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    Rotating disk type storage unit with reduced vibration
    1.
    发明授权
    Rotating disk type storage unit with reduced vibration 失效
    旋转盘式存储单元减振

    公开(公告)号：US07652850B2

    公开(公告)日：2010-01-26

    申请号：US11132049

    申请日：2005-05-17

    申请人： Kenji Suzuki ,  Toshihiko Shimizu ,  Shingo Tsuda ,  Kouki Uefune

    发明人： Kenji Suzuki ,  Toshihiko Shimizu ,  Shingo Tsuda ,  Kouki Uefune

    IPC分类号： G11B21/08 ,  G11B5/55

    CPC分类号： G11B5/56 ,  G11B5/5565

    摘要： Embodiments of the invention decrease bending vibrations and torsional vibrations of a voice coil generated by off-plane vibrational forces on the voice coil to reduce noise and to enable a large capacity. In one embodiment, a rotating disk type storage unit comprises a rotating disk recording medium, a head that moves radially relative to the rotating disk recording medium to perform recording or reproduction, a turnable actuator having mounted on one side thereof the head, and a voice coil motor to drive the actuator. The voice coil motor comprises a voice coil mounted on the other side end of the actuator, and a magnet arranged in opposition to the voice coil. A magnet outer periphery of the magnet disposed distant from an actuator turning center is formed to be arcuately concave in shape, and the concave-shaped outer periphery intersects the voice coil.

    摘要翻译： 本发明的实施例减少由音圈上的离平面振动产生的音圈的弯曲振动和扭转振动，以减少噪声并实现大容量。 在一个实施例中，旋转盘型存储单元包括旋转盘记录介质，相对于旋转盘记录介质径向移动以执行记录或再现的头，安装在头的一侧的可转动致动器和声音 线圈电机驱动执行机构。 音圈电机包括安装在致动器的另一侧的音圈和与音圈相对布置的磁体。 远离致动器转动中心设置的磁体的磁体外周形成为弧形的凹状，凹状的外周与音圈相交。

    Rotating disk type storage unit with reduced vibration
    2.
    发明申请
    Rotating disk type storage unit with reduced vibration 失效
    旋转盘式存储单元减振

    公开(公告)号：US20050254177A1

    公开(公告)日：2005-11-17

    申请号：US11132049

    申请日：2005-05-17

    申请人： Kenji Suzuki ,  Toshihiko Shimizu ,  Shingo Tsuda ,  Kouki Uefune

    发明人： Kenji Suzuki ,  Toshihiko Shimizu ,  Shingo Tsuda ,  Kouki Uefune

    IPC分类号： G11B21/02 ,  G11B5/54 ,  G11B5/55 ,  G11B5/56 ,  G11B5/596 ,  G11B21/08 ,  G11B21/22 ,  H02K33/18

    CPC分类号： G11B5/56 ,  G11B5/5565

    摘要： Embodiments of the invention decrease bending vibrations and torsional vibrations of a voice coil generated by off-plane vibrational forces on the voice coil to reduce noise and to enable a large capacity. In one embodiment, a rotating disk type storage unit comprises a rotating disk recording medium, a head that moves radially relative to the rotating disk recording medium to perform recording or reproduction, a turnable actuator having mounted on one side thereof the head, and a voice coil motor to drive the actuator. The voice coil motor comprises a voice coil mounted on the other side end of the actuator, and a magnet arranged in opposition to the voice coil. A magnet outer periphery of the magnet disposed distant from an actuator turning center is formed to be arcuately concave in shape, and the concave-shaped outer periphery intersects the voice coil.

    摘要翻译： 本发明的实施例减少由音圈上的离平面振动产生的音圈的弯曲振动和扭转振动，以减少噪声并实现大容量。 在一个实施例中，旋转盘型存储单元包括旋转盘记录介质，相对于旋转盘记录介质径向移动以执行记录或再现的头，安装在头的一侧的可转动致动器和声音 线圈电机驱动执行机构。 音圈电机包括安装在致动器的另一侧的音圈和与音圈相对布置的磁体。 远离致动器转动中心设置的磁体的磁体外周形成为弧形的凹状，凹状的外周与音圈相交。

    Magnetic Head Drive Device
    3.
    发明申请
    Magnetic Head Drive Device 有权
    磁头驱动装置

    公开(公告)号：US20110141614A1

    公开(公告)日：2011-06-16

    申请号：US12963111

    申请日：2010-12-08

    申请人： Kenji Suzuki ,  Shinsuke Nakagawa ,  Toshihiko Shimizu ,  Eiji Soga ,  Takaaki Deguchi ,  Mutsuro Ohta

    发明人： Kenji Suzuki ,  Shinsuke Nakagawa ,  Toshihiko Shimizu ,  Eiji Soga ,  Takaaki Deguchi ,  Mutsuro Ohta

    IPC分类号： G11B21/02 ,  G11B5/54

    CPC分类号： G11B5/4833 ,  G11B5/4813 ,  G11B5/4873

    摘要： A magnetic head drive device including a suspension for supporting a magnetic head, and a main actuator that produces rotary movement of the magnetic head by applying current to a coil. The main actuator includes end arms each comprising a single micro-actuator, and an intermediate arm comprising two micro-actuators. The micro-actuators of the end arms are driven in the same direction, and the micro-actuators of the intermediate arm are driven in the opposite direction to the drive direction of the micro-actuators of said the arms.

