利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

72 条记录 (耗时 0.025 秒)

    ELASTIC WAVE APPARATUS
    3.
    发明申请
    ELASTIC WAVE APPARATUS 审中-公开

    公开(公告)号：US20170279432A1

    公开(公告)日：2017-09-28

    申请号：US15622176

    申请日：2017-06-14

    申请人： Murata Manufacturing Co., Ltd.

    发明人： Tomohiko MURASE

    IPC分类号： H03H9/145 ,  H03H9/54 ,  H03H9/25 ,  H03H9/15 ,  H03H9/09 ,  H03H9/64

    CPC分类号： H03H9/145 ,  H03H9/09 ,  H03H9/15 ,  H03H9/25 ,  H03H9/54 ,  H03H9/64 ,  H03H9/6483

    摘要： An elastic wave apparatus includes a piezoelectric substrate, an IDT electrode on the piezoelectric substrate and includes first electrode fingers, second electrode fingers, a first busbar, and a second busbar, a capacitive electrode including third electrode fingers, fourth electrode fingers, a third busbar, and a fourth busbar, an insulating film laminated on the capacitive electrode, a first wiring line including a first portion facing the capacitive electrode via the insulating film, and a second wiring line that connects the first busbar and the third busbar. The capacitive electrode extends in a lateral direction with respect to the IDT electrode in a surface acoustic wave propagation direction.

    Piezoelectric stack transducer
    7.
    发明授权
    Piezoelectric stack transducer 有权
    压电叠层传感器

    公开(公告)号：US09491550B2

    公开(公告)日：2016-11-08

    申请号：US14100299

    申请日：2013-12-09

    申请人： Foundation of Soongsil University-Industry Cooperation

    发明人： Jin Oh Kim ,  Dae Jong Kim

    IPC分类号： H03H9/15 ,  H04R17/10 ,  H04R1/24

    CPC分类号： H04R17/10 ,  H03H9/15 ,  H04R1/24

    摘要： Provided is a piezoelectric stack transducer. In a transducer portion, a plurality of piezoelectric transducers which output maximum amplitude at different frequencies are continuously stacked. A stacked electrode portion is provided on both surfaces of each of the plurality of continuously stacked piezoelectric transducers and supplies an electric signal so that vibration is generated. In this case, the plurality of piezoelectric transducers have different diameters. According to the present invention, it is possible to implement a piezoelectric stack transducer which exhibits constant amplitude (output) at different frequencies by piezoelectric transducers exhibiting different amplitudes at respective frequencies according to natural frequencies supplementing amplitude of a different piezoelectric transducer.

    摘要翻译： 提供了一种压电叠层传感器。 在换能器部分中，以不同频率输出最大振幅的多个压电换能器被连续堆叠。 在多个连续堆叠的压电换能器的每一个的两个表面上设置堆叠的电极部分，并且提供电信号以产生振动。 在这种情况下，多个压电换能器具有不同的直径。 根据本发明，可以实现按照补偿不同压电换能器的振幅的固有频率，在各个频率下呈现不同振幅的压电换能器在不同频率下呈现恒定振幅（输出）的压电叠层换能器。

    Piezoelectric vibrating piece and piezoelectric device
    8.
    发明授权
    Piezoelectric vibrating piece and piezoelectric device 有权
    压电振动片和压电器件

    公开(公告)号：US08946975B2

    公开(公告)日：2015-02-03

    申请号：US13662537

    申请日：2012-10-28

    申请人： Nihon Dempa Kogyo Co., Ltd.

    发明人： Takumi Ariji ,  Takehiro Takahashi

    IPC分类号： H01L41/053 ,  H03H9/02 ,  H03H9/15

    CPC分类号： H03H9/02 ,  H03H9/1021 ,  H03H9/15 ,  H03H9/177

    摘要： A piezoelectric vibrating piece includes an excitation unit in a rectangular shape, a framing portion, and a connecting portion. The excitation unit includes two principal surfaces, a pair of excitation electrodes on the principal surfaces, a first side extending in a first direction, and a second side extending in a second direction. The second side is longer than the first side, and is perpendicular to the first direction. The framing portion surrounds the excitation unit. The connecting portion connects the excitation unit to the framing portion. The connecting portion has a third side which is connected to the first side and extends in the first direction and a fourth side which is connected to the framing portion and extends in the first direction. A thickness of the connecting portion is thinner than that of the framing portion. The third side has a different length from that of the fourth side.

