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    Lens driving device and portable equipment with camera
    1.
    发明授权
    Lens driving device and portable equipment with camera 失效
    镜头驱动装置和带相机的便携式设备

    公开(公告)号：US07440201B2

    公开(公告)日：2008-10-21

    申请号：US10698053

    申请日：2003-10-30

    申请人： Toshifumi Tsuruta ,  Hidekazu Yoneyama ,  Masao Yajima ,  Sadayoshi Yasuda

    发明人： Toshifumi Tsuruta ,  Hidekazu Yoneyama ,  Masao Yajima ,  Sadayoshi Yasuda

    IPC分类号： G02B7/02

    CPC分类号： H04N5/2254

    摘要： A lens driving device includes a moving body having a lens and a drive magnet that is moveable with the lens in an optical axis direction of the lens, and a fixed body that moveably supports the moving body in the optical axis direction. The fixed body includes a first drive coil and a second drive coil that are disposed in the optical axis direction and form magnetic circuits with the drive magnet, and a first magnetic member and a second magnetic member that are disposed opposite the first drive coil and the second drive coil, respectively. The moving body is retained at a first position by magnetic attraction working between the drive magnet and the first magnetic member when energization of the first drive coil is stopped. The moving body is also retained at a second position by magnetic attraction working between the drive magnet and the second magnetic member when energization of the second drive coil is stopped.

    摘要翻译： 透镜驱动装置包括具有透镜的移动体和能够沿透镜的光轴方向与透镜一起移动的驱动磁体，以及在光轴方向上可移动地支撑移动体的固定体。 固定体包括沿光轴方向设置并与驱动磁体形成磁路的第一驱动线圈和第二驱动线圈，以及与第一驱动线圈相对设置的第一磁性构件和第二磁性构件， 第二驱动线圈。 当第一驱动线圈的通电停止时，通过在驱动磁体和第一磁性构件之间的磁吸引作用，移动体被保持在第一位置。 当第二驱动线圈的通电停止时，通过在驱动磁体和第二磁性构件之间的磁吸引作用，移动体也保持在第二位置。

    LENS DRIVING DEVICE
    2.
    发明申请
    LENS DRIVING DEVICE 有权
    镜头驱动装置

    公开(公告)号：US20100149667A1

    公开(公告)日：2010-06-17

    申请号：US12594052

    申请日：2008-03-25

    申请人： Akihito Wada ,  Toshifumi Tsuruta

    发明人： Akihito Wada ,  Toshifumi Tsuruta

    IPC分类号： G02B7/04

    CPC分类号： G02B13/0035 ,  G02B7/08 ,  H02K41/0356

    摘要： A lens driving device may include a movable lens body which holds a lens, and a driving mechanism for moving the movable lens body in an optical axis direction. The driving mechanism includes coils attached to the movable lens body, and a magnet opposed to the coils. When a gap between the coils and the magnet is expressed as A, and the width of the coil is expressed as B, a conditional expression of 0.3B≦A≦B is satisfied.

    摘要翻译： 透镜驱动装置可以包括保持透镜的可移动透镜体和用于沿着光轴方向移动可移动透镜体的驱动机构。 驱动机构包括附接到可移动透镜主体的线圈和与线圈相对的磁体。 当线圈和磁体之间的间隙表示为A，线圈的宽度表示为B时，满足条件表达式为0.3B＆nlE; A＆nlE; B。

    Permanent magnet embedded motor
    3.
    发明授权
    Permanent magnet embedded motor 失效
    永磁式嵌入式电机

    公开(公告)号：US07042127B2

    公开(公告)日：2006-05-09

    申请号：US10817719

    申请日：2004-04-01

    申请人： Toshifumi Tsuruta ,  Hideki Kanebako ,  Noboru Otsuki ,  Dongning Zhang

    发明人： Toshifumi Tsuruta ,  Hideki Kanebako ,  Noboru Otsuki ,  Dongning Zhang

    IPC分类号： H02K21/12

    CPC分类号： H02K1/276

    摘要： A permanent magnet embedded motor including a rotor which is provided with a plurality of slits and a plurality of permanent magnets embedded into the slits and a stator which is provided with an iron core having a plurality of slots to which a coil is wound and is arranged to face the rotor via a gap. The slit includes a permanent magnet embedded part into which the permanent magnet is embedded in a direction perpendicular to the radial direction of the rotor and an “L”-shaped air gap part integrally provided on both ends of the permanent magnet embedded part. An angle “θ1” for one pole of the rotor and an angle “θ2” of the “L”-shaped air gap part are set to be 0.1≦θ2/θ1≦0.3. Further, a radius “R” of a circumscribed circle of the rotor and a radius “R1” for forming an outer peripheral face of the rotor at a portion of the “L”-shaped air gap part are preferably set to be 0.1≦(R−R1)/R≦0.3.

