公开(公告)号：US4876476A

公开(公告)日：1989-10-24

申请号：US189150

申请日：1988-05-02

申请人： Toshihiko Kittaka ,  Akira Ando ,  Yukio Sakabe

发明人： Toshihiko Kittaka ,  Akira Ando ,  Yukio Sakabe

IPC分类号： H03H9/02 ,  H03H9/10 ,  H03H9/13 ,  H03H9/17 ,  H03H9/56

CPC分类号： H03H9/562 ,  H03H9/177

摘要： A chip type piezoelectric device includes an element body formed of cofired ceramic material and having at least a pair of excitation electrodes opposed to each other with a portion of the element body interposed therebetween. At least the portion interposed between the excitation electrodes has piezoelectricity imparted thereto, whereby this portion serves as a vibrating portion. Of the pair of excitation electrodes at least one excitation electrode is positioned in the interior of the element body, and the element body is formed with a cavity only on the side of this interiorly positioned excitation electrode away from the vibrating portion.

摘要翻译： 片式压电器件包括由共烧陶瓷材料形成的元件体，并且具有彼此相对的至少一对激励电极，元件体的一部分插入其间。 至少插入在激励电极之间的部分具有压电性，由此该部分用作振动部分。 在一对激励电极中，至少一个激励电极位于元件主体的内部，并且元件主体仅在该内部定位的激励电极的远离振动部分的一侧形成有空腔。

公开(公告)号：US4939403A

公开(公告)日：1990-07-03

申请号：US291793

申请日：1988-12-29

申请人： Toshihiko Kittaka ,  Akira Ando ,  Yukio Sakabe

发明人： Toshihiko Kittaka ,  Akira Ando ,  Yukio Sakabe

IPC分类号： H03H9/13 ,  H03H9/17 ,  H03H9/205

CPC分类号： H03H9/178

摘要： An energy trapping type piezoelectric resonance device utilizing higher-order harmonics of the thickness extensional vibration mode comprising a body formed of a piezoelectric material and three or more electrodes arranged overlapping with each other and separated by the piezoelectric material layers in the direction of thickness of the body, wherein respective portions of the piezoelectric material layers interposed between the electrodes are polarized and at least respective portions of the piezoelectric material layers which are not interposed between the electrodes is polarized.

摘要翻译： 一种利用厚度延伸振动模式的高阶谐波的能量捕获型压电谐振装置，包括由压电材料形成的主体和彼此重叠并且被压电材料层沿厚度方向分隔的三个或更多个电极 其中插入在电极之间的压电材料层的各个部分被极化，并且至少压电材料层的不介于电极之间的部分被极化。

公开(公告)号：US4918350A

公开(公告)日：1990-04-17

申请号：US211777

申请日：1988-06-27

申请人： Akira Ando ,  Toshihiko Kittaka ,  Yukio Sakabe

发明人： Akira Ando ,  Toshihiko Kittaka ,  Yukio Sakabe

IPC分类号： H01L41/187 ,  H03H9/13 ,  H03H9/17 ,  H03H9/205

CPC分类号： H03H9/178 ,  H01L41/187

摘要： A piezoelectric resonance device of the energy-trapped type utilizing a harmonic wave of the thickness extensional vibration mode, wherein three or more electrodes are so disposed that they are overlapped with each other through the piezoelectric layer in the direction of the thickness and each of the electrodes is comprised of a vibrating electrode portion for energy-trapping and a conducting portion for connecting the vibrating electrode to the side edge of the piezoelectric layer.

摘要翻译： 利用厚度延伸振动模式的谐波的能量捕获型的压电谐振装置，其中三个或更多个电极被布置成使得它们在厚度方向上通过压电层彼此重叠，并且每个 电极由用于能量捕获的振动电极部分和用于将振动电极连接到压电层的侧边缘的导电部分组成。

公开(公告)号：US4900970A

公开(公告)日：1990-02-13

申请号：US215549

申请日：1988-07-06

申请人： Akira Ando ,  Toshihiko Kittaka ,  Yukio Sakabe ,  Satoru Fujishima

发明人： Akira Ando ,  Toshihiko Kittaka ,  Yukio Sakabe ,  Satoru Fujishima

IPC分类号： H03H9/205 ,  H03H9/13 ,  H03H9/17

CPC分类号： H03H9/178

摘要： An energy trapping type piezoelectric resonance device utilizing the mode of thickness extensional vibration comprises a plate-shaped body of a piezoelectric material and three or more electrodes provided to be opposed to each other through peizoelectric material layers in the direction of thickness of the body. At least one of the electrodes is provided to be smaller in area than the major surfaces of the body, to be capable of energy trapping.