    摘要翻译： 压电振动片包括矩形的激励单元，框架部分和连接部分。 激励单元包括两个主表面，主表面上的一对激励电极，沿第一方向延伸的第一侧和沿第二方向延伸的第二侧。 第二侧比第一侧长，并且与第一方向垂直。 框架部分围绕激励单元。 连接部分将激励单元连接到框架部分。 连接部分具有连接到第一侧并沿着第一方向延伸的第三侧和连接到框架部分并沿着第一方向延伸的第四侧。 连接部分的厚度比框架部分的厚度薄。 第三面具有与第四面不同的长度。

    OSCILLATION PIECE, OSCILLATOR, ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOBILE OBJECT
    9.
    发明申请
    OSCILLATION PIECE, OSCILLATOR, ELECTRONIC DEVICE, ELECTRONIC APPARATUS, AND MOBILE OBJECT 有权
    振荡片，振荡器，电子设备，电子设备和移动对象

    公开(公告)号：US20140015381A1

    公开(公告)日：2014-01-16

    申请号：US13936570

    申请日：2013-07-08

    申请人： Seiko Epson Corporation

    发明人： Masayuki Kikushima

    IPC分类号： H01L41/04

    CPC分类号： H01L41/04 ,  G01L1/162 ,  G01L9/0022 ,  H03H9/15 ,  H03H9/2473

    摘要： An oscillation piece includes a first oscillation arm and a second oscillation arm, a first base that connects ends of the first oscillation arm and the second oscillation arm on one side to each other and a second base that connects ends of the first oscillation arm and the second oscillation arm on the other side to each other, and weight films provided on each of the first oscillation arm and the second oscillation arm. The drive electrodes are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is maximized, and the weight films are disposed in positions where the amount of distortion produced in the first oscillation arm and the second oscillation arm is minimized. The oscillation frequency of the oscillation piece can be precisely adjusted by removing part of the weight films.

    摘要翻译： 振荡片包括第一振荡臂和第二振荡臂，将第一振荡臂和第二振荡臂的一端彼此一体地连接的第一基座和连接第一振荡臂的端部和第二振荡臂的第二基座 第二振荡臂彼此相对，并且配重膜设置在第一振荡臂和第二振荡臂中的每一个上。 驱动电极设置在第一振荡臂和第二振荡臂中产生的变形量最大的位置，并且配重膜设置在第一振荡臂和第二振荡臂中产生的变形量的位置 被最小化。 可以通过去除部分重量膜来精确地调节振动片的振荡频率。

    PIEZOELECTRIC DEVICE
    10.
    发明申请
    PIEZOELECTRIC DEVICE 审中-公开
    压电器件

    公开(公告)号：US20130264910A1

    公开(公告)日：2013-10-10

    申请号：US13845079

    申请日：2013-03-17

    申请人： NIHON DEMPA KOGYO CO., LTD.

    发明人： TAKEHIRO TAKAHASHI

    IPC分类号： H01L41/053

    CPC分类号： H01L41/053 ,  H03H9/1021 ,  H03H9/15

    摘要： A surface mount piezoelectric device with a piezoelectric vibrating piece to be mounted on a surface of a printed circuit board includes a base substrate, a groove, and at least a pair of mounting terminals. The base substrate is formed of an insulating material. The base substrate includes a mounting surface to be mounted on the printed circuit board. The groove is formed on at least a part of a periphery of the mounting terminal. The groove has a bottom surface and a side surface. The side surface extends from the bottom surface to the mounting surface. The pair of mounting terminals are formed on the mounting surface and the side surface.

    摘要翻译： 具有安装在印刷电路板的表面上的压电振动片的表面贴装式压电元件包括​​基底基板，凹槽和至少一对安装端子。 基底由绝缘材料形成。 基底基板包括安装在印刷电路板上的安装表面。 该槽形成在安装端子的周边的至少一部分上。 凹槽具有底表面和侧表面。 侧表面从底表面延伸到安装表面。 一对安装端子形成在安装面和侧面上。