    摘要翻译： 一种永磁体嵌入式电动机，其包括设置有多个狭缝的转子和嵌入到所述狭缝中的多个永磁体，以及定子，所述定子具有铁心，所述铁芯具有缠绕线圈的多个槽，并且布置 通过间隙面对转子。 狭缝包括永磁体嵌入部，永磁体嵌入在与转子的径向垂直的方向上，并且一体地设置在永磁体嵌入部的两端的“L”形气隙部。 转子的一个极的角度“θ1”和“L”形的气隙部分的角度“θ2”被设置为0.1 <=θ2 /θ1<= 0.3。 此外，在“L”形气隙部分的一部分，转子的外接圆的半径“R”和用于形成转子的外周面的半径“R 1”优选设定为0.1 < =（RR 1）/ R <= 0.3。

    Lens driving device
    4.
    发明授权
    Lens driving device 有权
    镜头驱动装置

    公开(公告)号：US08289638B2

    公开(公告)日：2012-10-16

    申请号：US12594052

    申请日：2008-03-25

    申请人： Akihito Wada ,  Toshifumi Tsuruta

    发明人： Akihito Wada ,  Toshifumi Tsuruta

    IPC分类号： G02B7/02

    CPC分类号： G02B13/0035 ,  G02B7/08 ,  H02K41/0356

    摘要： A lens driving device may include a movable lens body which holds a lens, and a driving mechanism for moving the movable lens body in an optical axis direction. The driving mechanism includes coils attached to the movable lens body, and a magnet opposed to the coils. When a gap between the coils and the magnet is expressed as A, and the width of the coil is expressed as B, a conditional expression of 0.3B≦A≦B is satisfied.

    摘要翻译： 透镜驱动装置可以包括保持透镜的可移动透镜体和用于沿着光轴方向移动可移动透镜体的驱动机构。 驱动机构包括附接到可移动透镜主体的线圈和与线圈相对的磁体。 当线圈和磁体之间的间隙表示为A，线圈的宽度表示为B时，满足条件表达式为0.3B＆nlE; A＆nlE; B。

    Lens Driving Device and Portable Equipment with Camera
    7.
    发明申请
    Lens Driving Device and Portable Equipment with Camera 审中-公开
    镜头驱动装置及相机便携式设备

    公开(公告)号：US20090086335A1

    公开(公告)日：2009-04-02

    申请号：US12247862

    申请日：2008-10-08

    申请人： Toshifumi TSURUTA ,  Hidekazu YONEYAMA ,  Masao YAJIMA ,  Sadayoshi YASUDA

    发明人： Toshifumi TSURUTA ,  Hidekazu YONEYAMA ,  Masao YAJIMA ,  Sadayoshi YASUDA

    IPC分类号： G02B15/22 ,  G02B7/02

    CPC分类号： H04N5/2254

    摘要： A lens driving device includes a moving body having a lens and a drive magnet that is moveable with the lens in an optical axis direction of the lens, and a fixed body that moveably supports the moving body in the optical axis direction. The fixed body includes a first drive coil and a second drive coil that are disposed in the optical axis direction and form magnetic circuits with the drive magnet, and a first magnetic member and a second magnetic member that are disposed opposite the first drive coil and the second drive coil, respectively. The moving body is retained at a first position by magnetic attraction working between the drive magnet and the first magnetic member when energization of the first drive coil is stopped. The moving body is also retained at a second position by magnetic attraction working between the drive magnet and the second magnetic member when energization of the second drive coil is stopped.

    摘要翻译： 透镜驱动装置包括具有透镜的移动体和能够沿透镜的光轴方向与透镜一起移动的驱动磁体，以及在光轴方向上可移动地支撑移动体的固定体。 固定体包括沿光轴方向设置并与驱动磁体形成磁路的第一驱动线圈和第二驱动线圈，以及与第一驱动线圈相对设置的第一磁性构件和第二磁性构件， 第二驱动线圈。 当第一驱动线圈的通电停止时，通过在驱动磁体和第一磁性构件之间的磁吸引作用，移动体被保持在第一位置。 当第二驱动线圈的通电停止时，通过在驱动磁体和第二磁性构件之间的磁吸引作用，移动体也保持在第二位置。

    Small-sized hydroelectric power generating apparatus
    8.
    发明授权
    Small-sized hydroelectric power generating apparatus 有权

    公开(公告)号：US06559553B2

    公开(公告)日：2003-05-06

    申请号：US09946473

    申请日：2001-09-06

    申请人： Yukinobu Yumita ,  Toshifumi Tsuruta

    发明人： Yukinobu Yumita ,  Toshifumi Tsuruta

    IPC分类号： H02P904

    CPC分类号： F03B3/00 ,  F05B2240/90 ,  H02K7/1823 ,  Y02E10/223

    摘要： A small-sized hydroelectric power generating apparatus includes a body case having a fluid passage, a water wheel provided at the above fluid passage and rotating with passing of the fluid having the predetermined flowing amount, a rotator coupled to this water wheel, and rotating with the water wheel, the rotator serving as a rotor portion arranged opposed to a stator portion, the rotor portion being relatively rotated in relation to the stator portion by passing the fluid to generate electric power, the stator portion having comb-shaped pole teeth which are arranged in the circumferential direction at regular intervals so as to be opposed to the peripheral surface of a rotor magnet of the above rotor portion, and a circumferential gap between the adjacent pole teeth is set to 1.5 times or less the size of a radial gap between each pole tooth and the rotor magnet.