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1. 发明授权

US08373940B2 Magnetic head having a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer 有权
标题翻译：具有用于产生电磁场并向磁记录层施加能量的面对电极对的磁头
公开(公告)号：US08373940B2
公开(公告)日：2013-02-12
申请号：US12547964
申请日：2009-08-26
申请人： Yohji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
发明人： Yohji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/1278 , G11B5/314 , G11B2005/001
摘要： According to one embodiment, a magnetic head for recording magnetic data by changing the magnetization direction of a magnetic recording layer of a magnetic medium comprises a magnetic pole for generating a magnetic field to change the magnetization direction of the magnetic recording layer, and a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer to assist the change of the magnetization direction of the magnetic recording layer caused by the magnetic field from the magnetic pole. Other embodiments are also presented.
摘要翻译：根据一个实施例，用于通过改变磁介质的磁记录层的磁化方向来记录磁数据的磁头包括用于产生磁场以改变磁记录层的磁化方向的磁极和面对电极用于产生电磁场并向磁记录层施加能量以帮助由磁极引起的磁场引起的磁记录层的磁化方向的改变。还提出了其他实施例。

2. 发明授权

US08248732B2 Head-gimbal assembly including a transmission-line structure for high-density magnetic recording 有权
标题翻译：头万向节组件，包括用于高密度磁记录的传输线结构
公开(公告)号：US08248732B2
公开(公告)日：2012-08-21
申请号：US12564885
申请日：2009-09-22
申请人： Nobumasa Nishiyama , Yohji Maruyama
发明人： Nobumasa Nishiyama , Yohji Maruyama
IPC分类号： G11B5/48 , G11B21/16
CPC分类号： G11B5/486
摘要： A head-gimbal assembly. The head-gimbal assembly includes a suspension, a head-slider coupled to the suspension, a magnetic-recording assistance element on the head-slider for applying an electromagnetic wave to a magnetic-recording disk, and a transmission line on the suspension for transmitting signals to the magnetic-recording assistance element. The transmission line includes an electrically conductive line for transmitting the signals, an upper shield placed above the electrically conductive line along the electrically conductive line, a lower shield placed below the electrically conductive line along the electrically conductive line, and a plurality of columns arranged at each of a right side and a left side of the electrically conductive line along the electrically conductive line for connecting the upper shield and the lower shield. The plurality of columns arranged at the right and left sides includes, respectively, a right linear array of columns and a left linear array of columns.
摘要翻译：一个万向节头组件。头部万向节组件包括悬架，连接到悬架的头部滑块，用于向磁记录盘施加电磁波的磁头滑块上的磁记录辅助元件，以及用于传输的悬架上的传输线信号到磁记录辅助元件。传输线包括用于传输信号的导电线，沿着导电线放置在导电线之上的上屏蔽，沿着导电线放置在导电线下方的下屏蔽，以及布置在沿着导电线的导电线的右侧和左侧的每一个，用于连接上屏蔽和下屏蔽。布置在左侧和左侧的多个列分别包括列的右线性阵列和列的左线性阵列。

3. 发明申请

US20100053812A1 MAGNETIC HEAD FOR RECORDING MAGNETIC DATA BY CHANGING THE MAGNETIZATION DIRECTION OF A MAGNETIC RECORDING LAYER OF A MAGNETIC MEDIUM 有权
标题翻译：用于通过改变磁介质的磁记录层的磁化方向来记录磁数据的磁头
公开(公告)号：US20100053812A1
公开(公告)日：2010-03-04
申请号：US12547964
申请日：2009-08-26
申请人： Yoji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
发明人： Yoji Maruyama , Nobumasa Nishiyama , Masafumi Mochizuki
IPC分类号： G11B5/187
CPC分类号： G11B5/1278 , G11B5/314 , G11B2005/001
摘要： According to one embodiment, a magnetic head for recording magnetic data by changing the magnetization direction of a magnetic recording layer of a magnetic medium comprises a magnetic pole for generating a magnetic field to change the magnetization direction of the magnetic recording layer, and a facing electrode pair for generating an electromagnetic field and applying energy to the magnetic recording layer to assist the change of the magnetization direction of the magnetic recording layer caused by the magnetic field from the magnetic pole. Other embodiments are also presented.
摘要翻译：根据一个实施例，用于通过改变磁介质的磁记录层的磁化方向来记录磁数据的磁头包括用于产生磁场以改变磁记录层的磁化方向的磁极和面对电极用于产生电磁场并向磁记录层施加能量以帮助由磁极引起的磁场引起的磁记录层的磁化方向的改变。还提出了其他实施例。

