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    • 2. 发明申请
    • Lens Drive Device
    • 镜头驱动装置
    • US20090161231A1
    • 2009-06-25
    • US11992316
    • 2006-10-31
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • G02B7/04
    • G02B7/102
    • A lens drive device having a simple structure and small sized. The lens drive device (1) has a lens holder (3, 5), a drive shaft (21) into which one end of the lens holder (3, 5) is fitted and placed along the direction of the optical axis of lenses (14, 16), and a piezo element (17) provided at a base end (21a) of the drive shaft (21). The base end (21a) of the drive shaft (21) is fixed to a vibrator (19) of the piezo element (17), and the drive shaft (21) is vibrated in the direction of its axis by vibration of the vibrator (19) produced by conducting a pulse current to the piezo element (17). The lens holder (3, 5) is moved in the optical axis direction by using repetition of inertia force and friction force of the holder relative to the drive shaft (21).
    • 具有结构简单,体积小的透镜驱动装置。 透镜驱动装置(1)具有透镜保持器(3,5),驱动轴(21),透镜保持架(3,5)的一端沿着透镜的光轴方向嵌合并放置在该驱动轴 14,16)和设置在驱动轴(21)的基端(21a)的压电元件(17)。 驱动轴(21)的基端(21a)固定在压电元件(17)的振动器(19)上,驱动轴(21)通过振动器的振动沿其轴线方向振动( 19)通过向压电元件(17)施加脉冲电流而产生。 通过重复惯性力和保持器相对于驱动轴(21)的摩擦力,透镜架(3,5)沿光轴方向移动。
    • 3. 发明授权
    • Linear driving device
    • 线性驱动装置
    • US08466602B2
    • 2013-06-18
    • US12913121
    • 2010-10-27
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • H02N2/04
    • H02N2/025G02B7/102H01L41/0973
    • In a linear driving device 7, in which a driving shaft 21 vibrates in an axial direction by a vibration member 17, as a result of which a movable body 3 that is frictionally contact with the driving shaft 21 slides along the axial direction of the driving shaft 21, the vibration member 17 includes a piezoelectric element 23 and a vibrator 19 made of a metal plate having elasticity; the vibrator 19 is fixed to the piezoelectric element 23 by superimposing plate faces thereof; the driving shaft 21 has a trunk 25 along which the movable body 3 slides, and an end portion 26 to be fixed to the vibrator 19; a base surface 24 of the end portion 26 abuts with and is fixed to the vibrator 19; and an area of the base surface 24 is smaller than a cross sectional area of the trunk 25.
    • 在驱动轴21由振动部件17沿轴向振动的线性驱动装置7中,与驱动轴21摩擦接触的移动体3的结果沿着驱动轴线方向滑动 轴21,振动部件17包括压电元件23和由具有弹性的金属板制成的振动器19; 振动器19通过叠加板面而固定在压电元件23上; 驱动轴21具有可移动体3沿其滑动的躯干25和固定到振动器19的端部26; 端部26的基面24邻接并固定到振动器19; 并且基面24的面积小于主体25的横截面面积。
    • 4. 发明申请
    • Magnetic position detecting apparatus
    • 磁性位置检测装置
    • US20060103374A1
    • 2006-05-18
    • US11111936
    • 2005-04-22
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • G01B7/30
    • G01D5/145G01D5/2451
    • A magnetic position detecting apparatus 1 of the present invention includes one and the other magnetic resistance circuits each having multiple magnetic resistance elements arranged to be opposite to a magnetized surface, wherein one and the other magnetic resistance circuits are arranged in such a way that the resistance elements of one and the other magnetic resistance circuits are connected to one another in series and arranged in a comblike shape to be parallel to one another along a current path of each magnetic resistance element, the magnetic resistance elements of the other magnetic resistance circuit are placed between the magnetic resistance elements and of one magnetic resistance circuit
    • 本发明的磁性位置检测装置1包括一个和另一个磁阻电路,每个磁阻电路具有与磁化表面相对布置的多个磁阻元件,其中一个和另一个磁阻电路被布置成使得电阻 一个和另一个磁阻电路的元件彼此串联连接并且沿着每个磁阻元件的电流路径彼此平行地配置成梳状形状,另一个磁阻电路的磁阻元件被放置 在磁阻元件和一个磁阻电路之间
    • 5. 发明申请
    • LINEAR DRIVING DEVICE
    • 线性驱动装置
    • US20110101826A1
    • 2011-05-05
    • US12913121
    • 2010-10-27
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • H02N2/04
    • H02N2/025G02B7/102H01L41/0973
    • In a linear driving device 7, in which a driving shaft 21 vibrates in an axial direction by a vibration member 17, as a result of which a movable body 3 that is frictionally contact with the driving shaft 21 slides along the axial direction of the driving shaft 21, the vibration member 17 includes a piezoelectric element 23 and a vibrator 19 made of a metal plate having elasticity; the vibrator 19 is fixed to the piezoelectric element 23 by superimposing plate faces thereof; the driving shaft 21 has a trunk 25 along which the movable body 3 slides, and an end portion 26 to be fixed to the vibrator 19; a base surface 24 of the end portion 26 abuts with and is fixed to the vibrator 19; and an area of the base surface 24 is smaller than a cross sectional area of the trunk 25.
