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    Perpendicular magnetic recording and perpendicular magnetic reproducing apparatus
    3.
    发明授权
    Perpendicular magnetic recording and perpendicular magnetic reproducing apparatus 失效
    垂直磁记录和垂直磁再现装置

    公开(公告)号：US5991126A

    公开(公告)日：1999-11-23

    申请号：US960887

    申请日：1992-10-14

    申请人： Kazuhiko Hayashi ,  Kenji Katori ,  Akihiko Okabe

    发明人： Kazuhiko Hayashi ,  Kenji Katori ,  Akihiko Okabe

    IPC分类号： G11B5/02 ,  G11B5/00 ,  G11B5/127 ,  G11B5/64 ,  G11B5/82

    CPC分类号： G11B5/656 ,  G11B5/00 ,  G11B5/1278 ,  G11B5/82

    摘要： The present invention is directed to a perpendicular magnetic recording apparatus and a perpendicular magnetic reproducing apparatus which can achieve high-density recording and high output reproduction. The perpendicular magnetic recording medium (2) is used which has a perpendicular magnetic film made of chiefly Co, Pt and a vertical coercive force of 1500 Oe or above. This recording medium is recorded by the magnetic head (4) of which at least the magnetic gap portion is formed of the soft magnetic thin film (3). This soft magnetic thin film (3) contains chiefly Fe and has a saturation magnetic flux density 4.pi.Ms of 19 kG or above.

    摘要翻译： 本发明涉及一种可实现高密度记录和高输出再现的垂直磁记录装置和垂直磁再现装置。 使用垂直磁记录介质（2），其具有主要由Co，Pt制成的垂直磁性膜和1500Oe或更高的垂直矫顽力。 该记录介质由至少磁隙部分由软磁性薄膜（3）形成的磁头（4）记录。 该软磁性薄膜（3）主要含有Fe，饱和磁通密度为4kG以上的磁通密度。

    Inter-vehicle distance measurement apparatus
    4.
    发明授权
    Inter-vehicle distance measurement apparatus 失效
    车间距离测量装置

    公开(公告)号：US5874904A

    公开(公告)日：1999-02-23

    申请号：US908588

    申请日：1997-08-08

    申请人： Takehide Hirabayashi ,  Hideo Shimizu ,  Taichi Tanigawa ,  Akihiko Okabe ,  Takayuki Usuda

    发明人： Takehide Hirabayashi ,  Hideo Shimizu ,  Taichi Tanigawa ,  Akihiko Okabe ,  Takayuki Usuda

    IPC分类号： G01C3/06 ,  B60R21/00 ,  B60W30/00 ,  G01S11/12 ,  G01S17/89 ,  G01S17/93 ,  G06T1/00 ,  G06T7/00 ,  G08G1/16

    CPC分类号： G06T7/0075 ,  G01S11/12

    摘要： An inter-vehicle distance to a preceding or following vehicle is reliably determined by using a simple processing, to alert the following vehicle to approach a dangerous range. The distance measurement apparatus includes a pair of light-receiving devices disposed on image-forming surfaces of lenses and having sensor lines and measurement windows on each sensor line at a certain interval, a distance detection device, a white line detection device and a vehicle detection device. The distance detection device detects distances at points, the coordinates of which are specified by the sensor line numbers and measurement window addresses. By using the detection results, the white line detection device detects a sensor line in which a white line on a road surface is present. By using the detection results obtained from the distance detection device relating to the sensor lines in which the white line is not present, the vehicle detection device checks a presence of a vehicle and outputs information on the inter-vehicle distance and the direction of the vehicle. The following vehicle may be alerted by flashing the brake lights.

    摘要翻译： 通过使用简单的处理可靠地确定与前一车辆或后续车辆的车辆间距离，以警告后续车辆接近危险范围。 距离测量装置包括一对光接收装置，其设置在透镜的图像形成表面上，并且在一定间隔的每个传感器线上具有传感器线和测量窗口，距离检测装置，白线检测装置和车辆检测 设备。 距离检测装置检测点处的距离，其坐标由传感器行号和测量窗口地址指定。 通过使用检测结果，白线检测装置检测出存在路面上的白线的传感器线。 通过使用与不存在白线的传感器线相关的距离检测装置获得的检测结果，车辆检测装置检查车辆的存在并输出车辆间距离和车辆方向的信息 。 可以通过闪烁刹车灯来警告以下车辆。

