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    Magnetic Recording Head, Method of Manufacturing the Same, and Magnetic Recording/Reproducing Device
    1.
    发明申请
    Magnetic Recording Head, Method of Manufacturing the Same, and Magnetic Recording/Reproducing Device 有权
    磁记录头，其制造方法和磁记录/再现装置

    公开(公告)号：US20100091413A1

    公开(公告)日：2010-04-15

    申请号：US12559349

    申请日：2009-09-14

    申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Hiroyuki Hoshiya

    发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Hiroyuki Hoshiya

    IPC分类号： G11B5/127 ,  C23F1/00

    CPC分类号： G11B5/1871 ,  G11B5/1278 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/3163

    摘要： According to one embodiment, a magnetic recording head includes a main pole having a throat height portion and a flare portion that is connected to the throat height portion, the flare portion gradually being expanded in width to an upper part in an element height direction. The head also includes a sub pole, magnetic shields disposed via a nonmagnetic layer on a trailing side of the main pole and on both sides in a track width direction of the main pole, and a coil for generating a recording magnetic field from the main pole. The nonmagnetic layer has an upper portion of which the thickness is increased stepwise or in a tapered manner in the element height direction with respect to an ABS side, and each portion of the magnetic shields adjacent to the main pole has a shape corresponding to a surface shape of the nonmagnetic layer.

    摘要翻译： 根据一个实施例，磁记录头包括具有喉部高度部分的主极和连接到喉部高度部分的扩张部分，喇叭部分在宽度上逐渐扩大到元件高度方向上的上部。 磁头还包括一个副磁极，通过主磁极的后侧上的非磁性层和主磁极的磁道宽度方向上的两侧设置的磁屏蔽，以及用于从主极产生记录磁场的线圈 。 非磁性层的上部具有相对于ABS侧在元件高度方向上阶梯状或锥形化的增加部分，并且与主极相邻的磁屏蔽的各部分具有与表面对应的形状 非磁性层的形状。

    Magnetic recording head, method of manufacturing the same, and magnetic recording/reproducing device
    2.
    发明授权
    Magnetic recording head, method of manufacturing the same, and magnetic recording/reproducing device 有权
    磁记录头，其制造方法和磁记录/再现装置

    公开(公告)号：US08351153B2

    公开(公告)日：2013-01-08

    申请号：US12559349

    申请日：2009-09-14

    申请人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Hiroyuki Hoshiya

    发明人： Isao Nunokawa ,  Mikito Sugiyama ,  Kikuo Kusukawa ,  Hiroyuki Hoshiya

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1871 ,  G11B5/1278 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/3163

    摘要： According to one embodiment, a magnetic recording head includes a main pole having a throat height portion and a flare portion that is connected to the throat height portion, the flare portion gradually being expanded in width to an upper part in an element height direction. The head also includes a sub pole, magnetic shields disposed via a nonmagnetic layer on a trailing side of the main pole and on both sides in a track width direction of the main pole, and a coil for generating a recording magnetic field from the main pole. The nonmagnetic layer has an upper portion of which the thickness is increased stepwise or in a tapered manner in the element height direction with respect to an ABS side, and each portion of the magnetic shields adjacent to the main pole has a shape corresponding to a surface shape of the nonmagnetic layer.

    摘要翻译： 根据一个实施例，磁记录头包括具有喉部高度部分的主极和连接到喉部高度部分的扩张部分，喇叭部分在宽度上逐渐扩大到元件高度方向上的上部。 磁头还包括一个副磁极，通过主磁极的后侧上的非磁性层和主磁极的磁道宽度方向上的两侧设置的磁屏蔽，以及用于从主极产生记录磁场的线圈 。 非磁性层的上部具有相对于ABS侧在元件高度方向上阶梯状或锥形化的增加部分，并且与主极相邻的磁屏蔽的各部分具有与表面对应的形状 非磁性层的形状。

    Magnetic head using a synthetic ferri free structure
    6.
    发明授权
    Magnetic head using a synthetic ferri free structure 有权
    磁头使用合成无铁结构

