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1. 发明授权

US06603643B2 Magnetoresistive head containing oxide layer 失效
公开(公告)号：US06603643B2
公开(公告)日：2003-08-05
申请号：US09970642
申请日：2001-10-05
申请人： Hiroyuki Hoshiya , Kenichi Meguro , Takao Imagawa
发明人： Hiroyuki Hoshiya , Kenichi Meguro , Takao Imagawa
IPC分类号： G11B5127
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3903 , G11B2005/3996
摘要： An oxide layer and an antiparallel coupling layer are inserted into a ferromagnetic pinned layer to be subjected to heat treatment with appropriate ferromagnetic film thickness and magnetization field to form a spin-valve film, which is controlled in amount of magnetization and is high in magnetoresistance.

2. 发明申请

US20100327857A1 ANGLE SENSOR, ANGLE SENSOR MANUFACTURING METHOD, AND ANGLE DETECTION DEVICE USING THE ANGLE SENSOR 有权
标题翻译：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
申请人： Hiroyuki Hoshiya , Kenichi Meguro , Kazuhiro Nakamoto , Yasunori Abe
发明人： Hiroyuki Hoshiya , Kenichi Meguro , Kazuhiro Nakamoto , Yasunori Abe
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。

3. 发明授权

US07440240B2 Magnetic head with domain stabilization and magnetic recording/reproducing apparatus using the same 失效
标题翻译：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
申请人： Hiroyuki Hoshiya , Katsumi Hoshino , Masahiko Hatatani , Kenichi Meguro
发明人： Hiroyuki Hoshiya , Katsumi Hoshino , Masahiko Hatatani , Kenichi Meguro
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。

4. 发明申请

US20070091511A1 CPP-GMR magnetic head having GMR-screen layer 有权
标题翻译：具有GMR屏幕层的CPP-GMR磁头
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
IPC分类号： G11B5/127 , G11B5/33
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。

5. 发明申请

US20050225907A1 Magnetic head with domain stabilization and magnetic recording/reproducing apparatus using the same 失效
标题翻译：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：US20050225907A1
公开(公告)日：2005-10-13
申请号：US11102067
申请日：2005-04-08
申请人： Hiroyuki Hoshiya , Katsumi Hoshino , Masahiko Hatatani , Kenichi Meguro
发明人： Hiroyuki Hoshiya , Katsumi Hoshino , Masahiko Hatatani , Kenichi Meguro
IPC分类号： G11B5/127 , G11B5/33 , G11B5/39 , H01L43/08
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。

6. 发明授权

US07876536B2 Multilayered film having crystal grains grown at an inclination to a substrate, and magnetoresistive head using the film 有权
标题翻译：具有以基板倾斜生长的晶粒的多层膜和使用该膜的磁阻头
公开(公告)号：US07876536B2
公开(公告)日：2011-01-25
申请号：US11784212
申请日：2007-04-04
申请人： Katsumi Hoshino , Hiroyuki Hoshiya , Kenichi Meguro , Yo Sato
发明人： Katsumi Hoshino , Hiroyuki Hoshiya , Kenichi Meguro , Yo Sato
IPC分类号： G11B5/39
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G11B5/3906 , G11B2005/3996 , Y10T428/1121
摘要： Embodiments of the present invention provides sufficiently high exchange coupling with a magnetic layer and improve the yield and reliability of a magnetoresistive head. By using a tilted growth crystalline structured antiferromagnetic film manufactured by an oblique incident deposition method, a high exchange coupling field with a ferromagnetic film can be obtained. As a result, excellent reliability and high output can be obtained in a magnetoresistive head utilizing features in accordance with embodiments of the present invention.
摘要翻译：本发明的实施例提供了与磁性层的充分高的交换耦合，并提高了磁阻磁头的成品率和可靠性。通过使用通过倾斜入射沉积法制造的倾斜生长晶体结构的反铁磁膜，可以获得具有铁磁膜的高交换耦合场。因此，利用根据本发明的实施例的特征，可以获得在磁阻头中的优异的可靠性和高输出。

