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    • 2. 发明授权
    • Magnetic disk drive provided with means for pressing head against disk
    • 磁盘驱动器具有用于将磁头压向磁盘的装置
    • US5926347A
    • 1999-07-20
    • US921880
    • 1997-09-02
    • Tohru KouheiTomoyoshi YamadaYasumasa Kuroba
    • Tohru KouheiTomoyoshi YamadaYasumasa Kuroba
    • G11B5/54
    • G11B5/54
    • A magnetic disk apparatus includes a magnetic disk accommodated for rotation in a housing, a spindle mechanism for driving the magnetic disk to rotate, a magnetic head for writing and reading out information onto and from the magnetic disk, a suspension for supporting the magnetic head thereon, an actuator for driving the suspension in order to move the magnetic head in a radial direction of the magnetic disk, and a retraction mechanism for retracting the magnetic head to a particular area on the magnetic disk when the spindle mechanism is rendered inoperative. The magnetic disk apparatus further includes a mechanism provided at a location above the magnetic disk in an opposing relationship to the particular area of the magnetic disk for pressing at least one of the magnetic head and the suspension against the magnetic disk. In lieu of the pressing mechanism, a displacement restriction member may be provided.
    • 磁盘装置包括容纳在壳体中的旋转磁盘,用于驱动磁盘旋转的主轴机构,用于向磁盘上写入和读出信息的磁头,用于在其上支撑磁头的悬架 用于驱动悬架以便沿磁盘的径向移动磁头的致动器,以及用于当主轴机构不工作时将磁头缩回到磁盘上的特定区域的缩回机构。 磁盘装置还包括设置在磁盘上方的与磁盘的特定区域相对的位置处的机构,用于将磁头和悬架中的至少一个按压在磁盘上。 代替按压机构,可以设置位移限制构件。
    • 6. 发明授权
    • Method of writing servo tracks for disk file apparatus using write start or stop sectors
    • 使用写入开始或停止扇区写入磁盘文件装置的伺服磁道的方法
    • US06904010B1
    • 2005-06-07
    • US09512500
    • 2000-02-24
    • Yasumasa KurobaTomoyoshi Yamada
    • Yasumasa KurobaTomoyoshi Yamada
    • G11B21/10G11B5/596G11B19/20
    • G11B5/59633
    • A method of STW (servo track write) for improving the quality of the servo tracks by suppressing the misalignment of the write start position caused by the asynchronous continuous vibration of a disk drive is disclosed. The disk drive includes a spindle motor, a disk medium, a write/read head and a head moving mechanism for carrying out the sector servo operation. The STW method comprises the steps of detecting the continuous vibration asynchronous with the rotational frequency of the spindle motor, detecting the phase of the asynchronous continuous vibration detected, determining the write start sector of each servo track based on the detected phase of the asynchronous continuous vibration, determining the write start time of each servo track in accordance with the clock signal, and moving the head onto the servo track where the head positioning information is written, by the head moving mechanism and writing the information in the servo track based on the write start time.
    • 公开了一种用于通过抑制由磁盘驱动器的异步连续振动引起的写开始位置的不对准来提高伺服磁道的质量的STW(伺服磁道写入)的方法。 磁盘驱动器包括主轴电动机,磁盘介质,写入/读取头和用于执行扇区伺服操作的磁头移动机构。 STW方法包括以下步骤:检测与主轴电动机的转速异步的连续振动,检测检测到的异步连续振动的相位,基于异步连续振动的检测相位确定每个伺服磁道的写入开始扇区 ,根据时钟信号确定每个伺服磁道的写入开始时间,以及通过磁头移动机构将磁头移动到写入磁头定位信息的伺服磁道上,并基于写入将信息写入伺服磁道 开始时间。
    • 10. 发明授权
    • Head actuator having reduced and controlled vibration characteristics
for high speed disk drive systems
    • 头驱动器具有降低和受控的高速磁盘驱动系统的振动特性
    • US5764441A
    • 1998-06-09
    • US636802
    • 1996-04-23
    • Keiji ArugaYasumasa KurobaTomoyoshi Yamada
    • Keiji ArugaYasumasa KurobaTomoyoshi Yamada
    • G11B21/02B81B3/00G11B21/08G11B5/55
    • G11B21/085
    • A rotary moving coil actuator in a disk drive selectively positions a read/write head with respect to disk medium. A carriage is pivotable about an axis and has a carriage arm for supporting the head. A pair of magnets, disposed in spaced relationship within a magnetic yoke structure, have spaced flat faces perpendicular to the axis and define a gap therebetween. A flat coil structure, comprising one or a pair of flat coils, is attached to the carriage and disposed at least in part within the gap between the opposing flat faces of the magnets so as to be movable along a stroke of movement relatively thereto. The flat coil structure in cooperation with the magnets, generates a driving force in a direction approximately parallel to a first line which is perpendicular to the axis and passes through the axis and toward the read/write head and thereby substantially perpendicular to the seek direction of the head.
    • 盘驱动器中的旋转运动线圈致动器相对于盘介质选择性地定位读/写头。 滑架可绕轴线转动并且具有用于支撑头部的托架臂。 在磁轭结构内以间隔关系设置的一对磁体具有垂直于该轴线的间隔开的平坦表面,并且在它们之间形成间隙。 包括一个或一对扁平线圈的扁平线圈结构被附接到托架并且至少部分地设置在磁体的相对平坦表面之间的间隙内,以便能够相对于其移动。 与磁体协调的扁平线圈结构在大致平行于垂直于轴线的第一线的方向上产生驱动力,并且通过轴线并朝向读/写头,从而基本上垂直于读取方向 头部。