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    Piezoelectric resonator and electronic component including same
    1.
    发明授权
    Piezoelectric resonator and electronic component including same 失效
    压电谐振器和包括其的电子部件

    公开(公告)号：US6097134A

    公开(公告)日：2000-08-01

    申请号：US64327

    申请日：1998-04-22

    申请人： Shoichi Kawabata ,  Toshihiko Unami ,  Takashi Mizuguchi ,  Jiro Inoue ,  Mamoru Ogawa ,  Toshiyuki Baba ,  Toshio Nishimura

    发明人： Shoichi Kawabata ,  Toshihiko Unami ,  Takashi Mizuguchi ,  Jiro Inoue ,  Mamoru Ogawa ,  Toshiyuki Baba ,  Toshio Nishimura

    IPC分类号： H03H9/05 ,  H03H9/10 ,  H03H9/60 ,  H01L41/08

    CPC分类号： H03H9/1014 ,  H03H9/178 ,  H03H9/605

    摘要： A piezoelectric resonator having a small spurious resonance and a large difference .DELTA.F between the resonant frequency and the antiresonant frequency has a compact size and an external electrode has a structure which prevents damage or breaking of the external electrode. The piezoelectric resonator has a substantially rectangular-parallelepiped base member which includes a plurality of laminated piezoelectric layers. A middle portion of the piezoelectric layers is polarized in opposite directions relative to each other. On main surfaces of the middle part of the piezoelectric layers, first and second groups of inner electrodes and are exposed alternately at both side surfaces of the base member. On both side surfaces of the base member, first and second external electrodes are arranged so as to alternately connect to the first and second groups of inner electrodes.

    摘要翻译： 在谐振频率和反谐振频率之间具有小的寄生谐振和较大差ΔTA的压电谐振器具有紧凑的尺寸，并且外部电极具有防止外部电极损坏或断裂的结构。 压电谐振器具有大致矩形平行六面体的基体，其包括多个层压压电层。 压电层的中间部分相对于彼此在相反方向上极化。 在压电层的中间部分的主表面上，第一和第二组内部电极在基体的两个侧表面交替暴露。 在基体的两个侧表面上，第一和第二外部电极被布置成交替地连接到第一和第二组内部电极。

    Piezoelectric resonator and electronic component using the same
    6.
    发明授权
    Piezoelectric resonator and electronic component using the same 失效
    压电谐振器和使用其的电子元件

    公开(公告)号：US6091180A

    公开(公告)日：2000-07-18

    申请号：US120898

    申请日：1998-07-22

    申请人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda ,  Takeshi Yamazaki ,  Tetsuo Takeshima ,  Shigemasa Kusabiraki ,  Yutaka Kawai ,  Hirohide Yoshino

    发明人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda ,  Takeshi Yamazaki ,  Tetsuo Takeshima ,  Shigemasa Kusabiraki ,  Yutaka Kawai ,  Hirohide Yoshino

    IPC分类号： H03H9/10 ,  H03H9/17 ,  H03H9/205 ,  H03H9/58 ,  H03H9/60 ,  H01L41/08

    CPC分类号： H03H9/1014 ,  H03H9/178 ,  H03H9/605

    摘要： A piezoelectric resonator which vibrates in a longitudinal vibration mode includes first insulating films disposed on a side surface of a base member so as to cover at least part of exposed portions of a first group of the internal electrodes and second insulating films disposed on the side surface of the base member so as to cover at least part of the exposed portions of a second group of the internal electrodes. A first thin-film external electrode extends continuously in the longitudinal direction of the base member on the first insulating films and a second thin-film external electrode extends continuously in the longitudinal direction of the base member on the second insulating film. A first conductive resin film and a second conductive resin film are respectively provided on the first thin-film external electrode and the second thin-film external electrode such that even if the thin-film external electrodes are broken or damaged, the piezoelectric resonator still functions.

    摘要翻译： 以纵向振动模式振动的压电谐振器包括：第一绝缘膜，设置在基底构件的侧表面上，以覆盖第一组内部电极的暴露部分的至少一部分;以及设置在侧表面上的第二绝缘膜 以覆盖第二组内部电极的暴露部分的至少一部分。 第一薄膜外部电极在第一绝缘膜上沿着基底构件的纵向方向连续延伸，第二薄膜外部电极在第二绝缘膜上沿着基底构件的纵向方向连续延伸。 第一导电树脂膜和第二导电树脂膜分别设置在第一薄膜外部电极和第二薄膜外部电极上，使得即使薄膜外部电极被破坏或损坏，压电谐振器仍然起作用 。

    Piezoelectric resonator and electronic component including same
    7.
    发明授权
    Piezoelectric resonator and electronic component including same 有权
    压电谐振器和包括其的电子部件

    公开(公告)号：US6111343A

    公开(公告)日：2000-08-29

    申请号：US137173

    申请日：1998-08-20

    申请人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda

    发明人： Toshihiko Unami ,  Toshiyuki Baba ,  Toshio Nishimura ,  Tatsunori Kakuda

    IPC分类号： H03H9/10 ,  H03H9/17 ,  H03H9/205 ,  H03H9/58 ,  H03H9/60 ,  H01L41/04

    CPC分类号： H03H9/178 ,  H03H9/1014 ,  H03H9/605

    摘要： A piezoelectric resonator includes a base member including a plurality of laminated piezoelectric layers and internal electrodes. The adjacent piezoelectric layers are polarized in different directions with an internal electrode disposed therebetween. A groove is provided on one lateral surface of the base member, and every other internal electrode is exposed at both sides of the groove. Insulating films are disposed on unexposed portions of the internal electrodes. External electrodes are provided on both sides of the groove in the base member and are connected to the internal electrodes. As a result of this structure, the piezoelectric resonator prevents a reduction in the difference .DELTA.F between the resonant frequency and the anti-resonant frequency.

