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88 条记录 (耗时 0.027 秒)

    Magnetic storage apparatus
    41.
    发明授权
    Magnetic storage apparatus 有权
    磁存储装置

    公开(公告)号：US06297929B1

    公开(公告)日：2001-10-02

    申请号：US09557002

    申请日：2000-04-20

    申请人： Hisashi Takano ,  Masahiro Kitada ,  Mikio Suzuki

    发明人： Hisashi Takano ,  Masahiro Kitada ,  Mikio Suzuki

    IPC分类号： G11B5127

    CPC分类号： G11B5/31 ,  G11B5/012 ,  G11B5/09 ,  G11B5/1272 ,  G11B5/17 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/39 ,  G11B5/3967

    摘要： The proposed magnetic storage apparatus has the following features. The frequency at which data is recorded is selected to be 45 MHz. The thickness, resistivity and relative permeability of the magnetic film of which the magnetic poles of the magnetic head used in the apparatus are made are designed considering the eddy current loss. Also, the relation of &mgr;d2/&rgr;≦500 is satisfied where d (&mgr;m) is the thickness of the magnetic film of which the magnetic poles of the magnetic head are made, &rgr;(&mgr;&OHgr;-cm) is the resistivity, and &mgr;is the relative permeability in a low-frequency range. Under these conditions, the amount of attenuation of recording magnetic field is reduced to 10% or below, and problems of writing blur and overwrite value variation which occur as the recording frequency changes can be solved. Moreover, the media data rate is 15 megabytes per sec., and the areal data-recording density is 500 megabits per square inch or more.

    摘要翻译： 所提出的磁存储装置具有以下特征。 记录数据的频率选择为45 MHz。 考虑到涡电流损耗，设计制造设备中使用的磁头的磁极的磁性膜的厚度，电阻率和相对磁导率。 此外，在d（mum）是制造磁头的磁极的磁性膜的厚度，rho（μOMEGA-cm）是电阻率的情况下，满足mud2 / rho <= 500的关系，并且mu 在低频范围内的相对磁导率。 在这些条件下，记录磁场的衰减量降低到10％以下，可以解决写入模糊和记录频率变化时的覆盖值变化的问题。 此外，媒体数据速率为每秒15兆字节，而面积数据记录密度为500兆比特每平方英寸或更多。

    Magnetic storage apparatus
    43.
    发明授权
    Magnetic storage apparatus 失效
    磁存储装置

    公开(公告)号：US6064546A

    公开(公告)日：2000-05-16

    申请号：US3506

    申请日：1998-01-06

    申请人： Hisashi Takano ,  Masahiro Kitada ,  Mikio Suzuki

    发明人： Hisashi Takano ,  Masahiro Kitada ,  Mikio Suzuki

    IPC分类号： G11B5/012 ,  G11B5/02 ,  G11B5/09 ,  G11B5/127 ,  G11B5/17 ,  G11B5/31 ,  G11B5/39 ,  G11B5/23

    CPC分类号： G11B5/31 ,  G11B5/012 ,  G11B5/09 ,  G11B5/1272 ,  G11B5/17 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/39 ,  G11B5/3967

    摘要： The proposed magnetic storage apparatus has the following features. The frequency at which data is recorded is selected to be 45 MHz. The thickness, resistivity and relative permeability of the magnetic film of which the magnetic poles of the magnetic head used in the apparatus are made are designed considering the eddy current loss. Also, the relation of .mu.d.sup.2 /.rho..ltoreq.500 is satisfied where d (.mu.m) is the thickness of the magnetic film of which the magnetic poles of the magnetic head are made, .rho. (.mu..OMEGA.-cm) is the resistivity, and .mu. is the relative permeability in a low-frequency range. Under these conditions, the amount of attenuation of recording magnetic field is reduced to 10% or below, and problems of writing blur and overwrite value variation which occur as the recording frequency changes can be solved. Moreover, the media data rate is 15 megabytes per sec., and the areal data-recording density is 500 megabits per square inch or more.

    摘要翻译： 所提出的磁存储装置具有以下特征。 记录数据的频率选择为45 MHz。 考虑到涡电流损耗，设计制造设备中使用的磁头的磁极的磁性膜的厚度，电阻率和相对磁导率。 此外，满足μd2 / rho <500的关系，其中d（μm）是制造磁头的磁极的磁膜的厚度，rho（mu OMEGA-cm）是电阻率 ，mu是低频范围内的相对磁导率。 在这些条件下，记录磁场的衰减量降低到10％以下，可以解决写入模糊和记录频率变化时的覆盖值变化的问题。 此外，媒体数据速率为每秒15兆字节，而面积数据记录密度为500兆比特每平方英寸或更多。

    Magnetic hard disk drive
    45.
    发明授权
    Magnetic hard disk drive 失效
    磁性硬盘驱动器