    • 在驱动轴21通过振动部件17沿轴向振动的直线驱动装置7中,与驱动轴21摩擦接触的移动体3的结果沿着驱动轴线方向滑动 轴21,振动部件17包括压电元件23和由具有弹性的金属板制成的振动器19; 振动器19通过叠加板面而固定在压电元件23上; 驱动轴21具有可移动体3沿其滑动的躯干25和固定到振动器19的端部26; 端部26的基面24邻接并固定到振动器19; 并且基面24的面积小于主体25的横截面面积。
    • 6. 发明授权
    • Lens drive device
    • 镜头驱动装置
    • US07724455B2
    • 2010-05-25
    • US11992316
    • 2006-10-31
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • G02B7/02
    • G02B7/102
    • A lens drive device having a simple structure and small sized. The lens drive device (1) has a lens holder (3, 5), a drive shaft (21) into which one end of the lens holder (3, 5) is fitted and placed along the direction of the optical axis of lenses (14, 16), and a piezo element (17) provided at a base end (21a) of the drive shaft (21). The base end (21a) of the drive shaft (21) is fixed to a vibrator (19) of the piezo element (17), and the drive shaft (21) is vibrated in the direction of its axis by vibration of the vibrator (19) produced by conducting a pulse current to the piezo element (17). The lens holder (3, 5) is moved in the optical axis direction by using repetition of inertia force and friction force of the holder relative to the drive shaft (21).
    • 具有结构简单,体积小的透镜驱动装置。 透镜驱动装置(1)具有透镜架(3,5),驱动轴(21),透镜保持架(3,5)的一端沿着透镜的光轴方向嵌合并配置在该驱动轴 14,16)和设置在驱动轴(21)的基端(21a)的压电元件(17)。 驱动轴(21)的基端(21a)固定在压电元件(17)的振动器(19)上,驱动轴(21)通过振动器的振动沿其轴线方向振动( 19)通过向压电元件(17)施加脉冲电流而产生。 通过重复惯性力和保持器相对于驱动轴(21)的摩擦力,透镜架(3,5)沿光轴方向移动。
    • 7. 发明授权
    • Magnetic position detecting apparatus
    • 磁性位置检测装置
    • US07071681B1
    • 2006-07-04
    • US11265155
    • 2005-11-03
    • Manabu ShirakiJunichi Tada
    • Manabu ShirakiJunichi Tada
    • G01R33/09G01B7/14G01B7/30
    • G01D5/2451G01D5/24476G01D5/24485
    • In a position detecting apparatus 1 of the present invention, magnetic resistance circuits A and B of a first main circuit 10 include a reference magnetic resistance element +A, an even harmonic correction magnetic resistance element +A3, being placed at a position shifted by (1/4)λ or (3/4)λ from the reference magnetic resistance element +A, with respect to a reference wave, and a third harmonic correction magnetic resistance element +A2, being placed at a position shifted by (1/6)λ from the reference magnetic resistance element, with respect to a reference wave, and magnetic resistance circuits A′ and B′ of a second main circuit 20 include the magnetic resistance circuit of the second main circuit 20 includes a reference magnetic resistance element +A′1, a fifth harmonic correction magnetic resistance element +A′2, being placed at a position shifted by (1/10)λ from the adjacent magnetic resistance element, with respect to a reference wave and a fifth harmonic correction magnetic resistance element +A′2, being placed at a position shifted by (4/15)λ from the reference magnetic resistance element +A′1, with respect to a third harmonic wave.
    • 在本发明的位置检测装置1中,第一主电路10的磁阻电路A和B包括基准磁阻元件+ A,均匀谐波校正磁阻元件+ A 3,位于偏移位置 相对于参考波的参考磁阻元件+ A的三角谐波校正磁阻元件+ A 2被放置在偏移(1)的位置处的(1/4)λ或(3/4) / 6)λ相对于参考波而言,第二主电路20的磁阻电路A'和B'包括第二主电路20的磁阻电路包括参考磁阻元件 + A'1,五相谐波校正磁阻元件+ A'2,相对于基准波和第五谐波被放置在从相邻的磁阻元件偏移了(1/10)λ的位置 校正磁阻元件+ A'2相对于三次谐波被放置在从基准磁阻元件+ A'1偏移(4/15)λ的位置。