    摘要翻译： 压电谐振器包括具有多个层叠压电层和内部电极的基底构件。 相邻的压电层在不同的方向上被极化，内部电极位于它们之间。 在基座的一个侧面上设置有槽，在槽的两侧露出另外的内部电极。 绝缘膜设置在内部电极的未曝光部分上。 外部电极设置在基体的槽的两侧并与内部电极连接。 作为这种结构的结果，压电谐振器防止谐振频率和反谐振频率之间的差ΔTA的减小。

    Composite vibration device
    8.
    发明授权
    Composite vibration device 有权
    复合振动装置

    公开(公告)号：US06717335B2

    公开(公告)日：2004-04-06

    申请号：US09993963

    申请日：2001-11-27

    申请人： Toshio Nishimura ,  Jiro Inoue ,  Hiroaki Kaida ,  Akihiro Mitani

    发明人： Toshio Nishimura ,  Jiro Inoue ,  Hiroaki Kaida ,  Akihiro Mitani

    IPC分类号： H01L4104

    CPC分类号： H03H9/0514 ,  H03H9/178

    摘要： A composite vibration device includes a piezoelectric element defining a vibrating member, which is made of a material having a first acoustical impedance, first and second reflecting layers are connected to respective end surfaces of the piezoelectric element, each of the layers are made of a material having a second acoustical impedance lower than the first acoustical impedance, and first and second supporting members. Each of the first and second supporting members is made of a material having an acoustical impedance higher than the second acoustical impedance and is connected to the outer surface of each of the first and second reflecting layers. Vibrations propagated from the piezoelectric element are reflected at the interfaces between the reflecting layers and the supporting members.

    摘要翻译： 复合振动装置包括限定由具有第一声阻抗的材料制成的振动部件的压电元件，第一和第二反射层连接到压电元件的相应端表面，每个层由材料制成 具有低于第一声阻抗的第二声阻抗，以及第一和第二支撑构件。 第一和第二支撑构件中的每一个由具有高于第二声阻抗的声阻抗的材料制成，并且连接到第一和第二反射层中的每一个的外表面。 从压电元件传播的振动在反射层和支撑构件之间的界面处被反射。

    Longitudinally coupled multi-mode piezoelectric filter
    9.
    发明授权
    Longitudinally coupled multi-mode piezoelectric filter 有权

    公开(公告)号：US06608428B2

    公开(公告)日：2003-08-19

    申请号：US10004224

    申请日：2001-11-02

    申请人： Toshio Nishimura ,  Jiro Inoue

    发明人： Toshio Nishimura ,  Jiro Inoue

    IPC分类号： H03H954

    CPC分类号： H03H9/562

    摘要： A longitudinally coupled multi-mode piezoelectric filter is constructed to use a piezoelectric stiffened effect. The piezoelectric filter includes a multilayer piezoelectric element having at least four excitation electrodes arranged substantially parallel to one another and a plurality of piezoelectric layers which are arranged between the excitation electrodes and which are polarized in a predetermined direction. The piezoelectric filter further includes an input electrode, an output electrode, and a ground electrode. Application of an input signal between the input electrode and the ground electrode causes vibration of different order modes to be excited and coupled, such that an output signal is extracted between the output electrode and the ground electrode.

    Longitudinally coupled multi-mode piezoelectric bulk wave filter device, longitudinally coupled multi-mode piezoelectric bulk wave filter, and electronic component
    10.
    发明授权
    Longitudinally coupled multi-mode piezoelectric bulk wave filter device, longitudinally coupled multi-mode piezoelectric bulk wave filter, and electronic component 失效
    纵向耦合多模压电体波滤波器件，纵向耦合多模压电体波滤波器和电子元器件

    公开(公告)号：US06822536B1

    公开(公告)日：2004-11-23

    申请号：US10438908

    申请日：2003-05-16

    申请人： Toshio Nishimura ,  Jiro Inoue

    发明人： Toshio Nishimura ,  Jiro Inoue

    IPC分类号： H03H954

    CPC分类号： H03H9/581 ,  H03H9/1014 ,  H03H9/178 ,  H03H9/562

    摘要： A longitudinally coupled multi-mode piezoelectric bulk wave filter device which is manufactured at low cost, presents a wide bandwidth, results in a large attenuation, and includes first and second piezoelectric bulk wave filters which are mounted on a casing substrate. The first and second piezoelectric bulk wave filters are arranged such that the distance between the ground electrodes of the first and second piezoelectric bulk wave filters is smaller than the distance between input electrodes of the first and second piezoelectric bulk wave filters and the distance between output electrodes of the first and second piezoelectric bulk wave filters. When an input signal is applied between the input electrode and the ground electrode, harmonic waves of different orders are excited and coupled. A filter output is provided between the output electrode and the ground electrode.

    摘要翻译： 以低成本制造的纵向耦合的多模式压电体波滤波器装置具有宽带宽，导致大的衰减，并且包括安装在壳体基板上的第一和第二压电体波滤波器。 第一和第二压电体波滤波器被布置成使得第一和第二压电体波滤波器的接地电极之间的距离小于第一和第二压电体波滤波器的输入电极之间的距离和输出电极之间的距离 的第一和第二压电体波滤波器。 当在输入电极和接地电极之间施加输入信号时，不同阶次的谐波被激发并耦合。 在输出电极和接地电极之间提供滤波器输出。