meguro , Katsumi Hoshino , Yo Sato , Hiroyuki Katada , Kazuhiro Nakamoto
IPC分类号： G11B5/33
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3929 , G11B2005/3996
摘要： Embodiments of the present invention help to provide a single element type differential magnetoresistive magnetic head capable of achieving high resolution and high manufacturing stability. According to one embodiment, a magnetoresistive layered film is formed by stacking an underlayer film, an antiferromagnetic film, a ferromagnetic pinned layer, a non-magnetic intermediate layer, a soft magnetic free layer, a long distance antiparallel coupling layered film, and a differential soft magnetic free layer. The long distance antiparallel coupling layered film exchange-couples the soft magnetic free layer and the differential soft magnetic free layer in an antiparallel state with a distance of about 3 nanometers through 20 nanometers. By manufacturing the single element type differential magnetoresistive magnetic head using the magnetoresistive layered film, it becomes possible to achieve the high resolution and the high manufacturing stability without spoiling the GMR effect.
摘要翻译： 本发明的实施例有助于提供能够实现高分辨率和高制造稳定性的单元型差分磁阻磁头。 根据一个实施例，通过堆叠下层膜，反铁磁性膜，铁磁性钉扎层，非磁性中间层，软磁性自由层，长距离反向平行耦合层叠膜和差动层叠膜形成磁阻层叠膜 软磁自由层。 长距离反平行耦合分层膜将软磁自由层和差分软磁自由层以约3纳米至20纳米的距离反平行状态进行交换耦合。 通过使用磁阻层叠膜制造单元型差分磁阻磁头，可以实现高分辨率和高制造稳定性而不破坏GMR效应。
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7.发明申请METHOD FOR PRODUCING MAGNETORESISTIVE EFFECT ELEMENT, MAGNETIC SENSOR, ROTATION-ANGLE DETECTION DEVICE 有权用于制造磁阻效应元件，磁传感器，旋转角度检测装置的方法公开(公告)号：US20120112741A1
公开(公告)日：2012-05-10
申请号：US13321896
申请日：2010-07-13
申请人： Kenichi Meguro , Hiroyuki Hoshiya , Keizou Katou , Yasunori Abe
发明人： Kenichi Meguro , Hiroyuki Hoshiya , Keizou Katou , Yasunori Abe
CPC分类号： G01R33/093 , B82Y25/00 , G01B7/30 , H01L43/08 , H01L43/12
摘要： To provide a method which can define the direction and orientation of magnetization of a pinned layer while reducing the number of steps of forming a GMR film. The magnetization direction of the pinned layer is defined in a plurality of directions by forming a plurality of patterns having directivities. Further, when the magneto-resistive effect film is formed, a magnetic field is applied in a direction at an angle set between the angles of the plurality of patterns.
摘要翻译： 提供一种可以限定被钉扎层的磁化方向和取向同时减少形成GMR膜的步骤数量的方法。 钉扎层的磁化方向通过形成具有方向性的多个图案而在多个方向上限定。 此外，当形成磁阻效应膜时，以在多个图案的角度之间设定的角度的方向施加磁场。
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8.发明授权Method for producing magnetoresistive effect element, magnetic sensor, rotation-angle detection device 有权磁阻效应元件，磁传感器，旋转角度检测装置的制造方法公开(公告)号：US08779764B2
公开(公告)日：2014-07-15
申请号：US13321896
申请日：2010-07-13
申请人： Kenichi Meguro , Hiroyuki Hoshiya , Keizou Katou , Yasunori Abe
发明人： Kenichi Meguro , Hiroyuki Hoshiya , Keizou Katou , Yasunori Abe
IPC分类号： G01R33/02
CPC分类号： G01R33/093 , B82Y25/00 , G01B7/30 , H01L43/08 , H01L43/12
摘要： To provide a method which can define the direction and orientation of magnetization of a pinned layer while reducing the number of steps of forming a GMR film. The magnetization direction of the pinned layer is defined in a plurality of directions by forming a plurality of patterns having directivities. Further, when the magneto-resistive effect film is formed, a magnetic field is applied in a direction at an angle set between the angles of the plurality of patterns.
摘要翻译： 提供一种可以限定被钉扎层的磁化方向和取向同时减少形成GMR膜的步骤数量的方法。 钉扎层的磁化方向通过形成具有方向性的多个图案而在多个方向上限定。 此外，当形成磁阻效应膜时，以在多个图案的角度之间设定的角度的方向施加磁场。
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9.发明授权Magnetic head with domain stabilization and magnetic recording/reproducing apparatus using the same 失效具有域稳定性的磁头和使用其的磁记录/再现装置公开(公告)号：US07440240B2
公开(公告)日：2008-10-21
申请号：US11102067
申请日：2005-04-08
IPC分类号： G11B5/33
CPC分类号： B82Y10/00 , G11B5/3903 , G11B5/3932
摘要： Embodiments of the invention provide a spin-valve type magnetic head that satisfies the requirements of both high read output and stability with narrow tracks. In one embodiment, a domain control film is formed on a magnetoresistive layered film in the same track width. A double closed flux path structure that uses three magnetic layers is employed with magnetic coupled structure in both ends of the track. The three magnetic layers are a soft magnetic free layer, a domain-stabilization ferromagnetic layer, and a soft magnetic anti-parallel layer.
摘要翻译： 本发明的实施例提供一种自旋阀式磁头，其满足窄读出输出和稳定性两个要求。 在一个实施例中，域控制膜以相同的轨道宽度形成在磁阻层叠膜上。 使用三个磁性层的双闭合磁通路径结构在磁道的两端采用磁耦合结构。 三个磁性层是软磁自由层，畴稳定铁磁层和软磁反平行层。
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公开(公告)号：US20070091511A1
公开(公告)日：2007-04-26
申请号：US11584397
申请日：2006-10-19
申请人： Hiroyuki Hoshiya , Katsumi Hoshino , Kenichi Meguro , Yo Sato , Hiroyuki Katada
发明人： Hiroyuki Hoshiya , Katsumi Hoshino , Kenichi Meguro , Yo Sato , Hiroyuki Katada
CPC分类号： G11B5/3929 , B82Y10/00 , B82Y25/00 , G11B2005/3996
摘要： A spin-valve type magnetic head which has sufficiently high output is provided. In one embodiment, a structure in which high output coexists with high stability is achieved by letting a GMR-effect and a current-path-confinement effect manifest themselves at the same time in a GMR-screen layer consisting of a ferromagnetic metal spike-like part and a half-covering oxide layer.
摘要翻译： 提供具有足够高输出的自旋阀式磁头。 在一个实施例中，通过在由铁磁性金属尖状形成的GMR屏幕层中同时显现GMR效应和电流路径限制效应来实现高输出共存高稳定性的结构 半覆盖氧化层。
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