    公开(公告)号：US09245548B2

    公开(公告)日：2016-01-26

    申请号：US12011334

    申请日：2008-01-25

    申请人： Masato Shiimoto ,  Hiroyuki Katada ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya

    发明人： Masato Shiimoto ,  Hiroyuki Katada ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya

    IPC分类号： G11B5/39 ,  B82Y10/00 ,  B82Y25/00

    CPC分类号： G11B5/3906 ,  B82Y10/00 ,  B82Y25/00 ,  G11B2005/3996 ,  Y10T428/1121

    摘要： Embodiments of the present invention help to reduce mag-noise in a magnetoresistive head without deterioration in reproduced output and improve the signal/noise ratio (SNR) of the magnetoresistive head. According to one embodiment, the magnetoresistive head uses a synthetic ferri free layer and it is arranged such that the magnetic field which is applied to an end of a free layer with smaller film thickness and saturation magnetization in the track width direction by a coupling field is larger than the magnetic field which is applied to it by a bias layer.

    摘要翻译： 本发明的实施例有助于减少磁阻磁头中的磁噪声，而不会使再现输出变差，并提高磁阻磁头的信噪比（SNR）。 根据一个实施例，磁阻头使用合成的无自由层，并且其布置成使得通过耦合场施加到具有较小膜厚度和磁道宽度方向上的饱和磁化强度的自由层的端部的磁场是 大于通过偏​​置层施加到其的磁场。

    Angle sensor, angle sensor manufacturing method, and angle detection device using the angle sensor
    7.
    发明授权
    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以及使用角度传感器的角度检测装置

    公开(公告)号：US08564282B2

    公开(公告)日：2013-10-22

    申请号：US12864997

    申请日：2008-12-03

    申请人： Hiroyuki Hoshiya ,  Kenichi Meguroo ,  Kazuhiro Nakamoto ,  Yasunori Abe

    发明人： Hiroyuki Hoshiya ,  Kenichi Meguroo ,  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。

    Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using it
    8.
    发明授权
    Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using it 有权
    薄膜垂直磁记录头，其制造工艺和使用它的磁盘驱动器

    公开(公告)号：US08085499B2

    公开(公告)日：2011-12-27

    申请号：US12888621

    申请日：2010-09-23

    申请人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

    发明人： Yoshiaki Kawato ,  Kazuhiro Nakamoto ,  Hiroyuki Hoshiya ,  Yasuyuki Okada ,  Masafumi Mochizuki

    IPC分类号： G11B5/147 ,  G11B5/127

    CPC分类号： G11B5/3906 ,  G11B5/1278

    摘要： Thin film perpendicular magnetic head with a narrow main pole capable of a high recording density in excess of 100 gigabits per square inch and generating a high magnetic recording field, while also being modified to suppress remanent magnetic fields occurring immediately after writing operation. A return path is provided for supplying a magnetic flux to the main pole, and an conductive coil for excitation of the main pole and return path. The main pole has a pole width of 200 nanometers or less, and a magnetic multilayer made up of a high saturation flux density layer and low saturation flux density layer. The low saturation flux density layer and the high saturation flux density suppress remanent magnetization and prevent erasing after writing by utilizing a closed magnetic domain structure in the pole.

    摘要翻译： 具有超过100吉比特/平方英寸的高记录密度的窄主极的薄膜垂直磁头，并产生高磁记录场，同时还进行修改以抑制在写入操作之后立即发生的剩余磁场。 提供用于向主极提供磁通量的返回路径和用于激励主极和返回路径的导电线圈。 主极的极宽为200nm以下，由高饱和磁通密度层和低饱和磁通密度层构成的磁性层叠体。 低饱和磁通密度层和高饱和磁通密度通过利用磁极中的闭合磁畴结构来抑制剩磁，并防止写入后的擦除。

    Magnetoresistive Magnetic Head
    10.
    发明申请
    Magnetoresistive Magnetic Head 有权
    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。