4. 发明授权

US08310789B2 Conductor suspension structure and electrical connection assembly for transmitting complementary signals in a hard disk drive 有权
标题翻译：导体悬挂结构和电气连接组件，用于在硬盘驱动器中传输互补信号
公开(公告)号：US08310789B2
公开(公告)日：2012-11-13
申请号：US12645217
申请日：2009-12-22
申请人： John T. Contreras , Nobumasa Nishiyama , Xinzhi Xing
发明人： John T. Contreras , Nobumasa Nishiyama , Xinzhi Xing
IPC分类号： G11B5/55
CPC分类号： G11B5/486 , G11B5/484
摘要： An integrated conductor/suspension structure for supporting and electrically connecting a write/read head in a hard disk drive and methods of making the conductor/suspension structure are provided. The integrated conductor/suspension structure may allow for an increased characteristic-impedance range, greater interference shielding and a reduction of signal loss that is contributed by a lossy conductive substrate. The suspension structure includes apertures formed therein that result in a reduction in the lossy material and its effect on the electrical signals. In addition, the conductor/suspension structure of the present invention provides shielding to reduce the interference from external electric fields.
摘要翻译：提供了用于支持和电连接硬盘驱动器中的写/读头的集成导体/悬挂结构以及制造导体/悬架结构的方法。集成导体/悬置结构可以允许增加的特性阻抗范围，更大的干扰屏蔽和由有损导电基底所贡献的信号损失的降低。悬挂结构包括形成在其中的孔，其导致有损材料的减少及其对电信号的影响。此外，本发明的导体/悬架结构提供屏蔽以减少来自外部电场的干扰。

5. 发明申请

US20110149442A1 CONDUCTOR SUSPENSION STRUCTURE FOR HARD DISK DRIVES 有权
标题翻译：硬盘驱动器的导体悬架结构
公开(公告)号：US20110149442A1
公开(公告)日：2011-06-23
申请号：US12645217
申请日：2009-12-22
申请人： JOHN T. CONTRERAS , Nobumasa Nishiyama , Xinzhi Xing
发明人： JOHN T. CONTRERAS , Nobumasa Nishiyama , Xinzhi Xing
IPC分类号： G11B21/16 , H01R43/00 , B05D5/12
CPC分类号： G11B5/486 , G11B5/484
摘要： An integrated conductor/suspension structure for supporting and electrically connecting a write/read head in a hard disk drive and methods of making the conductor/suspension structure are provided. The integrated conductor/suspension structure may allow for an increased characteristic-impedance range, greater interference shielding and a reduction of signal loss that is contributed by a lossy conductive substrate. The suspension structure includes apertures formed therein that result in a reduction in the lossy material and its effect on the electrical signals. In addition, the conductor/suspension structure of the present invention provides shielding to reduce the interference from external electric fields.
摘要翻译：提供了用于支持和电连接硬盘驱动器中的写/读头的集成导体/悬挂结构以及制造导体/悬架结构的方法。集成导体/悬置结构可以允许增加的特性阻抗范围，更大的干扰屏蔽和由有损导电基底所贡献的信号损失的降低。悬挂结构包括形成在其中的孔，其导致有损材料的减少及其对电信号的影响。此外，本发明的导体/悬架结构提供屏蔽以减少来自外部电场的干扰。

6. 发明授权

US07684153B2 Magnetic head slider with ground and heater terminal arrangement and magnetic head assembly 失效
标题翻译：磁头滑块，带有接地和加热器端子排列和磁头组件
公开(公告)号：US07684153B2
公开(公告)日：2010-03-23
申请号：US11439687
申请日：2006-05-23
申请人： Takayoshi Ohtsu , Nobumasa Nishiyama
发明人： Takayoshi Ohtsu , Nobumasa Nishiyama
IPC分类号： G11B5/48 , G11B5/33
CPC分类号： G11B5/486 , G11B5/314 , G11B5/6005 , G11B5/607
摘要： Crosstalk from a write signal on wiring on a suspension needs to be reduced since an ESD withstand voltage is decreased due to high sensitivity of a GMR head. In one embodiment, a terminal arrangement on an element-forming surface of a magnetic head slider consists of a ground terminal G, a read terminal R+, a read terminal R−, a write terminal W+ and a write terminal W− in order from the outside. With this terminal arrangement, the wiring order on a suspension consists of a read wire R−, a read wire R+, a ground line G, a write wire W− and a write wire W+ in an arrangement unlike the terminal arrangement. In other words, the ground line G is interposed between the write wires W and the read wires R. In this way, the wiring of the write wire W and the wiring of the read wire R are never arranged adjacently to each other, and further, the ground line G is interposed between the write wires W and the read wires R, thereby reducing crosstalk on the read wires R caused by a writing current with a high frequency which flows in the write wires W.
摘要翻译：由于GMR磁头的高灵敏度，ESD耐受电压降低，所以需要降低悬架上布线上写信号的串扰。在一个实施例中，磁头滑块的元件形成表面上的端子装置由接地端子G，读取端子R +，读取端子R-，写入端子W +和写入端子W-按照从外。利用该端子装置，与终端装置不同，在悬架上的接线顺序由读线R，读线R +，接地线G，写线W-和写线W +组成。换句话说，接地线G被插入在写入线W和读取导线R之间。这样，写入线W和读取的线R的布线的布线将不会彼此相邻布置，并且进一步接地线G被插入在写入线W和读出导线R之间，从而减少由写入线W中流动的高频写入电流引起的读取线R上的串扰。

