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    Acoustic transducer with prestressed ring
    1.
    发明申请
    Acoustic transducer with prestressed ring 有权
    具有预应力环的声学传感器

    公开(公告)号：US20040256962A1

    公开(公告)日：2004-12-23

    申请号：US10481429

    申请日：2004-08-23

    发明人： Gerard Roux ,  Gilles Lubrano ,  Vito Suppa

    IPC分类号： H01L041/04 ,  H01L041/08

    CPC分类号： B06B1/0655

    摘要： The invention relates to acoustic transducers which comprise a ceramic ring formed from a pre-stressed set of segments. It consists in using, as screws for tightening pre-stressing wedges, screws with hexagonal heads and in placing on the inner face of these wedges a plate provided with recesses in which the cants of these screw heads become anchored. This plate comprises transverse channels allowing the passage of the power supply wires for the sectors. The central screw is removed after the desired pre-stressing has been obtained. It makes it possible to improve the manufacture of these transducers.

    摘要翻译： 本发明涉及声换能器，其包括由预应力组段形成的陶瓷环。 它包括使用用于紧固预应力楔的螺钉，具有六角头的螺钉，并且在这些楔的内表面上放置设有凹槽的板，这些螺钉头的槽被锚固在该凹槽中。 该板包括允许扇区的电源线通过的横向通道。 在获得所需的预应力之后，中心螺丝被去除。 它可以改进这些传感器的制造。

    Piezoelectric actuator
    2.
    发明申请
    Piezoelectric actuator 有权
    压电执行器

    公开(公告)号：US20040251771A1

    公开(公告)日：2004-12-16

    申请号：US10480519

    申请日：2004-07-08

    发明人： Andrew Nicholas Dames

    IPC分类号： H01L041/04

    CPC分类号： G02B6/3578 ,  G02B6/32 ,  G02B6/3502 ,  G02B6/4226 ,  H01L41/0471 ,  H01L41/0835 ,  H01L41/0966

    摘要： An actuator comprises a laminate of interleaved layers of electrode plates and piezoelectric material; wherein an upper region (in use) of electrode plates is adapted when energised to effect deflections in up and down directions; a lower region of electrode plates is adapted when energised to effect deflections in up and down directions; and one or more further regions of electrode plates are adapted when energised to effect deflections in left and right directions.

    摘要翻译： 致动器包括电极板和压电材料的交错层的叠层; 其中电极板的上部区域（正在使用中）通电时适应上下方向的偏转; 当通电时，电极板的下部区域适于在上下方向上实现偏转; 并且电极板的一个或多个其它区域被适配以在左右方向上产生挠曲。

    Lamination-type piezoelectric element and manufacturing method thereof
    3.
    发明申请
    Lamination-type piezoelectric element and manufacturing method thereof 失效
    层压型压电元件及其制造方法

    公开(公告)号：US20040183396A1

    公开(公告)日：2004-09-23

    申请号：US10770405

    申请日：2004-02-04

    申请人： Denso Corporation

    发明人： Akio Iwase ,  Tetuji Itou ,  Toshio Ooshima ,  Shige Kadotani

    IPC分类号： H02N002/00 ,  H01L041/04

    CPC分类号： H01L41/0833 ,  B23K26/0823 ,  B23K26/40 ,  B23K2103/52 ,  H01L41/0472 ,  H01L41/293 ,  H01L41/339 ,  Y10T29/42 ,  Y10T29/43 ,  Y10T29/435 ,  Y10T29/49005 ,  Y10T29/49126 ,  Y10T29/49128 ,  Y10T29/49155

    摘要： A lamination-type piezoelectric element (1) comprises: a ceramic laminated body (10) in which ceramic layers and inner electrode layers (12) are alternately laminated on each other; and a pair of outer electrodes (18) respectively joined to a pair of joining faces (15) formed on an outer circumferential face of the ceramic laminated body (10). A belt-shaped outer circumferential groove portion (120) coming into contact with an outer circumferential end portion (127) of at least some part of the inner electrode layers (12) is formed on the outer circumferential face of the ceramic laminated body (10). This outer circumferential groove portion (120) has at least one dent portion (121) protruding from the adjoining portion. The outer circumferential groove portion (120) has at least one of an insulating portion (181) made of insulating material and a conductive portion (183) made of conductive material.

