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    • 1. 发明授权
    • Piezoelectric diaphragm and piezoelectric electroacoustic transducer using the same
    • 压电膜片和压电电声换能器使用相同
    • US07067959B2
    • 2006-06-27
    • US10680572
    • 2003-10-07
    • Tetsuo TakeshimaKiyotaka TajimaYuji Kosugi
    • Tetsuo TakeshimaKiyotaka TajimaYuji Kosugi
    • H01L41/08
    • H04R17/00H01L41/083H01L41/0973
    • A piezoelectric diaphragm has principal-surface electrodes formed on upper and lower principal surfaces of a multilayer ceramic body. An internal electrode is disposed in an interface between adjacent piezoelectric ceramic layers. The upper and lower principal surfaces of the multilayer ceramic body are substantially entirely covered with a resin layer. A first cutout is formed in a side-edge portion, along the first side surface electrode, of the upper resin layer such that the upper principal-surface electrode is partially exposed in the first cutout. A second cutout is formed in a side-edge portion, along the first side surface electrode, of the lower resin layer such that the lower principal-surface electrode is partially exposed in the second cutout. The locations of the first and second cutouts formed in the upper and lower resin layers, respectively, are selected such that they do not oppose each other.
    • 压电隔膜具有形成在多层陶瓷体的上主表面和下主表面上的主表面电极。 内部电极设置在相邻的压电陶瓷层之间的界面中。 多层陶瓷体的上下主面基本上全部被树脂层覆盖。 第一切口形成在上树脂层的沿着第一侧面电极的侧边缘部分中,使得上主表面电极在第一切口中部分地露出。 第二切口形成在下树脂层的沿着第一侧表面电极的侧边缘部分中,使得下主表面电极在第二切口中部分地露出。 分别在上下树脂层中形成的第一和第二切口的位置被选择为使得它们彼此不相对。
    • 4. 发明授权
    • Piezoelectric component
    • 压电元件
    • US5925974A
    • 1999-07-20
    • US846287
    • 1997-04-30
    • Takashi YamamotoShigemasa KusabirakiToshihiko UnamiHirohide YoshinoTetsuo Takeshima
    • Takashi YamamotoShigemasa KusabirakiToshihiko UnamiHirohide YoshinoTetsuo Takeshima
    • H03H9/17H03H9/05H03H9/58H03H9/60H01L41/08
    • H03H9/178H03H9/0514H03H9/605
    • A piezoelectric component has a substantially stronger connection between a substrate and a piezoelectric resonator and has improved electrical reliability. The piezoelectric resonator includes an insulating substrate having pattern electrodes disposed therein. A piezoelectric resonator capable of vibrating, for example in a longitudinal vibration mode is mounted on the substrate. A supporting member prepared separately as a pre-formed material member is bonded to the piezoelectric resonator at a nodal point of the resonator. A first flat surface of the supporting member is bonded to a vibrating electrode on the piezoelectric resonator by a first bonding and supporting material while a second flat surface of the supporting member is bonded to one of the pattern electrodes on the substrate by a second bonding and supporting material. The length of bonding between the piezoelectric resonator and the first bonding and supporting material along the longitudinal direction of the piezoelectric resonator is preferably set to about 25% or less of the overall length of the piezoelectric resonator. A central portion of another vibrating electrode of the piezoelectric resonator is connected to the other pattern electrode on the substrate by a conductor wire.
    • 压电元件在基板和压电谐振器之间具有更强的连接,并具有改善的电可靠性。 压电谐振器包括其中布置有图案电极的绝缘基板。 能够振动的压电谐振器例如以纵向振动模式安装在基板上。 作为预成型材料部件单独制备的支撑部件在谐振器的节点处接合到压电谐振器。 支撑构件的第一平坦表面通过第一接合和支撑材料结合到压电谐振器上的振动电极,而支撑构件的第二平坦表面通过第二接合结合到衬底上的一个图案电极,并且 配套材料 沿着压电谐振器的纵向方向的压电谐振器与第一接合和支撑材料之间的键合长度优选设定为压电谐振器的总长度的约25%或更小。 压电谐振器的另一个振动电极的中心部分通过导线连接到衬底上的另一个图案电极。
    • 6. 发明授权
    • Piezoelectric electroacoustic transducer
    • 压电式电声换能器
    • US07141919B1
    • 2006-11-28
    • US10435550
    • 2003-05-12
    • Kazuaki HamadaTetsuo TakeshimaManabu SumitaKeiichi KamiMitsunori Ishimasa
    • Kazuaki HamadaTetsuo TakeshimaManabu SumitaKeiichi KamiMitsunori Ishimasa
    • H04R17/00H01L41/04
    • H04R31/003H04R17/00H04R2307/023
    • A piezoelectric electroacoustic transducer includes a piezoelectric sounding body in which bending vibration is generated by applying an alternating signal between two electrodes, a case housing the piezoelectric sounding body, and a pair of terminals insert-molded in the case. In the piezoelectric electroacoustic transducer, internal connection portions of the pair of terminals are exposed on the inside surface of the side wall portion of the case so as to extend in a direction that is substantially perpendicular relative to the piezoelectric sounding body, and the internal connection portions of the terminals are electrically connected to the electrodes of the piezoelectric sounding body by using conductive adhesive. The internal connection portions of the terminals do not largely extend inside the case and accordingly, the dimensional difference between the case and the piezoelectric sounding body is minimized.