7. 发明申请

US20100188771A1 Magnetoresistive Magnetic Head 有权
标题翻译：磁阻磁头
公开(公告)号：US20100188771A1
公开(公告)日：2010-07-29
申请号：US12636649
申请日：2009-12-11
申请人： Susumu Okamura , Yo Sato , Katsumi Hoshino , Hiroyuki Hoshiya , Kenichi Meguro , Keizo Kato
发明人： Susumu Okamura , Yo Sato , Katsumi Hoshino , Hiroyuki Hoshiya , Kenichi Meguro , Keizo Kato
IPC分类号： G11B21/02 , G11B5/39
CPC分类号： H01F10/3268 , B82Y10/00 , B82Y25/00 , G01R33/093 , G11B5/3906 , G11B2005/3996 , H01F10/1936 , H01L43/08 , Y10T428/1121
摘要： A magnetoresistive magnetic head according to one embodiment uses a current-perpendicular-to-plane magnetoresistive element having a laminate of a free layer, an intermediate layer, and a pinned layer, the pinned layer being substantially fixed to a magnetic field to be detected, wherein either the pinned layer or the free layer includes a Heusler alloy layer represented by a composition of X-Y-Z, wherein X is between about 45 at. % and about 55 at. % and is Co or Fe, Y accounts for between about 20 at. % and about 30 at. % and is one or more elements selected from V, Cr, Mn, and Fe, and Z is between about 20 at. % and about 35 at. % and is one or more elements selected from Al, Si, Ga, Ge, Sn, and Sb, the other layer including a high saturation magnetization material layer having higher saturation magnetization than that of the Heusler alloy, and where the direction of the current flowing perpendicular to plane being a direction in which an electron flows from the Heusler alloy layer into the high saturation magnetization material layer. Additional embodiments are also presented.
摘要翻译：根据一个实施例的磁阻磁头使用具有自由层，中间层和被钉扎层的叠层的电流 - 垂直于平面的磁阻元件，被钉扎层基本上固定在待检测的磁场上，其中所述被钉扎层或所述自由层包括由XYZ的组合物表示的Heusler合金层，其中X在约45at之间。％和约55在。％，为Co或Fe，Y约为20盎司。％和约30在。％且为选自V，Cr，Mn和Fe中的一种或多种元素，Z为约20at。％和约35英寸％，并且是选自Al，Si，Ga，Ge，Sn和Sb中的一种或多种元素，另一层包括具有比Heusler合金高饱和磁化强度的高饱和磁化材料层，并且其中电流方向垂直于平面流动的方向是电子从Heusler合金层流入高饱和磁化材料层的方向。还提供了另外的实施例。

8. 发明授权

US07733614B2 Magneto-resistive head having a stable response property without longitudinal biasing and method for manufacturing the same 失效
标题翻译：具有稳定的响应特性而不具有纵向偏置的磁阻头及其制造方法
公开(公告)号：US07733614B2
公开(公告)日：2010-06-08
申请号：US11698251
申请日：2007-01-24
申请人： Kenichi Meguro , Hiroyuki Katada , Katsumi Hoshino , Hiroyuki Hoshiya
发明人： Kenichi Meguro , Hiroyuki Katada , Katsumi Hoshino , Hiroyuki Hoshiya
IPC分类号： G11B5/127
CPC分类号： G11B5/399 , B82Y25/00 , G01R33/093 , G11B5/3906 , H01L43/08 , H01L43/12
摘要： Embodiments in accordance with the present invention provide a method of manufacturing a magneto-resistive head which can realize high sensitivity and good linear response characteristics with low noise even if a track width becomes narrower. A uniaxial anisotropy unaffected by annealing which is due to the orientation of the crystal grain growth direction, is induced in a magnetic layer. The free magnetic layer has the synthetic antiferromagnetic construction: first magnetic layer/interlayer antiferromagnetic coupling layer/second magnetic layer, the magnitude of the antiferromagnetic coupling is adjusted, and linear response characteristics are obtained even if a longitudinal biasing field applying mechanism is not provided.
摘要翻译：根据本发明的实施例提供一种制造磁阻头的方法，即使轨道宽度变窄，其也可以实现具有低噪声的高灵敏度和良好的线性响应特性。在磁性层中诱发不受退火影响的单轴各向异性，这是由于晶粒生长方向的取向引起的。自由磁性层具有合成的反铁磁结构：第一磁性层/层间反铁磁耦合层/第二磁性层，调整反铁磁耦合的大小，并且即使没有提供纵向偏置场施加机构也可获得线性响应特性。

9. 发明申请

US20090034135A1 Differential magnetoresistive magnetic head 有权
标题翻译：差分磁阻磁头
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。

10. 发明授权

US08174799B2 Differential magnetoresistive magnetic head 有权
标题翻译：差分磁阻磁头
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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