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21. 发明申请

US20110025321A1 MAGNETIC SENSOR 有权
标题翻译：磁传感器
公开(公告)号：US20110025321A1
公开(公告)日：2011-02-03
申请号：US12844091
申请日：2010-07-27
申请人： Hiroshi YAMAZAKI , Hiraku HIRABAYASHI , Naoki OHTA
发明人： Hiroshi YAMAZAKI , Hiraku HIRABAYASHI , Naoki OHTA
IPC分类号： G01R33/02
CPC分类号： G01R33/091 , G01D5/145
摘要： A magnetic sensor includes first to fourth MR elements. The first and second MR elements are connected at respective ends thereof through a first connecting portion in a central region. The third and fourth MR elements are connected at respective ends thereof through a second connecting portion that crosses the first connecting portion with a distance in a thickness direction in the central region. The first and fourth MR elements are connected at respective other ends thereof through a third connecting portion, and the second and third MR elements are connected at respective other ends thereof through a fourth connecting portion. Resistance values of the first and third MR elements change in a same increasing/decreasing direction, whereas resistance values of the second and fourth MR elements change in an increasing/decreasing direction opposite to the first and third MR elements, depending on an external signal magnetic field.
摘要翻译：磁传感器包括第一至第四MR元件。第一和第二MR元件通过中心区域中的第一连接部分在其相应端部连接。第三和第四MR元件通过第二连接部分在其相应端部处连接，第二连接部分在中心区域中沿厚度方向的距离与第一连接部分交叉。第一和第四MR元件通过第三连接部在其各自的另一端连接，第二和第三MR元件通过第四连接部在其各自的另一端连接。第一和第三MR元件的电阻值以相同的增加/减小方向变化，而第二和第四MR元件的电阻值随着与第一和第三MR元件相反的增加/减小方向而变化，这取决于外部信号磁领域。

22. 发明申请

US20100061023A1 MAGNETIC HEAD DEVICE AND MAGNETIC DISK DRIVE APPARATUS WITH THE MAGNETIC HEAD DEVICE 审中-公开
标题翻译：磁头设备和磁性磁盘驱动装置与磁头设备
公开(公告)号：US20100061023A1
公开(公告)日：2010-03-11
申请号：US12208828
申请日：2008-09-11
申请人： Naoki OHTA , Kei HIRATA
发明人： Naoki OHTA , Kei HIRATA
IPC分类号： G11B5/127
CPC分类号： G11B5/3903 , B82Y10/00 , B82Y25/00 , G01R33/098 , G11B5/3909 , G11B5/398
摘要： A magnetic head device includes a magnetic head section having a first free layer with a magnetization orientation that is not previously defined but changes depending upon only external magnetic field applied, a second free layer with a magnetization orientation that is not previously defined but changes depending upon only external magnetic field applied, a nonmagnetic intermediate layer sandwiched between the first free layer and the second free layer, a first electrode layer stacked on a surface of the first free layer opposite to the nonmagnetic intermediate layer, and a second electrode layer stacked on a surface of the second free layer opposite to the nonmagnetic intermediate layer; a sense-current supply means for flowing a sense current across the first electrode layer and the second electrode layer of the magnetic head section; and a frequency divider circuit for dividing by two a frequency of an output signal produced across the first electrode layer and the second electrode layer of the magnetic head section.
摘要翻译：磁头装置包括具有磁化取向的第一自由层的磁头部分，磁化取向不是预先限定的，而是仅根据所施加的外部磁场而改变，具有磁化取向的第二自由层未被预先限定，但是根据仅施加外部磁场，夹在第一自由层和第二自由层之间的非磁性中间层，堆叠在与非磁性中间层相对的第一自由层的表面上的第一电极层和层叠在第一自由层上的第二电极层第二自由层的表面与非磁性中间层相对; 感测电流供给装置，用于使检测电流流过磁头部分的第一电极层和第二电极层; 以及分频电路，用于除以在磁头部分的第一电极层和第二电极层两端产生的输出信号的两个频率。

23. 发明申请

US20070103815A1 MAGNETIC HEAD ASSEMBLY, MAGNETIC HEAD DRIVE APPARATUS AND MANUFACTURING METHOD OF MAGNETIC HEAD ASSEMBLY 失效
标题翻译：磁头组件，磁头驱动装置及磁头组件的制造方法
公开(公告)号：US20070103815A1
公开(公告)日：2007-05-10
申请号：US11469091
申请日：2006-08-31
申请人： Naoki OHTA , Nozomu Hachisuka
发明人： Naoki OHTA , Nozomu Hachisuka
IPC分类号： G11B5/60 , G11B5/48
CPC分类号： G11B5/4826 , G11B5/3906
摘要： A magnetic head assembly includes a magnetic head slider with an element-formed surface on which at least one MR read head element is formed, an ABS to be opposed in operation to a magnetic recording medium and a fixing surface that is the other side of the ABS, and a support for supporting the magnetic head slider. The fixing surface of the magnetic head slider is fixed to the support by at least cure-shrinkage resin material layer providing a contractive force when cured. The cure-shrinkage resin material layer has at least one strip-shaped pattern running along a track width direction.
摘要翻译：磁头组件包括具有元件形成表面的磁头滑动器，在其上形成至少一个MR读取头元件，在操作中与磁记录介质相对的ABS和作为磁记录介质的另一侧的固定表面 ABS和用于支撑磁头滑块的支撑。磁头滑块的固定表面至少在固化时提供收缩力的固化收缩树脂材料层固定在支撑体上。固化收缩树脂材料层具有沿着轨道宽度方向延伸的至少一个条状图案。

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