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    • 4. 发明授权
    • Three-terminal filter using area flexural vibration mode
    • 三端过滤器采用区域弯曲振动模式
    • US06842087B2
    • 2005-01-11
    • US09974979
    • 2001-10-12
    • Masakazu Yamauchi
    • Masakazu Yamauchi
    • H03H9/17H03H9/56H03H9/58H03H9/54H03H9/15
    • H03H9/585H03H9/581
    • A three-terminal filter using the area flexural vibration mode is smaller than filters using the area expansion vibration mode or the length vibration mode, and is easily adjusted to produce a desired frequency by changing the thickness and length of the three-terminal filter. The three-terminal filter includes three electrodes having a substantially square shape, and two piezoelectric layers having a substantially square shape, which are alternately laminated. The piezoelectric layers are polarized in the same thickness direction as the thickness direction, or in opposite thickness directions. The three-terminal filter further includes one surface electrode that functions as an input electrode, another surface electrode that functions as an output electrode, and an internal electrode that functions as a ground electrode.
    • 使用区域弯曲振动模式的三端子滤波器小于使用面积扩大振动模式或长度振动模式的滤波器,并且通过改变三端子滤波器的厚度和长度容易地调节以产生期望的频率。 三端子滤波器包括具有大致正方形形状的三个电极和交替层叠的基本上为正方形的两个压电层。 压电层在与厚度方向相同的厚度方向或相反的厚度方向上极化。 三端子滤波器还包括用作输入电极的一个表面电极,用作输出电极的另一表面电极和用作接地电极的内部电极。
    • 6. 发明申请
    • Piezoelectric Sounding Body
    • 压电探测体
    • US20070228893A1
    • 2007-10-04
    • US11760873
    • 2007-06-11
    • Masakazu YamauchiShigemasa Kusabiraki
    • Masakazu YamauchiShigemasa Kusabiraki
    • H01L41/00
    • H04R17/00G10K9/122
    • A piezoelectric sounding body in which a stable high sound pressure can be obtained over a wide frequency band. The piezoelectric sounding body includes a resin film, a piezoelectric vibrating plate attached to the center of one surface of the resin film with a tackiness layer, and a case supporting the periphery of the resin film. The piezoelectric vibrating plate is formed in a rectangular shape. An adhesive is applied between the middle of each long side of the piezoelectric vibrating plate and the resin film, along each long side of the piezoelectric vibrating plate. The separation between the piezoelectric vibrating plate and the tackiness layer can be prevented during sounding, and a stable sound pressure can be obtained for a prolonged period.
    • 一种压电发声体,其能够在宽频带上获得稳定的高声压。 压电发声体包括树脂膜,粘附在树脂膜的一个表面的中心的压电振动板,以及支撑树脂膜周边的壳体。 压电振动板形成为矩形。 在压电振动板的每个长边的中间和粘合剂之间沿着压电振动板的每个长边施加粘合剂。 在发声期间可以防止压电振动板与粘合层之间的分离,并且可以长时间获得稳定的声压。
    • 8. 发明授权
    • Piezoelectric sounding body
    • 压电式发声体
    • US07531946B2
    • 2009-05-12
    • US11760873
    • 2007-06-11
    • Masakazu YamauchiShigemasa Kusabiraki
    • Masakazu YamauchiShigemasa Kusabiraki
    • H01L41/053
    • H04R17/00G10K9/122
    • A piezoelectric sounding body in which a stable high sound pressure can be obtained over a wide frequency band. The piezoelectric sounding body includes a resin film, a piezoelectric vibrating plate attached to the center of one surface of the resin film with a tackiness layer, and a case supporting the periphery of the resin film. The piezoelectric vibrating plate is formed in a rectangular shape. An adhesive is applied between the middle of each long side of the piezoelectric vibrating plate and the resin film, along each long side of the piezoelectric vibrating plate. The separation between the piezoelectric vibrating plate and the tackiness layer can be prevented during sounding, and a stable sound pressure can be obtained for a prolonged period.
    • 一种压电发声体,其能够在宽频带上获得稳定的高声压。 压电发声体包括树脂膜,粘附在树脂膜的一个表面的中心的压电振动板,以及支撑树脂膜周边的壳体。 压电振动板形成为矩形。 在压电振动板的每个长边的中间和粘合剂之间沿着压电振动板的每个长边施加粘合剂。 在发声期间可以防止压电振动板与粘合层之间的分离,并且可以长时间获得稳定的声压。
    • 10. 发明授权
    • Piezoelectric electroacoustic transducer
    • 压电式电声换能器
    • US06888947B2
    • 2005-05-03
    • US10795506
    • 2004-03-09
    • Tetsuo TakeshimaMasakazu YamauchiManabu Sumita
    • Tetsuo TakeshimaMasakazu YamauchiManabu Sumita
    • H04R17/00H04R25/00H04L41/053
    • H04R31/003H04R17/00H04R2307/023Y10T29/42
    • A piezoelectric electroacoustic transducer includes a substantially rectangular piezoelectric diaphragm having an internal electrode, a plurality of laminated piezoelectric ceramic layers having the internal electrode interposed between two of the piezoelectric ceramic layers, principal-surface electrodes disposed on top and bottom principal surfaces of the piezoelectric diaphragm, the piezoelectric diaphragm generating surface bending-vibrations in response to application of an alternating signal between the principal-surface electrodes and the internal electrode, a resin film that is larger than the piezoelectric diaphragm and having the piezoelectric diaphragm affixed onto substantially a central portion of a front surface thereof, and a housing having a support for supporting the outer periphery of the resin film. The resin film has heat resistance at least a reflow-soldering temperature and at least one undulated portion bending in the front and rear directions thereof and formed in the outer periphery thereof, and the perimeter of the resin film including the four corners thereof is fixed to the support of the housing by adhesion.
    • 一种压电式电声换能器包括具有内部电极的大致矩形的压电振动膜,多个层压压电陶瓷层,其内部电极插入在两个压电陶瓷层之间,主表面电极设置在压电振动膜的顶部和底部主表面上 响应于在主表面电极和内部电极之间施加交变信号的压电振动板产生表面的弯曲振动,大于压电振动膜的树脂膜,并且将压电振动膜固定在基本上位于 其前表面和具有用于支撑树脂膜的外周的支撑体的壳体。 树脂薄膜至少具有回流焊接温度的耐热性,并且在其外周形成至少一个在其前后方向上弯曲的起伏部分,并且包括其四个角的树脂膜的周边被固定到 通过附着支撑住房。