    公开(公告)号：US07184236B2

    公开(公告)日：2007-02-27

    申请号：US10944845

    申请日：2004-09-21

    申请人： Takehiko Hamaguchi ,  Kyo Akagi ,  Hisashi Takano ,  Takayuki Ichihara

    发明人： Takehiko Hamaguchi ,  Kyo Akagi ,  Hisashi Takano ,  Takayuki Ichihara

    IPC分类号： G11B15/04 ,  G11B19/04

    CPC分类号： G11B20/1252 ,  G11B5/012 ,  G11B5/5582 ,  G11B5/59611 ,  G11B5/59655 ,  G11B5/59694 ,  G11B20/10 ,  G11B27/3027 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1267 ,  G11B2020/1287 ,  G11B2220/20 ,  G11B2220/2516

    摘要： A hard disk drive and magnetic medium including a servo area, a data area divided into a plurality of sector blocks and at least one micro-servo area disposed between two sector blocks. There may be a micro-servo area immediately preceding each of the plurality of sector blocks. The micro-servo areas include an address mark and a track parity check code that allow the detection of an external shock that causes the recording (write) head to skip to an adjacent track in the hard disk medium. The micro-servo area is smaller than the servo areas, and various numbers of different track parity check codes can be used for different resolution of shock detection. An acceleration sensor may also be provided to detect larger external shocks. By detecting various external shocks with improved accuracy, and aborting the recording operation of data if an external shock is detected, the corruption of data in adjacent tracks is substantially reduced to improve disk drive performance.

    摘要翻译： 一种硬盘驱动器和磁介质，包括伺服区域，分成多个扇区块的数据区域和设置在两个扇区块之间的至少一个微伺服区域。 可能存在紧邻在多个扇区块中的每一个之前的微伺服区域。 微伺服区域包括地址标记和轨道奇偶校验码，其允许检测导致记录（写入）头跳到硬盘介质中的相邻轨道的外部冲击。 微伺服区域小于伺服区域，各种数量的不同轨道奇偶校验码可用于不同的震动检测分辨率。 还可以提供加速度传感器来检测更大的外部冲击。 通过以更高的精度检测各种外部冲击，并且如果检测到外部冲击则中止数据的记录操作，则相当的磁道中的数据的损坏被大大减少以提高磁盘驱动器的性能。

    Disk drive having magnetic head conduction paths with arrangements to control impedance
    47.
    发明授权
    Disk drive having magnetic head conduction paths with arrangements to control impedance 失效
    具有磁头传导路径的磁盘驱动器，具有用于控制阻抗的布置

    公开(公告)号：US07016156B2

    公开(公告)日：2006-03-21

    申请号：US10961035

    申请日：2004-10-12

    申请人： Yohji Maruyama ,  Hiroshi Ikekame ,  Hisashi Takano

    发明人： Yohji Maruyama ,  Hiroshi Ikekame ,  Hisashi Takano

    IPC分类号： G11B5/55

    CPC分类号： G11B5/486 ,  G11B5/484

    摘要： Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the electric wiring corresponding to a recording current supplying device to this magnetic head are formed on a suspension member for mechanically suspending the magnetic head, the recording current being supplied to a magnetic head recording device by employing such electric wiring, the characteristic impedance of which is higher than a maximum impedance of the magnetic head recording device.

    摘要翻译： 磁盘装置包括能够满足高于或等于200MHz的高频记录的电气条件的电线，至少具有至磁记录介质的记录装置的磁头以及对应于记录的电线 该磁头的电流供给装置形成在用于机械地悬挂磁头的悬挂构件上，记录电流通过采用这种电线被提供给磁头记录装置，其特性阻抗高于该磁头的最大阻抗 磁头记录装置。

    Disk drive having magnetic head conduction paths with arrangements to control impedance
    48.
    发明授权
    Disk drive having magnetic head conduction paths with arrangements to control impedance 有权
    具有磁头传导路径的磁盘驱动器，具有用于控制阻抗的布置

    公开(公告)号：US06894874B2

    公开(公告)日：2005-05-17

    申请号：US10624839

    申请日：2003-07-23

    申请人： Yohji Maruyama ,  Hiroshi Ikekame ,  Hisashi Takano

    发明人： Yohji Maruyama ,  Hiroshi Ikekame ,  Hisashi Takano

    IPC分类号： G11B5/60 ,  G11B5/48 ,  G11B5/55

    CPC分类号： G11B5/486 ,  G11B5/484

    摘要： Magnetic disk apparatus includes an electric wiring capable of satisfying an electric condition under which high frequency recording higher than or equal to 200 MHz, a magnetic head having at least a recording device to a magnetic recording medium, and also the electric wiring corresponding to a recording current supplying device to this magnetic head are formed on a suspension member for mechanically suspending the magnetic head, the recording current being supplied to a magnetic head recording device by employing such electric wiring, the characteristic impedance of which is higher than a maximum impedance of the magnetic head recording device.

