利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

112 条记录 (耗时 0.031 秒)

    Magnetic disk device and suspension
    72.
    发明申请
    Magnetic disk device and suspension 有权
    磁盘装置和悬架

    公开(公告)号：US20060028768A1

    公开(公告)日：2006-02-09

    申请号：US11197993

    申请日：2005-08-05

    申请人： Toshihiko Shimizu ,  Haruhide Takahashi ,  Kousaku Wakatsuki ,  Keiko Watanabe

    发明人： Toshihiko Shimizu ,  Haruhide Takahashi ,  Kousaku Wakatsuki ,  Keiko Watanabe

    IPC分类号： G11B5/48

    CPC分类号： G11B5/4833

    摘要： Embodiments of the invention suppress head jump at the time of application of an impact to provide for an excellent impact resistance performance in a magnetic disk device. In one embodiment, a magnetic disk device comprises a disk that records information, a slider mounting thereon a magnetic head, and an actuator mounting thereon the slider on a tip end side thereof turnably so as to move radially of the disk. The actuator comprises a suspension mounting the slider on a tip end side thereof to give a predetermined load to the slider, and an arm that holds the suspension, the arm being supported to be able to turn. The arm comprises two arm portions juxtaposed in a direction perpendicular to a surface of the disk, and a spacing between the two arm portions on a side of supported portions thereof in the direction perpendicular to the surface of the disk is larger than that on a side of the slider in the direction perpendicular to the surface of the disk.

    摘要翻译： 本发明的实施例在施加冲击时抑制头跳，从而在磁盘装置中提供优异的抗冲击性能。 在一个实施例中，磁盘装置包括记录信息的盘，安装在其上的滑块以及安装在其顶端侧上的滑块的致动器，以便可旋转地移动到盘的径向上。 致动器包括悬架，其将滑块安装在其顶端侧，以向滑块提供预定的负载，以及支撑悬架的臂，所述臂被支撑以能够转动。 臂包括沿垂直于盘的表面的方向并置的两个臂部，并且在垂直于盘表面的方向上的支撑部分的一侧的两个臂部之间的间隔大于侧面 的滑块在垂直于盘表面的方向上。

    Magnetic disk apparatus
    74.
    发明授权
    Magnetic disk apparatus 失效
    磁盘装置

    公开(公告)号：US06927947B2

    公开(公告)日：2005-08-09

    申请号：US10637493

    申请日：2003-08-11

    申请人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odal

    发明人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odal

    IPC分类号： G11B5/55 ,  G11B5/56

    CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/486 ,  G11B5/4873 ,  G11B5/5552 ,  G11B5/5582

    摘要： A head support mechanism includes a slider equipped with a magnetic head to read/write information from/to a magnetic disk, a load beam to provide the slider with an appropriate load, the load beam being flexible in a direction substantially perpendicular to the disk, and a microactuator mounting portion equipped with a microactuator. A first actuator fixing portion, which connects the microactuator mounting portion to a carriage, and a second actuator fixing portion on the magnetic head side of the microactuator mounting portion, which connects the microactuator mounting portion to the load beam, are coupled by two arm portions of the microactuator mounting portion. The microactuator is mounted on the microactuator mounting portion so that the microactuator does not come into contact with the microactuator mounting portion between the first actuator fixing portion and the second actuator fixing portion.

    摘要翻译： 磁头支撑机构包括一个装备有从磁盘读取/写入信息的磁头的滑块，负载梁，以向滑块提供适当的负载，负载梁在基本上垂直于磁盘的方向上是柔性的， 以及配有微型致动器的微型制动器安装部。 将微致动器安装部分连接到滑架的第一致动器固定部分和将微致动器安装部分连接到负载梁的微致动器安装部分的磁头侧上的第二致动器固定部分通过两个臂部分 的微致动器安装部。 微致动器安装在微致动器安装部分上，使得微致动器不与第一致动器固定部分和第二致动器固定部分之间的微致动器安装部分接触。

    Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same
    75.
    发明授权
    Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same 有权
    用于定位磁头的支架臂组件和使用其的磁盘装置

    公开(公告)号：US06879467B2

    公开(公告)日：2005-04-12

    申请号：US10157087

    申请日：2002-05-30

    申请人： Toshihiko Shimizu ,  Tetsuya Hamaguchi ,  Toshihiro Arisaka ,  Hiromitsu Masuda ,  Gentaro Nakamura ,  Takenori Atsumi

    发明人： Toshihiko Shimizu ,  Tetsuya Hamaguchi ,  Toshihiro Arisaka ,  Hiromitsu Masuda ,  Gentaro Nakamura ,  Takenori Atsumi

    IPC分类号： G11B5/55 ,  G11B23/00

    CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/5526 ,  G11B5/5582

    摘要： According to the invention, there is provided a carriage arm assembly including a carriage arm having two arm members. The arm member is constructed in such a way that the width of its coil side end and the width of its suspension side end are narrower than that of its intermediate area. This construction widens a servo band width, improves positioning accuracy, and reduces positioning errors of a magnetic disk apparatus, so that recording density is improved and storage capacity is increased. Further, by coupling two arm members using a restriction member via a visco-elastic member, it is possible to achieve a high damping effect on various vibration modes including in-plane bending of the arms, and suppress vibration of the carriage so as to reduce the positioning errors.

