公开(公告)号：US08411384B2

公开(公告)日：2013-04-02

申请号：US13154343

申请日：2011-06-06

申请人： Masafumi Mochizuki ,  Ichiro Yokokawa ,  Satoshi Ohki

发明人： Masafumi Mochizuki ,  Ichiro Yokokawa ,  Satoshi Ohki

IPC分类号： G11B27/36 ,  G11B5/33 ,  G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： In one embodiment, a data storage system includes a magnetic head having a main magnetic pole and a wrap around shield positioned around the main magnetic pole at an ABS thereof, a magnetic medium, a drive mechanism for passing the magnetic medium over the magnetic head, and a controlling mechanism electrically coupled to the magnetic head for controlling operation of the magnetic head that initiates rewriting of information of a recording track of the magnetic medium if a recording magnetic field applied to the recording track exceeds a threshold. In another embodiment, a method includes writing data to a first track of a magnetic medium using a magnetic head, determining characteristics consistent with data degradation from tracks adjacent to the first track and far tracks away from the first track using a controlling mechanism, and rewriting data in tracks determined to be degraded due to ATI and/or FTI.

摘要翻译： 在一个实施例中，数据存储系统包括具有主磁极的磁头和围绕主体磁极定位在其ABS处的绕环屏蔽件，磁介质，用于使磁介质穿过磁头的驱动机构， 以及电磁耦合到磁头的控制机构，用于控制磁头的操作，如果施加到记录磁道的记录磁场超过阈值，则启动重写磁介质的记录磁道的信息。 在另一个实施例中，一种方法包括使用磁头将数据写入磁介质的第一轨道，使用控制机构确定与第一轨道相邻的轨道的数据退化与远离第一轨迹的轨迹的特性，以及重写 确定由于ATI和/或FTI而降级的轨道中的数据。

公开(公告)号：US20080192379A1

公开(公告)日：2008-08-14

申请号：US12011284

申请日：2008-01-24

申请人： Masayuki Kurita ,  Hideaki Tanaka ,  Noriaki Satoh ,  Toyomi Ohsawa ,  Toshiya Shiramatsu ,  Atsushi Yatagai ,  Satoshi Ohki ,  Hiroshi Ide ,  Hidekazu Kohira ,  Takehiko Hamaguchi

发明人： Masayuki Kurita ,  Hideaki Tanaka ,  Noriaki Satoh ,  Toyomi Ohsawa ,  Toshiya Shiramatsu ,  Atsushi Yatagai ,  Satoshi Ohki ,  Hiroshi Ide ,  Hidekazu Kohira ,  Takehiko Hamaguchi

IPC分类号： G11B5/48 ,  G11B5/56 ,  G11B5/60 ,  G11B21/21 ,  G01R31/01

CPC分类号： G11B5/455 ,  G11B5/3133 ,  G11B5/6029 ,  G11B5/607 ,  G11B5/6076 ,  Y10T29/49004

摘要： Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.

摘要翻译： 本发明的实施例提供了一种监视磁回放信号的过程，同时逐渐增加用于加热器的电力供应量，从而确定磁头滑块和磁盘介质之间的接触。 根据一个实施例，在用于配置磁记录/重放部分的组件被组装到外壳中之后，通过使用回放元件在磁盘介质的特定轨道上回放磁信息，同时逐渐增加加热器的供电量 的磁头滑块。 沿着轨道的圆周方向的多个部分测量重放信号的幅度。 根据测量幅度的变化的增加来检测磁头滑块和磁盘介质之间的接触。 然后，通过从检测到接触的电量的电量中减去电量的预定值而获得的值作为用于磁头滑块的适当电量被存储（设置）到存储部分中。

公开(公告)号：US20080186629A1

公开(公告)日：2008-08-07

申请号：US12009215

申请日：2008-01-16

申请人： Takehiko Hamaguchi ,  Yukiya Shimizu ,  Satoshi Ohki ,  Hideaki Maeda

发明人： Takehiko Hamaguchi ,  Yukiya Shimizu ,  Satoshi Ohki ,  Hideaki Maeda

IPC分类号： G11B5/33

CPC分类号： G11B5/59633 ,  G11B5/59666

摘要： Embodiments of the present invention provide a method of producing a magnetic disk device in which a plurality of heads can appropriately record servo data on a magnetic disk. The method of producing the magnetic disk device according to one embodiment includes the steps of: attaching a magnetic disk, a plurality of heads and head amplifier circuit to the magnetic disk device; and recording the servo data input through the head amplifier circuit with the plurality of heads on the magnetic disk all at once; wherein the head amplifier circuit includes a plurality of amplifiers provided corresponding to the plurality of heads respectively and a plurality of registers which is provided corresponding to the plurality of amplifiers respectively and holds set values determining the amplification of the amplifiers, and the step of recording the servo data is conducted with the plurality of registers included in the head amplifier circuit individually set.