    摘要翻译： 层压型压电元件（1）包括：陶瓷层叠体（10），陶瓷层和内部电极层（12）彼此交替层叠; 以及分别与形成在陶瓷层叠体（10）的外周面上的一对接合面（15）接合的一对外部电极（18）。 在陶瓷层叠体（10）的外周面上形成有与内部电极层（12）的至少一部分的外周端部（127）接触的带状的外周侧槽部（120） ）。 该外周槽部（120）具有从邻接部突出的至少一个凹部（121）。 外周槽部（120）具有由绝缘材料构成的绝缘部（181）和由导电性材料制成的导电部（183）中的至少一方。

    Film bulk acoustic resonator filter
    4.
    发明申请
    Film bulk acoustic resonator filter 有权
    薄膜体声波谐振滤波器

    公开(公告)号：US20040150295A1

    公开(公告)日：2004-08-05

    申请号：US10718799

    申请日：2003-11-24

    申请人： TDK CORPORATION

    发明人： Eiju Komuro ,  Masaaki Imura ,  Qingxin Su ,  Paul B. Kirby ,  Roger W. Whatmore

    IPC分类号： H01L041/04

    CPC分类号： H03H3/04 ,  H03H9/174 ,  H03H9/568

    摘要： A ladder-type film bulk acoustic resonator (FBAR) filter comprises two series FBARs and two parallel FBARs. Each FBAR has a top electrode, a bottom electrode, and a piezoelectric layer sandwiched between the top and bottom electrodes. The top electrodes of the two series FBARs form part of a signal line of a coplanar waveguide transmission line. The top electrodes of the two series FBARs are connected to associated circuitry. The two series FBARs have a common bottom electrode.

    摘要翻译： 梯形薄膜体声波谐振器（FBAR）滤波器包括两个串联FBAR和两个并联FBAR。 每个FBAR具有顶部电极，底部电极和夹在顶部和底部电极之间的压电层。 两个串联FBAR的顶部电极形成共面波导传输线的信号线的一部分。 两个串联FBAR的顶部电极连接到相关电路。 两个串联FBAR有一个共同的底部电极。

    Actuator and method of manufacturing a strain element
    5.
    发明申请
    Actuator and method of manufacturing a strain element 失效

    公开(公告)号：US20040135475A1

    公开(公告)日：2004-07-15

    申请号：US10750837

    申请日：2004-01-05

    发明人： Nobuaki Omata ,  Atsushi Irie

    IPC分类号： H01L041/04

    CPC分类号： H01L41/33 ,  B60G2202/424 ,  H01L41/09 ,  H01L41/0993 ,  H02N2/10 ,  Y10T29/42 ,  Y10T29/49103 ,  Y10T29/49155

    摘要： There is provided a small and inexpensive actuator which has a simple structure and can obtain a large displacement. When voltage is applied to electrodes 2a and 2b formed on an inner circumferential surface and an outer circumferential surface of a piezoelectric ceramic 1 wound like a coil, deformation occurs in such a direction that an inner circumferential side of the piezoelectric ceramic 1 wound like the coil is contracted, and an outer circumferential side is expanded. Accordingly, if one end portion of the piezoelectric ceramic 1 formed into the coil shape is fixed, the other end portion is rotated in accordance with the deformation of contracting the diameter of this coil.

    Acoustic matching layer, ultrasonic transmitter/receiver, and ultrasonic flowmeter
    6.
    发明申请
    Acoustic matching layer, ultrasonic transmitter/receiver, and ultrasonic flowmeter 有权
    声学匹配层，超声波发射器/接收器和超声波流量计

    公开(公告)号：US20040124746A1

    公开(公告)日：2004-07-01

    申请号：US10475373

    申请日：2003-10-20

    发明人： Masaaki Suzuki ,  Takashi Hashida ,  Kazuhiko Hashimoto ,  Masahiko Hashimoto ,  Hidetomo Nagahara ,  Seigo Shiraishi ,  Norihisa Takahara

    IPC分类号： H02N002/00 ,  H01L041/04 ,  H01L041/08 ,  H01L041/18

    CPC分类号： G01F1/662 ,  G10K11/02

    摘要： An acoustic matching layer 1 according to the present invention includes a first acoustic matching layer 2, which has a low density and a low sonic velocity, and a second acoustic matching layer 3, which has a higher density and a higher sonic velocity. The first acoustic matching layer 2, of which the acoustic impedance is matched to that of a medium into an ultrasonic wave is radiated, is provided closer to the medium, while the second acoustic matching layer 3 is provided closer to a piezoelectric layer, thereby increasing the sensitivity of an ultrasonic transducer.