7. 发明申请

US20080151432A1 High frequency interconnect signal transmission lines 有权
标题翻译：高频互连信号传输线
公开(公告)号：US20080151432A1
公开(公告)日：2008-06-26
申请号：US11643269
申请日：2006-12-20
申请人： Toshiki Hirano , Nobumasa Nishiyama , Haruhide Takahashi
发明人： Toshiki Hirano , Nobumasa Nishiyama , Haruhide Takahashi
IPC分类号： G11B5/48
CPC分类号： G11B5/4853 , G11B5/5552
摘要： A micro-electromechanical signal transmission line is made from an electrically conductive material. It has a first distal end and a second distal end. The second distal end is free to move with respect to said first distal end. There exists an unsupported region between the first distal end and the second distal end. The unsupported region is juxtaposed at a controlled distance from at least one grounded conductive surface.
摘要翻译：微机电信号传输线由导电材料制成。它具有第一远端和第二远端。第二远端相对于所述第一远端自由移动。在第一远端和第二远端之间存在无支撑区域。未受支撑的区域与至少一个接地的导电表面在可控的距离处并置。

8. 发明申请

US20060268459A1 Magnetic head slider with terminal arrangement and magnetic head assembly 失效
标题翻译：磁头滑块，带端子排列和磁头组件
公开(公告)号：US20060268459A1
公开(公告)日：2006-11-30
申请号：US11439687
申请日：2006-05-23
申请人： Takayoshi Ohtsu , Nobumasa Nishiyama
发明人： Takayoshi Ohtsu , Nobumasa Nishiyama
IPC分类号： G11B5/60
CPC分类号： G11B5/486 , G11B5/314 , G11B5/6005 , G11B5/607
摘要： Crosstalk from a write signal on wiring on a suspension needs to be reduced since an ESD withstand voltage is decreased due to high sensitivity of a GMR head. In one embodiment, a terminal arrangement on an element-forming surface of a magnetic head slider consists of a ground terminal G, a read terminal R+, a read terminal R−, a write terminal W+ and a write terminal W− in order from the outside. With this terminal arrangement, the wiring order on a suspension consists of a read wire R−, a read wire R+, a ground line G, a write wire W− and a write wire W+ in an arrangement unlike the terminal arrangement. In other words, the ground line G is interposed between the write wires W and the read wires R. In this way, the wiring of the write wire W and the wiring of the read wire R are never arranged adjacently to each other, and further, the ground line G is interposed between the write wires W and the read wires R, thereby reducing crosstalk on the read wires R caused by a writing current with a high frequency which flows in the write wires W.
摘要翻译：由于GMR磁头的高灵敏度，ESD耐受电压降低，所以需要降低悬架上布线上写信号的串扰。在一个实施例中，磁头滑块的元件形成表面上的端子装置由接地端子G，读取端子R +，读取端子R-，写入端子W +和写入端子W-按照从外。利用该端子装置，与终端装置不同，在悬架上的接线顺序由读线R，读线R +，接地线G，写线W-和写线W +组成。换句话说，地线G插入在写入线W和读取导线R之间。这样，写入线W和读取的线R的布线的布线将不会彼此相邻布置，并且进一步接地线G被插入在写入线W和读出导线R之间，从而减少由写入线W中流动的高频写入电流引起的读取线R上的串扰。