摘要翻译： 本发明的实施例提供一种制造磁盘装置的方法，其中多个磁头可以将伺服数据适当地记录在磁盘上。 根据一个实施例的制造磁盘装置的方法包括以下步骤：将磁盘，多个磁头和磁头放大器电路连接到磁盘装置; 并且通过头放大器电路输入的伺服数据与多个磁头一起记录在磁盘上; 其中所述头放大器电路包括分别与所述多个磁头相对应地设置的多个放大器和分别对应于所述多个放大器设置的多个寄存器，并且保持确定放大器的放大的设定值，以及记录 伺服数据与包括在头放大器电路中的多个寄存器分别设置一起进行。

公开(公告)号：US5304544A

公开(公告)日：1994-04-19

申请号：US862335

申请日：1992-04-02

申请人： Satoshi Ohki ,  Tsuneya Ohno ,  Masaki Terada

发明人： Satoshi Ohki ,  Tsuneya Ohno ,  Masaki Terada

IPC分类号： A01N43/16 ,  A61K31/70 ,  A01N3/02 ,  A61K35/78

CPC分类号： A01N43/16

摘要： Disclosed are compositions comprising caramel that have anti-plant pathogen activity. Methods of treatment of higher plants with the compositions to inhibit both the infection of plants by pathogens and the multiplication of pathogens in infected plants are also provided. Compositions according to the present invention are particularly suited for use against plant viruses such as cucumber mosaic virus.

摘要翻译： 公开了包含具有抗植物病原体活性的焦糖的组合物。 还提供了具有抑制病原体感染植物和感染植物中病原体繁殖的组合物的高等植物的处理方法。 根据本发明的组合物特别适用于抗植物病毒如黄瓜花叶病毒。

公开(公告)号：US20120307394A1

公开(公告)日：2012-12-06

申请号：US13154343

申请日：2011-06-06

申请人： Masafumi Mochizuki ,  Ichiro Yokokawa ,  Satoshi Ohki

发明人： Masafumi Mochizuki ,  Ichiro Yokokawa ,  Satoshi Ohki

IPC分类号： G11B5/02

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： In one embodiment, a data storage system includes a magnetic head having a main magnetic pole and a wrap around shield positioned around the main magnetic pole at an ABS thereof, a magnetic medium, a drive mechanism for passing the magnetic medium over the magnetic head, and a controlling mechanism electrically coupled to the magnetic head for controlling operation of the magnetic head that initiates rewriting of information of a recording track of the magnetic medium if a recording magnetic field applied to the recording track exceeds a threshold. In another embodiment, a method includes writing data to a first track of a magnetic medium using a magnetic head, determining characteristics consistent with data degradation from tracks adjacent to the first track and far tracks away from the first track using a controlling mechanism, and rewriting data in tracks determined to be degraded due to ATI and/or FTI.

摘要翻译： 在一个实施例中，数据存储系统包括具有主磁极的磁头和围绕主体磁极定位在其ABS处的绕环屏蔽件，磁介质，用于使磁介质穿过磁头的驱动机构， 以及电磁耦合到磁头的控制机构，用于控制磁头的操作，如果施加到记录磁道的记录磁场超过阈值，则启动重写磁介质的记录磁道的信息。 在另一个实施例中，一种方法包括使用磁头将数据写入磁介质的第一轨道，使用控制机构确定与第一轨道相邻的轨道的数据退化与远离第一轨迹的轨迹的特性，以及重写 确定由于ATI和/或FTI而降级的轨道中的数据。

公开(公告)号：US20080204924A1

公开(公告)日：2008-08-28

申请号：US12072001

申请日：2008-02-21

申请人： Jun Ohno ,  Atsushi Yatagai ,  Satoshi Ohki ,  Hiroshi Ide

发明人： Jun Ohno ,  Atsushi Yatagai ,  Satoshi Ohki ,  Hiroshi Ide

IPC分类号： G11B21/02

CPC分类号： G11B5/6029 ,  G11B5/607 ,  G11B5/6076

摘要： Embodiments of the present invention help to compute controlling quantity to make the spacing between a floating head slider and a recording medium optimum without damaging the floating head slider and the recording medium by detecting the floating head slider's contact with the recording medium with high sensitivity. According to one embodiment, when the floating head slider is floating over the magnetic disk, a controller takes samples of a notable characteristic value (amplitude) from signals reproduced by a reproducing head, retains the variation of the sample amplitude as a reference signal, takes samples of amplitude from signals reproduced by the reproducing head while reducing the spacing between the floating head slider and the magnetic disk gradually, produces a signal which is the sample signal from which the reference signal is subtracted, detects the floating head slider's contact with the magnetic disk when the fluctuation of the signal so produced exceeds a reference value and, on the basis of a fly-height-control mechanism's controlling quantity at the time of the contact, computes the controlling quantity for making the spacing between the floating head slider and the magnetic disk optimum.

摘要翻译： 本发明的实施例有助于通过以高灵敏度检测浮动磁头滑块与记录介质的接触来计算控制量以使浮动磁头滑块和记录介质之间的间隔最佳而不损坏浮动磁头滑块和记录介质。 根据一个实施例，当浮动磁头滑动器浮动在磁盘上时，控制器从由再现磁头再现的信号中获取显着的特征值（振幅）的采样，保持采样振幅的变化作为参考信号， 逐渐减小浮动磁头滑块和磁盘之间的间隔，产生一个信号，该信号是从其中减去参考信号的采样信号，检测浮动磁头滑块与磁铁的接触。 当这样产生的信号的波动超过参考值时，并且基于飞行高度控制机构在接触时的控制量，计算用于使浮动滑块滑块和 磁盘最佳。