    摘要翻译： 根据本发明，提供了一种滑架臂组件，其包括具有两个臂构件的滑架臂。 臂构件的构造使得其线圈侧端的宽度和其悬挂侧端的宽度比其中间区域的宽度窄。 该结构扩大了伺服带宽，提高了定位精度，并且减小了磁盘装置的定位误差，从而提高了记录密度并提高了存储容量。 此外，通过经由粘弹性构件使用限制构件联接两个臂构件，可以对包括臂的平面内弯曲的各种振动模式实现高阻尼效果，并且抑制滑架的振动以减少 定位错误。

    Magnetic head gimbal assembly and magnetic disk unit
    76.
    发明授权
    Magnetic head gimbal assembly and magnetic disk unit 失效
    磁头万向节组件和磁盘单元

    公开(公告)号：US06760193B1

    公开(公告)日：2004-07-06

    申请号：US09654915

    申请日：2000-09-05

    申请人： Hidekazu Kohira ,  Hiromitsu Tokisue ,  Masaaki Matsumoto ,  Masayuki Suzuki ,  Yoshinori Takeuchi ,  Toshihiko Shimizu

    发明人： Hidekazu Kohira ,  Hiromitsu Tokisue ,  Masaaki Matsumoto ,  Masayuki Suzuki ,  Yoshinori Takeuchi ,  Toshihiko Shimizu

    IPC分类号： G11B548

    CPC分类号： G11B5/4833

    摘要： A magnetic disk unit includes a magnetic disk attached to a spindle so as to be rotatable, a slider having a magnetic head for reading/writing data onto/from the magnetic disk, a suspension for providing the slider with a predetermined load, and an actuator arm for positioning the slider attached to the suspension on the magnetic disk. A first pad including the magnetic head and second pads including no magnetic heads are disposed on an air bearing surface of the slider. During rotation of said magnetic disk, a part of the first pad keeps in contact with the magnetic disk. A load point of the suspension with respect to the slider is positioned between a leading edge of the slider and a position located at a distance equivalent to substantially 0.42 times a whole length of the slider from the leading edge of the slider.

    摘要翻译： 磁盘单元包括：可旋转地安装在主轴上的磁盘，具有磁头的滑块，用于将数据读入/写入磁盘，用于为滑块提供预定负载的悬架，以及致动器 用于将附接到磁盘上的悬架的滑块定位的臂。 包括磁头的第一焊盘和不包括磁头的第二焊盘设置在滑块的空气轴承表面上。 在所述磁盘旋转期间，第一焊盘的一部分与磁盘保持接触。 悬架相对于滑动件的载荷点位于滑动件的前缘之间，并且位于距离滑块的前缘相当于滑块整个长度的大约0.42倍的距离的位置。

    High frequency power amplifier circuit device
    77.
    发明授权
    High frequency power amplifier circuit device 有权
    高频功率放大器电路设备

    公开(公告)号：US06759906B2

    公开(公告)日：2004-07-06

    申请号：US10170376

    申请日：2002-06-14

    申请人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

    发明人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

    IPC分类号： H03G330

    CPC分类号： H03F1/0261 ,  H03F2200/465 ,  H03G1/0017 ,  H03G3/3042 ,  H03G3/3047

    摘要： A multistage high frequency power amplifier circuit device has a plurality of semiconductor amplification elements connected in a cascade. The circuit device is provided with a bias control circuit used to control the bias voltage or bias current of the output semiconductor amplification element in each stage so as to reduce the variation of the output power with respect to the power control signal voltage in an area around the threshold voltage of the semiconductor amplification elements. This realizes a high frequency power amplifier circuit device provided with excellent controllability of the output power and high efficiency at the time of low power output realized with use of such a control voltage as a power control signal.

    摘要翻译： 多级高频功率放大器电路装置具有串联连接的多个半导体放大元件。 电路装置设置有偏置控制电路，用于控制各级输出半导体放大元件的偏置电压或偏置电流，以便减少相对于周围区域内的功率控制信号电压的输出功率的变化 半导体放大元件的阈值电压。 这实现了在使用诸如功率控制信号的这种控制电压实现的低功率输出时，输出功率具有优异的可控制性和高效率的高频功率放大器电路器件。

    Magnetic disk apparatus
    78.
    发明授权
    Magnetic disk apparatus 有权
    磁盘装置

    公开(公告)号：US06614627B1

    公开(公告)日：2003-09-02

    申请号：US09649614

    申请日：2000-08-29

    申请人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odai

    发明人： Toshihiko Shimizu ,  Hiromitsu Masuda ,  Irizo Naniwa ,  Mikio Tokuyama ,  Shigeo Nakamura ,  Kousaku Wakatsuki ,  Haruhide Takahashi ,  Masaki Odai

    IPC分类号： G11B556

    CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/486 ,  G11B5/4873 ,  G11B5/5552 ,  G11B5/5582

    摘要： A magnetic disk apparatus of the present invention is equipped with a microactuator for micro motion using piezoelectric elements in addition to a coarse adjustment actuator such as a voice coil motor or the like, eliminates parts that slide between the microactuator and surrounding members, and alleviates stress on the piezoelectric elements even if an impact is given to the magnetic disk apparatus. Thus, a first actuator fixing portion on a carriage side and a second actuator fixing portion on a magnetic head side of a microactuator mounting portion are coupled with a plurality of flexible coupling portions and coupling portions are placed outside the microactuator in substantially symmetric with respect to a centerline in a longitudinal direction of a suspension.

    摘要翻译： 本发明的磁盘装置除了诸如音圈电机等粗调调节器之外，还配备有使用压电元件进行微动作的微致动器，消除了在微致动器和周围构件之间滑动的部件，并且减轻了应力 即使对磁盘装置施加冲击，也可以在压电元件上使用。 因此，滑架侧的第一致动器固定部分和微致动器安装部分的磁头侧上的第二致动器固定部分与多个柔性联接部分联接，并且联接部分位于微致动器的外部，相对于 在悬挂的纵向上的中心线。