9. 发明授权

US6014275A Magnetic recording drive 失效
标题翻译：磁记录驱动
公开(公告)号：US6014275A
公开(公告)日：2000-01-11
申请号：US701705
申请日：1996-08-22
申请人： Hajime Aoi , Toshiaki Tsuyoshi , Makoto Koizumi , Nobumasa Nishiyama , Yoshibumi Matsuda , Takuji Ogawa , Kazuhisa Shiraishi
发明人： Hajime Aoi , Toshiaki Tsuyoshi , Makoto Koizumi , Nobumasa Nishiyama , Yoshibumi Matsuda , Takuji Ogawa , Kazuhisa Shiraishi
IPC分类号： G11B5/02 , G11B5/00 , G11B5/012 , G11B5/09 , G11B5/39 , G11B5/40 , G11B5/55 , G11B5/596 , G11B19/02 , G11B19/04 , G11B27/30 , G11B27/36 , G11B5/03
CPC分类号： G11B19/04 , G11B19/02 , G11B27/3027 , G11B27/36 , G11B5/00 , G11B5/012 , G11B5/40 , G11B5/5547 , G11B2005/0016 , G11B2005/0018 , G11B5/59683
摘要： In a magnetic recording drive having a plurality of magnetic heads each employing a magnetoresistive sensor for the purpose of averaging the time required for sense currents to be caused to flow through the respective magnetoresistive sensors to shorten the longest reproducing time and to suppress the degradation of the characteristics due to the electromigration, thereby improving the reliability of the magnetic recording drive, the magnetic recording drive includes circuits for averaging the useful life depending on the currents caused to flow through the respective magnetoresistive sensors among the plurality of magnetic heads, whereby the time required for the sense current to be caused to flow through one MR reproducing head is greatly shortened. Therefore, the levels of outputs of the MR reproducing heads can be increased without reduction of the reliability and thus the reliability of the magnetic recording drive can be improved.
摘要翻译：在具有多个磁头的磁记录驱动器中，每个磁头采用磁阻传感器，用于平均要使感应电流流过各磁阻传感器所需的时间，以缩短最长再现时间并抑制由于电迁移的特性，从而提高了磁记录驱动器的可靠性，磁记录驱动器包括用于根据流过多个磁头中的相应磁阻传感器的电流来平均使用寿命的电路，由此所需的时间使得通过一个MR再现头流动的感测电流大大缩短。因此，可以在不降低可靠性的情况下增加MR再现头的输出电平，从而可以提高磁记录驱动器的可靠性。

10. 发明授权

US5307213A Data reproducing apparatus for eliminating undershoots in the vicinity of the outer edges of a magnetic pole 失效
标题翻译：用于消除磁极外边缘附近的下冲的数据再现装置
公开(公告)号：US5307213A
公开(公告)日：1994-04-26
申请号：US798944
申请日：1991-11-27
申请人： Nobumasa Nishiyama
发明人： Nobumasa Nishiyama
IPC分类号： G11B5/035 , G11B5/09 , G11B20/10 , G11B5/02
CPC分类号： G11B20/10046 , G11B20/10009 , G11B5/035 , G11B5/09
摘要： A system which records and reproduces a digital signal in the form of a magnetic reversal on and from a recording medium includes a magnetic head for reproducing data recorded on the recording medium; an automatic gain control unit for controlling the reproduced signal so as to have a constant amplitude; an equalizer for processing the output waveform from the automatic gain control unit; a differentiator for changing the output from the equalizer to a differentiated waveform; a low pass filter for limiting the signal band of the differentiated waveform; a low pass filter for limiting the signal band of the equalizer output; a pulser for receiving the equalizer output, the band of which is limited by the low pass filter and the differentiated waveform, the band of which is limited; a differentiator for receiving the output from the automatic gain control unit and producing a differentiated signal from the output signal; an attenuator for attenuating the differentiator output; and a waveform processor for adding the attenuated differentiated signal to the band-limited differentiated waveform and inputting the resulting signal to the pulser.
摘要翻译：在记录介质上记录和再现磁反转形式的数字信号的系统包括用于再现记录在记录介质上的数据的磁头; 自动增益控制单元，用于控制再现信号以具有恒定的振幅; 用于处理来自自动增益控制单元的输出波形的均衡器; 用于将均衡器的输出改变为微分波形的微分器; 用于限制微分波形的信号频带的低通滤波器; 用于限制均衡器输出的信号频带的低通滤波器; 用于接收均衡器输出的脉冲发生器，其频带受限于低通滤波器和有限波段的微分波形; 微分器，用于接收来自自动增益控制单元的输出并从输出信号产生微分信号; 用于衰减微分器输出的衰减器; 以及波形处理器，用于将衰减的微分信号加到带限微分波形，并将得到的信号输入到脉冲发生器。

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