    摘要翻译： 一种磁头驱动装置，包括用于支撑磁头的悬架，以及通过向线圈施加电流来产生磁头的旋转运动的主致动器。 主致动器包括各自包括单个微致动器的端臂和包括两个微致动器的中间臂。 端臂的微致动器沿相同的方向被驱动，并且中间臂的微致动器沿与所述臂的微致动器的驱动方向相反的方向被驱动。

    Magnetic disk device with improved shielding
    6.
    发明授权
    Magnetic disk device with improved shielding 失效
    具有改进屏蔽的磁盘设备

    公开(公告)号：US07525759B2

    公开(公告)日：2009-04-28

    申请号：US11222566

    申请日：2005-09-09

    申请人： Takehiko Eguchi ,  Masayuki Kurita ,  Toshihiko Shimizu ,  Mikio Tokuyama

    发明人： Takehiko Eguchi ,  Masayuki Kurita ,  Toshihiko Shimizu ,  Mikio Tokuyama

    IPC分类号： G11B5/39

    CPC分类号： G11B33/1493

    摘要： Embodiments of the invention provide a magnetic disk device which improves the shielding function for the magnetic heads while maintaining a form factor having an inexpensive constitution. In one embodiment, a magnetic disk device comprises a rotary disk-type magnetic disk; a magnetic head for recording or reproducing information; a magnetic head support mechanism for supporting the magnetic head; a shroud having an opening in which the magnetic head support mechanism is inserted, and surrounding the outer circumference of the magnetic disk; and a housing. The housing includes a base and a cover, and accommodates the magnetic disk, the magnetic head, the magnetic head support mechanism and the shroud. The base is constituted by using a nonmagnetic material and the shroud is constituted by using a magnetic material.

    摘要翻译： 本发明的实施例提供了一种磁盘装置，其在保持具有便宜构造的形状因素的同时提高了磁头的屏蔽功能。 在一个实施例中，磁盘装置包括旋转盘式磁盘; 用于记录或再现信息的磁头; 用于支撑磁头的磁头支撑机构; 具有开口的护罩，其中磁头支撑机构插入其中，并围绕磁盘的外周; 和住房。 壳体包括基座和盖，并且容纳磁盘，磁头，磁头支撑机构和护罩。 底座由使用非磁性材料构成，护罩由磁性材料构成。

    Magnetic disk drive
    7.
    发明申请
    Magnetic disk drive 审中-公开
    磁盘驱动器

    公开(公告)号：US20080112299A1

    公开(公告)日：2008-05-15

    申请号：US11985123

    申请日：2007-11-13

    申请人： Toshihiko Shimizu ,  Keiko Watanabe

    发明人： Toshihiko Shimizu ,  Keiko Watanabe

    IPC分类号： G11B33/02

    CPC分类号： G11B33/1466 ,  G11B33/1433

    摘要： Embodiments of present invention help to realize a highly reliable magnetic disk drive by preventing a positional displacement between a magnetic head and a target track by decreasing restricting forces that a cover exerts on a base when the temperature is increased. According to one embodiment, a base is formed by aluminum die casting, has a concave, rectangular parallelepiped shape, and is formed with step portions at the four corners. A cover is a flat plate of stainless steel or iron. Four corner portions of the cover are bent to form step portions. The cover is fixed to the base at the four corners with bolts at two side positions (six positions in total). A gasket is inserted at that time to enhance the sealing performance. Since the gasket is a member like a rubber packing, it is necessary to press the gasket with the flat portions of the base and the cover To this end, the gasket is placed on top of the base step portions and the connection between the cover and the base at the four corners is made under the base step portions.

    摘要翻译： 本发明的实施例有助于通过在温度升高时通过减小盖施加在基座上的限制力来防止磁头和目标轨道之间的位置偏移来实现高度可靠的磁盘驱动。 根据一个实施例，基座由铝压铸形成，具有凹形的长方体形状，并且在四个角部形成有台阶部分。 盖是不锈钢或铁的平板。 盖的四个角部弯曲以形成台阶部。 盖子通过两个侧面位置的螺栓（总共六个位置）固定在四个角落的基座上。 此时插入垫圈以增强密封性能。 由于垫圈是像橡胶垫片的构件，因此需要用基座和盖子的平坦部分按压垫圈。为此，垫圈被放置在基座台阶部分的顶部，盖子和 在四个角落处的基部形成在基底台阶部下方。

    High frequency power amplifier circuit device
    8.
    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：US07215203B2

    公开(公告)日：2007-05-08

    申请号：US11414337

    申请日：2006-05-01

    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： H03G3/30

    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。