    Magnetoresistance effect element and magnetic field detection device
    5.
    发明授权
    Magnetoresistance effect element and magnetic field detection device 失效
    磁阻效应元件和磁场检测装置

    公开(公告)号：US5828526A

    公开(公告)日：1998-10-27

    申请号：US690756

    申请日：1996-08-01

    申请人： Kiyoshi Kagawa ,  Yoichi Negoro ,  Akihiko Okabe ,  Hiroshi Kano

    发明人： Kiyoshi Kagawa ,  Yoichi Negoro ,  Akihiko Okabe ,  Hiroshi Kano

    IPC分类号： G11B5/39 ,  H01L43/08 ,  H01L43/10 ,  H01L43/00

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3932 ,  H01L43/10 ,  G11B2005/3996 ,  Y10S428/90 ,  Y10T428/1129

    摘要： A magnetoresistance effect element is provided with a magnetoresistance effect film (MR film) formed of alternative laminations of magnetic layers (for example, soft magnetic layers such as Fe--Ni--Co alloy layers) which are coupled anti-ferromagnetically with each other between adjacent magnetic layers and non-magnetic layers (for example, non-magnetic layers such as Cu layers) and provided with a bias soft magnetic layer (for example, SAL layer) for application of a bias magnetic filed to the magnetoresistance effect film, where the anisotropic magnetic field (Hk) in the plane of the bias medium layer is 5 Oe.ltoreq.Hk.ltoreq.15 Oe.

    摘要翻译： 磁阻效应元件设置有由磁性层（例如Fe-Ni-Co合金层的软磁性层）的替代叠层形成的磁阻效应膜（MR膜），它们在相邻之间相互反铁磁结合 磁性层和非磁性层（例如，诸如Cu层的非磁性层），并且设置有偏置软磁层（例如，SAL层），用于向磁阻效应膜施加偏置磁场，其中 偏置介质层平面内的各向异性磁场（Hk）为5Oe / Hk 15 Oe。

    Magnetoresistive head with spin valve film magnetic sensor element
    6.
    发明授权
    Magnetoresistive head with spin valve film magnetic sensor element 失效
    磁阻头带自旋阀膜磁传感元件

    公开(公告)号：US06970332B2

    公开(公告)日：2005-11-29

    申请号：US10627839

    申请日：2003-07-25

    申请人： Hiroki Tetsukawa ,  Yutaka Soda ,  Akihiko Okabe

    发明人： Hiroki Tetsukawa ,  Yutaka Soda ,  Akihiko Okabe

    IPC分类号： G11B5/008 ,  G11B5/255 ,  G11B5/31 ,  G11B5/39 ,  G11B5/40 ,  G11B5/48 ,  G11B5/53 ,  H01F10/16 ,  H01F10/30 ,  H01F10/32 ,  H01L43/08 ,  H01L43/10

    CPC分类号： B82Y10/00 ,  G11B5/0086 ,  G11B5/255 ,  G11B5/3106 ,  G11B5/3903 ,  G11B5/40 ,  G11B5/4893 ,  G11B5/53

    摘要： An improvement in the corrosion resistance of a magnetoresistive head is aimed for, and a high magnetoresistivity ratio is maintained. In a magnetoresistive head equipped with, as a magnetic sensor element for detecting magnetic signals while in contact with a magnetic recording medium, a spin-valve film, which has a structure where an anti-ferromagnetic layer, a pinned layer in which the direction of magnetization is pinned in a predetermined direction by an exchange-coupling magnetic field at work between itself and the anti-ferromagnetic layer, a free layer in which the direction of magnetization changes in accordance with an external magnetic field, and a non-magnetic layer for magnetically isolating the pinned layer and the free layer are layered, the corrosion potential of the spin-valve film relative to a standard hydrogen electrode measured while immersed in a NaCl solution of a concentration of 0.1 mol/L is specified at +0.4 [V vs. SHE] or above.

    摘要翻译： 旨在提高磁阻磁头的耐腐蚀性，并保持高的磁阻率。 在具有用于在与磁记录介质接触时检测磁信号的磁传感器元件的磁阻头中，具有反铁磁层的结构的自旋阀膜，其中， 通过在其自身和反铁磁层之间的工作时的交换耦合磁场，磁化方向根据外部磁场而变化的自由层，以及非磁性层，将磁化固定在预定方向上 磁性隔离被钉扎层和自由层被层叠，当浸渍在浓度为0.1mol / L的NaCl溶液中时，自旋阀膜相对于标准氢电极的腐蚀电位在+0.4 [V vs SHE]以上。