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    • 91. 发明申请
    • Piezoelectric actuator
    • 压电执行器
    • US20060159295A1
    • 2006-07-20
    • US10562578
    • 2004-12-03
    • Yasuharu OnishiYasuhiro SasakiNozomi Toki
    • Yasuharu OnishiYasuhiro SasakiNozomi Toki
    • H04R25/00
    • H04R17/00
    • A piezo-electric actuator is provided which is capable of providing large vibration amplitude, is adjustable for resonance frequency, and has high reliability while avoiding an increase in outer dimensions. A piezo-electric actuator comprising: piezo-electric element la having piezo-electric body 3a which is provided with at least two opposing surfaces, wherein the surfaces perform an expanding and contracting motion in accordance with the state of an electric field; a constraint member 21a for constraining piezo-electric element 1a on at least one of the two surfaces, a supporting member disposed around constraint member 21a, and a plurality of beam members 22a each having both ends fixed to constraint member 21a and supporting member 4a, respectively, wherein each beam member has a neutral axis for bending in a direction substantially parallel with the constrained surface, wherein the constraint member vibrates by vibration which is generated by the constraining effect between the constraint member and the piezo-electric element, and is amplified by the beam members.
    • 提供了一种压电致动器,其能够提供大的振动幅度,对于谐振频率是可调节的,并且具有高的可靠性,同时避免了外部尺寸的增加。 一种压电致动器,包括:具有压电体3a的压电元件1a,其具有至少两个相对的表面,其中所述表面根据电场的状态执行膨胀和收缩运动; 用于将压电元件1a约束在两个表面中的至少一个上的约束构件21a,设置在约束构件21a周围的支撑构件和多个梁构件22a,每个梁构件的两端固定到约束构件21a 和支撑构件4a,其中每个梁构件具有用于在与约束表面基本平行的方向上弯曲的中性轴线,其中约束构件通过由约束构件和压电构件之间的约束效应产生的振动振动, 电元件,并被梁构件放大。
    • 94. 发明授权
    • Method of separating a solid-liquid mixture by wringing a twisted filter
belt enclosing the mixture
    • 通过拧紧围绕混合物的扭转过滤带分离固体 - 液体混合物的方法
    • US5520824A
    • 1996-05-28
    • US524326
    • 1995-09-06
    • Yasuhiro Sasaki
    • Yasuhiro Sasaki
    • B01D33/04B30B9/24B67D7/76B01D33/64
    • B30B9/245B01D33/04
    • The solid content and liquid content in a solid-liquid substance can be separated continuously at a high solid-liquid separation ratio by: causing a looped filter cloth member to travel, the filter cloth member being wound at least once around a wringing roller, and having a twisted portion at which the filter cloth member is twisted at least once and wound around the wringing roller; inducing a primary rotary motion of the wringing roller in a direction in which the filter cloth member travels; inducing secondary rotary motion of the wringing roller in a direction in which the filter cloth member is twisted upstream with respect to the wringing roller; and supplying a solid-liquid substance to an upstream portion of the filter cloth member with respect to the wringing roller.
    • 固体液体中的固体含量和液体含量可以通过以下方式以高固液分离比连续分离:使环状滤布部件行进,滤布部件至少卷绕在缠绕辊周围,并且 具有扭曲部分,滤布构件在该扭转部分处被扭曲至少一次并缠绕在缠绕辊上; 引起所述拧紧辊沿着所述滤布部件移动的方向的一次旋转运动; 引起所述拧紧辊在所述滤布构件相对于所述拧紧辊上游的方向上的二次旋转运动; 并且相对于所述拧紧辊将固体物质供给到所述滤布构件的上游部。
    • 98. 发明授权
    • Piezoelectric actuator and electronic device
    • 压电执行器和电子设备
    • US08680746B2
    • 2014-03-25
    • US12601485
    • 2008-05-21
    • Masatake TakahashiYasuhiro SasakiYasuharu Onishi
    • Masatake TakahashiYasuhiro SasakiYasuharu Onishi
    • B06B1/06
    • B06B1/0603H04R17/00
    • Provided is a small-size thin piezoelectric actuator which can be mounted on a mobile electronic device and operate with a low power consumption also provided is an electronic device which uses the piezoelectric actuator to provide a function to give a contact feeling of a three dimensional movement to a users hand palm. The piezoelectric actuator (1) includes: a piezoelectric ceramic oscillator having a piezoelectric ceramic thin plate (5) bonded to at least one surface of a shim member (6); at least one holder (7) for holding the shim member (6); and a sheet-shaped elastic body (2). Vibration generated by the piezoelectric ceramic oscillator is transmitted via the holder (7) and the sheet-shaped elastic body (2) to a case (3) of the electronic device.
    • 提供一种小型薄型压电致动器,其可以安装在移动电子设备上并且以低功耗操作,还提供了使用压电致动器来提供三维运动的接触感的功能的电子设备 给用户手掌。 压电致动器(1)包括:压电陶瓷振荡器,其具有结合到垫片(6)的至少一个表面的压电陶瓷薄板(5) 至少一个用于保持垫片构件(6)的保持器(7); 和片状弹性体(2)。 由压电陶瓷振荡器产生的振动通过保持器(7)和片状弹性体(2)传递到电子设备的壳体(3)。
    • 99. 发明授权
    • Piezoelectric actuator and electronic device
    • 压电执行器和电子设备
    • US08670578B2
    • 2014-03-11
    • US12735995
    • 2009-03-05
    • Yasuharu OnishiMasatake TakahashiYasuhiro SasakiShigeo Satou
    • Yasuharu OnishiMasatake TakahashiYasuhiro SasakiShigeo Satou
    • H04R25/00H04R3/00
    • B06B1/0603H01L41/0973
    • A piezoelectric actuator 60 includes a piezoelectric element 10 expanding and contracting according to a state of an electric field, a pedestal 20, a vibration film 30, and a support member. In the vibration mode of the divided vibration occurring in the piezoelectric actuator in a high frequency band, one or more reinforcement members 50 are selectively disposed on an upper surface or a lower surface of the piezoelectric element 10, in a region where a node of divided vibration occurs. With such configurations, the vibration mode can be changed in the piezoelectric element 10. Therefore, in the frequency sound pressure level characteristics, the divided vibration causing hills or valleys (peaks or dips) can be effectively suppressed, thus enabling the achievement of flatness of frequency sound pressure level characteristics and of reproduction of excellent sound.
    • 压电致动器60包括根据电场的状态膨胀和收缩的压电元件10,基座20,振动膜30和支撑构件。 在高频带的压电致动器中发生的分割振动的振动模式中,在压电元件10的上表面或下表面上选择性地设置一个或多个加强构件50,在分割的节点 发生振动。 通过这样的结构,可以在压电元件10中改变振动模式。因此,在频率声压级特性中,可以有效地抑制引起山丘或谷(峰值或下降)的分割振动,从而能够实现平坦度 频率声压级特性和再现优良的声音。