    • 压电式电声换能器包括:压电发声体,其中通过在两个电极之间施加交变信号产生弯曲振动,容纳压电发声体的壳体和嵌入成型在壳体中的一对端子。 在压电电声换能器中,一对端子的内部连接部分暴露在壳体的侧壁部分的内表面上,以便在相对于压电发声体基本上垂直的方向上延伸,并且内部连接 端子的部分通过使用导电粘合剂电连接到压电发声体的电极。 端子的内部连接部分在壳体内部没有大的延伸,因此壳体和压电发声体之间的尺寸差最小化。
    • 7. 发明申请
    • Case with insert terminal and piezoelectric electroacoustic transducer using this case, process for manufacturing case with insert terminal
    • 使用这种情况的插入端子和压电电声换能器的情况,用插入端子制造壳体的过程
    • US20060193107A1
    • 2006-08-31
    • US10564219
    • 2004-07-15
    • Keiichi KamiMitsunori IshimasaTetsuo TakeshimaManabu Sumita
    • Keiichi KamiMitsunori IshimasaTetsuo TakeshimaManabu Sumita
    • H02B1/00
    • H04R31/006H04R1/06H04R17/00
    • An insert terminal containing case includes a bottom wall, four side walls, and an opening at the upper portion, wherein a terminal made of a metal plate is vertically fixed to at least one of the four side walls by insert molding. A groove is vertically arranged at the outer side surface of the side wall fixing the terminal, the groove extending downward, the outer side surface of the terminal is partially exposed at the groove, and the inner side surface opposite the outer side surface of the terminal exposed at the groove is partially exposed at the inner side surface of the side wall. Therefore, when the terminal is provided in the case by insert molding, molding can be performed only using upper and lower dies. Furthermore, the terminal can be reliably exposed at the inner surface of the side wall. The insert terminal containing case has the minimum difference between the opening dimension of the case and the dimension of a piezoelectric diaphragm and is molded without using a sliding die.
    • 插入式端子容纳壳体包括底壁,四个侧壁和在上部的开口,其中由金属板制成的端子通过嵌入成型垂直地固定到四个侧壁中的至少一个。 在固定端子的侧壁的外侧表面上垂直设置有槽,槽向下延伸,端子的外侧表面部分地暴露在槽处,并且与端子的外侧表面相对的内侧表面 在侧壁露出的部分露出在侧壁的内侧面。 因此,当通过插入成型将端子设置在壳体中时,可以仅使用上模具和下模具进行模制。 此外,端子可以可靠地暴露在侧壁的内表面。 插入式端子容纳盒在壳体的开口尺寸和压电膜片的尺寸之间具有最小的差异,并且在不使用滑动模具的情况下被模制。
    • 9. 发明授权
    • Ladder filter with piezoelectric resonators each having a plurality of
layers with internal electrodes
    • 具有压电谐振器的梯形滤波器,每个具有多个具有内部电极的层
    • US5825262A
    • 1998-10-20
    • US846296
    • 1997-04-30
    • Jiro InoueToshihiko UnamiTetsuo Takeshima
    • Jiro InoueToshihiko UnamiTetsuo Takeshima
    • H03H9/17H01L41/083H03H20060101H03H9/10H03H9/125H03H9/15H03H9/205H03H9/54H03H9/58H03H9/60
    • H03H9/178H03H9/605
    • A ladder type filter achieves a substantial reduction in distortion in filtering characteristics. The ladder type filter includes a supporting substrate formed of an insulating material. Supporting members are attached to lands which are formed by portions of pattern electrodes disposed on the supporting substrate. A plurality of piezoelectric resonators are mounted on the supporting members and connected in a ladder arrangement to define a ladder type filter. Each piezoelectric resonator has a base member in which piezoelectric layers and internal electrodes are laminated. External electrodes formed on one side surface of the base member are connected to the internal electrodes disposed in the base member. The width w and the thickness t of the piezoelectric resonators and the number n of laminated layers each comprising one of the piezoelectric layers and one of the internal electrodes disposed adjacent to the corresponding piezoelectric layer are selected so as to satisfy 1.ltoreq.log.sub.10 (n.sup.2 wt).ltoreq.3.
    • 梯形滤波器实现滤波特性的失真的显着降低。 梯型过滤器包括由绝缘材料形成的支撑衬底。 支撑构件附接到由设置在支撑基板上的图案电极的部分形成的平台。 多个压电谐振器安装在支撑构件上并且以梯形结构连接以限定梯形滤波器。 每个压电谐振器具有层压压电层和内部电极的基底部件。 形成在基体的一个侧表面上的外部电极连接到设置在基底构件中的内部电极。 选择压电谐振器的宽度w和厚度t以及每个包括一个压电层和与相应的压电层相邻布置的一个内部电极的层压层的数量n,使得满足1≤log10( n2wt)