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    • 42. 发明授权
    • Piezoelectric/electrostrictive element
    • 压电/电致伸缩元件
    • US6091182A
    • 2000-07-18
    • US965239
    • 1997-11-06
    • Yukihisa TakeuchiTsutomu NanatakiMasao Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiMasao Takahashi
    • G02B26/08G09F9/305G09G3/20G09G3/34H01L41/09H01L41/08
    • G09G3/3433G02B26/08G09F9/305H01L41/0973G09G3/2014G09G3/2022G09G3/3493
    • Disclosed is a piezoelectric/electrostrictive element composed of an actuator section of a uni-morph type comprising a main actuator element including a piezoelectric/electrostrictive layer and a pair of electrodes formed on a first principal surface of the piezoelectric/electrostrictive layer; a vibrating section which contacts with a second principal surface of the piezoelectric/electrostrictive layer for supporting the main actuator element; and a fixed section for supporting the vibrating section in a vibrative manner; wherein a relationship of y=ax is satisfied, and an expression of 1/10.ltoreq.a.ltoreq.100 is satisfied provided that x represents a distance between the pair of electrodes (1 .mu.m.ltoreq.x.ltoreq.200 .mu.m), and y represents a thickness of the piezoelectric/electrostrictive layer (1 .mu.m.ltoreq.y.ltoreq.100 .mu.m). Accordingly, it is possible to greatly increase the relative displacement amount between the no-voltage-loaded state and the voltage-applied state and the relative displacement amount between the states in which mutually opposite electric fields are applied, making it possible to realize easy control when the element is utilized for actuators and improvement in sensitivity when the element is utilized for sensors.
    • 本发明公开了一种压电/电致伸缩元件,由压电/电致伸缩层的第一主表面上形成的包括压电/电致伸缩层的主致动器元件和形成在第一主表面上的一对电极组成的单态致动器部分构成。 与所述压电/电致伸缩层的第二主表面接触以支撑所述主致动器元件的振动部分; 以及用于以振动方式支撑所述振动部分的固定部分; 其中满足y = ax的关系,并且满足+ E,fra 1/10 + EE a = 100的表达式,只要x表示一对电极之间的距离(1μm) = x <200μm),y表示压电/电致伸缩层的厚度(1μm×y =100μm)。 因此,可以大幅提高无负荷状态与施加电压之间的相对位移量和施加相互相反的电场的状态之间的相对位移量,从而可以实现易于控制 当元件用于传感器时,该元件被用于致动器和提高灵敏度。
    • 43. 发明授权
    • Method for producing a piezoelectric/electrostrictive film-type element
    • 压电/电致伸缩薄膜型元件的制造方法
    • US6088893A
    • 2000-07-18
    • US57398
    • 1998-04-09
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • H04R17/00H01L41/09H01L41/22H04R17/08H01L41/08
    • H01L41/0973H01L41/314H01L41/1875H04R17/08Y10T29/42
    • A piezoelectric and/or electrostrictive film-type element comprises a zirconia substrate with a thin-walled diaphragm section provided integrally to cover and close a window to serve as a hollow space, and a film-shaped piezoelectric and/or electrostrictive operating section composed of a lower electrode, a piezoelectric and/or electrostrictive layer, and an upper electrode which are successively provided in a layered configuration on an outer surface of the diaphragm section in accordance with a film-forming method, wherein at least a part of a peripheral edge portion of the piezoelectric and/or electrostrictive layer extends laterally beyond a corresponding peripheral edge portion of the lower electrode to construct an overhang section located opposingly over the diaphragm section, and the overhang section is in a state of incomplete connection with respect to a partial region of the diaphragm section located just under by the aid of particles of an alumina-magnesia compound such as spinel particles allowed to intervene therebetween.Thus, it is possible to effectively improve, for example, the piezoelectric and/or electrostrictive characteristics such as the displacement amount, and the resonance frequency characteristics.