    摘要翻译： 磁盘装置包括能够满足高于或等于200MHz的高频记录的电气条件的电线，至少具有至磁记录介质的记录装置的磁头以及对应于记录的电线 该磁头的电流供给装置形成在用于机械地悬挂磁头的悬挂构件上，记录电流通过采用这种电线被提供给磁头记录装置，其特性阻抗高于该磁头的最大阻抗 磁头记录装置。

    Magnetic recording disk drive
    49.
    发明授权
    Magnetic recording disk drive 有权
    磁记录磁盘驱动器

    公开(公告)号：US06879460B2

    公开(公告)日：2005-04-12

    申请号：US10681211

    申请日：2003-10-09

    申请人： Futoshi Tomiyama ,  Takehiko Hamaguchi ,  Toru Matsushita ,  Hideki Zaitsu ,  Reijiro Tsuchiya ,  Hisashi Takano

    发明人： Futoshi Tomiyama ,  Takehiko Hamaguchi ,  Toru Matsushita ,  Hideki Zaitsu ,  Reijiro Tsuchiya ,  Hisashi Takano

    IPC分类号： G11B5/09 ,  G11B5/55 ,  G11B5/56 ,  G11B5/596 ,  G11B15/04 ,  G11B21/02 ,  G11B21/10

    CPC分类号： G11B5/5526 ,  G11B5/59633

    摘要： A magnetic recording disk drive can prevent the deterioration of the head off-track characteristics and the reduction of the drive performance even when an erase band asymmetry resulting from a skew angle exists. A write inhibit slice value for an inner peripheral side offset is made smaller than a write inhibit slice value for an outer peripheral side offset at a position where an erase band on the inner peripheral side is greater than an erase band on the outer peripheral side, so that the adjacent track on the outer peripheral side cannot easily erase a data track. On the contrary, the inner periphery and the outer periphery are paraphrased at a position where the erase band on the outer peripheral side is greater than the erase band on the inner peripheral side.

    摘要翻译： 磁记录盘驱动器即使当存在由倾斜角度导致的擦除带不对称性时，也可以防止磁头偏离磁道特性的恶化和驱动性能的降低。 使内周侧偏移的写禁止限幅值小于在内周侧的擦除频带大于外周侧的擦除频带的位置处的外周侧偏移的写禁止限幅值， 使得外周侧的相邻轨道不能容易地擦除数据轨道。 相反，内周侧和外周侧在外周侧的擦除带大于内周侧的擦除带的位置被释义。

    Magnetic head and magnetic storage apparatus using the same
    50.
    发明授权
    Magnetic head and magnetic storage apparatus using the same 失效
    磁头及使用其的磁性存储装置

    公开(公告)号：US06469873B1

    公开(公告)日：2002-10-22

    申请号：US09065868

    申请日：1998-04-24

    申请人： Yoji Maruyama ,  Yoshio Suzuki ,  Ryoichi Nakatani ,  Hisashi Takano

    发明人： Yoji Maruyama ,  Yoshio Suzuki ,  Ryoichi Nakatani ,  Hisashi Takano

    IPC分类号： G11B539

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/035 ,  G11B5/3954 ,  G11B2005/0029 ,  G11B2005/3996

    摘要： It is the object of the invention to provide a magnetic head and a magnetic storage apparatus using the magnetic head provided with a signal reproducing means which is capable of using the same signal processing circuit as used for the conventional longitudinal magnetization film type recording medium even when a perpendicular magnetization film type recording medium is used. Because the present invention renders the reproducing signal generated from a perpendicular magnetization film Gaussian shaped (Lorentzian pulse), the same signal processing circuit as used for the conventional longitudinal magnetization film type recording medium can be used. To accomplish this object, in the reproducing means which is the component of the information reproducing component of the magnetic head, the first spin valve element and the second valve element are piled up, the magnetization direction of pinned layers of both elements is prescribed so as to be antiparallel each other, and lead electrodes of both elements are connected so as to be common. When two spin valve elements are piled up to compose a reproducing means, the first spin valve element is structured so as to have an Ru film between the first ferromagnetic film and the second ferromagnetic film and so as to have a Cu film between the second ferromagnetic film and the third ferromagnetic film, and the second spin valve element is structured so as to have a Cu film between the fourth ferromagnetic film and the fifth ferromagnetic film. These two elements are piled up with interposition of a desired spacer film adjacently.

    摘要翻译： 本发明的目的是提供一种使用具有信号再现装置的磁头的磁头和磁存储装置，该装置能够使用与常规的纵向磁化膜式记录介质相同的信号处理电路，即使当 使用垂直磁化膜型记录介质。 因为本发明使得从垂直磁化膜高斯形（洛伦兹脉冲）产生的再现信号，可以使用与常规纵向磁化膜型记录介质相同的信号处理电路。 为了实现该目的，在作为磁头的信息再现部件的部件的再现装置中，第一自旋阀元件和第二阀元件堆叠，两个元件的钉扎层的磁化方向被规定为 反向平行，并且两个元件的引线电极连接成共同的。 当两个自旋阀元件堆积以构成再现装置时，第一自旋阀元件构造成在第一铁磁膜和第二铁磁膜之间具有Ru膜，并且在第二铁磁性元件之间具有Cu膜 膜和第三铁磁膜，并且第二自旋阀元件被构造成在第四铁磁膜和第五铁磁膜之间具有Cu膜。 这两个元件堆积在一起，相邻地插入所需的间隔膜。