    摘要翻译： 根据本发明的声匹配层1包括具有低密度和低声速的第一声匹配层2和具有较高密度和较高声速的第二声匹配层3。 将声阻抗与介质相匹配的第一声匹配层2放射到超声波中被提供得更靠近介质，而第二声匹配层3设置得更靠近压电层，从而增加 超声波传感器的灵敏度。

    Piezoelectric device and cover sealing method and apparatus therefor, cellular phone apparatus using piezoelectric device and electronic apparatus using piezoelectric device
    7.
    发明申请
    Piezoelectric device and cover sealing method and apparatus therefor, cellular phone apparatus using piezoelectric device and electronic apparatus using piezoelectric device 有权
    压电器件及其密封方法及其设备，使用压电器件的蜂窝电话设备和使用压电器件的电子设备

    公开(公告)号：US20040104643A1

    公开(公告)日：2004-06-03

    申请号：US10382840

    申请日：2003-03-07

    申请人： SEIKO EPSON CORPORATION

    发明人： Osamu Kawauchi ,  Kenji Sakurai ,  Kenichiro Murata

    IPC分类号： H02N002/00 ,  H01L041/04 ,  H01L041/08 ,  H01L041/18

    CPC分类号： H03H9/21 ,  H03H3/02 ,  H03H9/1021 ,  H03H2003/026

    摘要： To provide a method of sealing piezoelectric devices with covers capable of rapidly and securely sealing a plurality of packages or many packages of piezoelectric devices with covers. A piezoelectric device includes a package 36 in which a piezoelectric vibrating reed is partially supported and fixed, and a cover 39 fixed to the packages 36. In a method of sealing the packages with the covers, a plurality of the packages are arranged with the bottoms facing halogen lamps, so that the bottoms are irradiated with the light beams L3 from the halogen lamps to thermally melt a brazing material 33 disposed between the packages and the covers.

    摘要翻译： 提供一种用能够快速且可靠地密封多个封装的封装的压电器件或具有盖的多个压电器件封装的方法。 一种压电装置包括其中部分地支撑和固定压电振动片的封装36以及固定到封装36上的盖39.在用封盖密封封装件的方法中，多个封装件布置有底部 从而使来自卤素灯的光束L3照射底部以热熔融设置在包装和盖之间的钎焊材料33。

    Surface acoustic wave identification tag having an interdigital transducer adapted for code discrimination and methods of operation and manufacture thereof
    9.
    发明申请
    Surface acoustic wave identification tag having an interdigital transducer adapted for code discrimination and methods of operation and manufacture thereof 有权
    具有适于代码识别的叉指式换能器的表面声波识别标签及其操作和制造方法

    公开(公告)号：US20040075361A1

    公开(公告)日：2004-04-22

    申请号：US10274299

    申请日：2002-10-18

    申请人： RF SAW Components, Incorporated

    发明人： Clinton S. Hartmann

    IPC分类号： H02N002/00 ,  H01L041/04

    CPC分类号： G06K19/0675 ,  G06K19/067 ,  H03H9/6406 ,  Y10T29/42

    摘要： A surface acoustic wave (SAW) identification tag having a coded transducer and methods of operating and manufacturing the tag. In one embodiment the tag includes: (1) a piezoelectric substrate having a number of reflectors distributed among a group of slots arranged by both pulse position and phase position on the substrate for encoding a number by pulse and phase position; and (2) a SAW transducer located on the substrate for generating a coded interrogation pulse.

    摘要翻译： 具有编码换能器的表面声波（SAW）识别标签和操作和制造标签的方法。 在一个实施例中，标签包括：（1）压电基板，其具有分布在基板上的脉冲位置和相位位置之间排列的一组槽中的多个反射器，用于按脉冲和相位位置对数进行编码; 和（2）位于基板上的用于产生编码询问脉冲的SAW换能器。