    • 压电和/或电致伸缩膜型元件包括具有薄壁隔膜部分的氧化锆基底,其整体地设置成覆盖和闭合窗口以用作中空空间;以及膜状压电和/或电致伸缩操作部分,其由 根据成膜方法在隔膜部分的外表面上依次设置成层状构造的下电极,压电和/或电致伸缩层和上电极,其中至少一部分周缘 压电和/或电致伸缩层的一部分横向延伸超过下电极的相应的周缘部分,以构成相对于隔膜部分设置的伸出部分,并且伸出部分处于与部分区域不完全连接的状态 通过氧化铝 - 氧化镁化合物的颗粒正好在其下的隔膜部分 允许尖晶石颗粒介入其间。 因此,可以有效地改善例如位移量和谐振频率特性等压电和/或电致伸缩特性。
    • 44. 发明授权
    • Piezoelectric/electrostrictive film-type element and method for
producing the same
    • 压电/电致伸缩薄膜型元件及其制造方法
    • US5814920A
    • 1998-09-29
    • US777953
    • 1996-12-23
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • Yukihisa TakeuchiTsutomu NanatakiKoji KimuraNobuo Takahashi
    • H04R17/00H01L41/09H01L41/22H04R17/08H01L41/08
    • H01L41/0973H01L41/314H01L41/1875H04R17/08Y10T29/42
    • A piezoelectric and/or electrostrictive film-type element comprises a zirconia substrate with a thin-walled diaphragm section provided integrally to cover and close a window to serve as a hollow space, and a film-shaped piezoelectric and/or electrostrictive operating section composed of a lower electrode, a piezoelectric and/or electrostrictive layer, and an upper electrode which are successively provided in a layered configuration on an outer surface of the diaphragm section in accordance with a film-forming method, wherein at least a part of a peripheral edge portion of the piezoelectric and/or electrostrictive layer extends laterally beyond a corresponding peripheral edge portion of the lower electrode to construct an overhang section located opposingly over the diaphragm section, and the overhang section is in a state of incomplete connection with respect to a partial region of the diaphragm section located just under by the aid of particles of an alumina-magnesia compound such as spinel particles allowed to intervene therebetween. Thus, it is possible to effectively improve, for example, the piezoelectric and/or electrostrictive characteristics such as the displacement amount, and the resonance frequency characteristics.
    • 压电和/或电致伸缩膜型元件包括具有薄壁隔膜部分的氧化锆基底,其整体地设置成覆盖和闭合窗口以用作中空空间;以及膜状压电和/或电致伸缩操作部分,其由 根据成膜方法在隔膜部分的外表面上依次设置成层状构造的下电极,压电和/或电致伸缩层和上电极,其中至少一部分周缘 压电和/或电致伸缩层的一部分横向延伸超过下电极的相应的周缘部分,以构成相对于隔膜部分设置的伸出部分,并且伸出部分处于与部分区域不完全连接的状态 通过氧化铝 - 氧化镁化合物的颗粒正好在其下的隔膜部分 允许尖晶石颗粒介入其间。 因此,可以有效地改善例如位移量和谐振频率特性等压电和/或电致伸缩特性。
    • 45. 发明授权
    • Display device
    • 显示设备
    • US07444052B2
    • 2008-10-28
    • US11083358
    • 2005-03-17
    • Kenichi IwauchiKei TokuiYukihisa TakeuchiTsutomu NanatakiNatsumi ShimogawaIsao Shikata
    • Kenichi IwauchiKei TokuiYukihisa TakeuchiTsutomu NanatakiNatsumi ShimogawaIsao Shikata
    • G02B6/04G02B26/00
    • G02B6/0033
    • A display device includes an illuminating device having an optical waveguide plate for introducing light thereinto, a drive assembly having a planar array of actuators disposed in facing relation to the optical waveguide plate, a displacement transmitter assembly disposed between the optical waveguide plate and the drive assembly, and a light scattering layer disposed on the displacement transmitter assembly. The actuators are selectively displaceable to bring the light scattering layer into and out of contact with the optical waveguide plate, for controlling light that leaks from the optical waveguide plate as emitted light. The display device also includes an optical modulator for modulating the emitted light from the illuminating device to display an image. The illuminating device has a light reflecting layer disposed on at least a portion of the displacement transmitter assembly that confronts the optical waveguide plate.
    • 一种显示装置,包括具有用于引入光的光波导板的照明装置,具有与光波导板相对设置的致动器的平面阵列的驱动组件,设置在光波导板和驱动组件之间的位移传感器组件 以及设置在位移发射器组件上的光散射层。 致动器可选择性地移位以使光散射层进入和离开与光波导板接触,用于控制作为发射光从光波导板泄漏的光。 显示装置还包括用于调制来自照明装置的发射光以显示图像的光调制器。 照明装置具有设置在与光波导板相对的位移发射器组件的至少一部分上的光反射层。