摘要翻译： 利用厚度延伸振动模式的能量捕获型压电谐振装置包括压电材料的板状体和通过孔体材料层在主体的厚度方向上彼此相对设置的三个或更多个电极。 电极中的至少一个被提供为比主体的主表面更小的面积，以能够捕获能量。

公开(公告)号：US5279996A

公开(公告)日：1994-01-18

申请号：US917829

申请日：1992-07-21

申请人： Kiyoshi Hase ,  Toshihiko Kittaka ,  Yukio Sakabe

发明人： Kiyoshi Hase ,  Toshihiko Kittaka ,  Yukio Sakabe

IPC分类号： C04B35/49 ,  C04B35/491 ,  H01L41/187

CPC分类号： H01L41/187 ,  C04B35/491

摘要： A piezoelectric ceramic composition in which 0.1 to 8 mole % of a Pb atom in lead titanate zirconate is replaced with at least one of Ba, Sr and Ca, and which contains 0.5 to 1.9% by weight of at least one of Sb, Nb and Ta when respectively converted into Sb.sub.2 O.sub.3, Nb.sub.2 O.sub.5 and Ta.sub.2 O.sub.5, contains 0.1 to 0.8% by weight of at least one of Cr, Fe and Mn when respectively converted into Cr.sub.2 O.sub.3, Fe.sub.2 O.sub.3 and MnO.sub.2, and contains 0.001 to 0.25% by weight of at least one of Si and Ge when respectively converted into SiO.sub.2 and GeO.sub.2.

摘要翻译： 一种压电陶瓷组合物，其中钛酸锆酸铅中的0.1至8摩尔％的Pb原子被Ba，Sr和Ca中的至少一种替代，并且其包含0.5至1.9重量％的Sb，Nb和 当分别转化为Sb 2 O 3，Nb 2 O 5和Ta 2 O 5时，当分别转化为Cr 2 O 3，Fe 2 O 3和MnO 2时，含有0.1至0.8重量％的Cr，Fe和Mn中的至少一种，并且含有0.001至0.25重量％的至少一种 的Si和Ge分别转化为SiO2和GeO2。

公开(公告)号：US5233256A

公开(公告)日：1993-08-03

申请号：US828116

申请日：1992-01-30

申请人： Seigo Hayashi ,  Toshihiko Kittaka ,  Akira Ando

发明人： Seigo Hayashi ,  Toshihiko Kittaka ,  Akira Ando

IPC分类号： H01L41/09 ,  H01L41/22

CPC分类号： H01L41/0926 ,  H01L41/083

摘要： A method of driving a piezoelectric bimorph device in which first and second piezoelectric ceramic layers are so electrically connected to each other as to expand or contract in the opposite directions, which is characterized in that when t.sub.1 is taken as the thickness of one of the first and second piezoelectric ceramic layers, Ec is taken as the coercive field strength of a piezoelectric material constituting the piezoelectric ceramic layer, and V.sub.1 is taken as the minimum value of the produce Ec.times.t.sub.1 =Vc.sub.1, and t.sub.2 is taken as the thickness of the other piezoelectric ceramic layer, Ec is taken as the coercive field strength Ec of a piezoelectric material constituting the piezoelectric ceramic layer, and V.sub.2 is taken as the minimum value of the produce Ec.times.t.sub.2 =Vc.sub.2, a voltage of not less than (V.sub.1 +V.sub.2) is applied to said piezoelectric bimorph device.

摘要翻译： 一种驱动压电双晶片装置的方法，其中第一和第二压电陶瓷层彼此电连接以便沿相反方向膨胀或收缩，其特征在于，当将t1作为第一 和第二压电陶瓷层，将Ec作为构成压电陶瓷层的压电材料的矫顽场强度，将V1作为产物Ecxt1 = Vc1的最小值，将t2作为另一个压电陶瓷层的厚度 陶瓷层，Ec作为构成压电陶瓷层的压电材料的矫顽场强度Ec，将V2作为产物Ecxt2 = Vc2的最小值，施加不小于（V1 + V2）的电压 到所述压电双压电晶片装置。

公开(公告)号：US5057801A

公开(公告)日：1991-10-15

申请号：US482172

申请日：1990-02-20

申请人： Toshihiko Kittaka ,  Akira Ando ,  Hiroshi Tamura

发明人： Toshihiko Kittaka ,  Akira Ando ,  Hiroshi Tamura

IPC分类号： H03H9/02 ,  H03H9/17 ,  H03H9/54 ,  H03H9/56

CPC分类号： H03H9/562 ,  H03H9/0207 ,  H03H9/176 ,  H03H9/178

摘要： A piezoelectric filter device of an energy-trapped type utilizing a higher harmonic in the thickness-extensional vibration mode, having a plate-shaped body made of a piezoelectric material. At least three electrodes are arranged so as to overlap each other while being separated by layers of the piezoelectric material in the direction of thickness of the plate-shaped body. At least one of the electrodes comprises a plurality of divided electrodes which are substantially coplanar. At least one of the divided edlectrodes constitutes an input terminal and at least one of the remaining divided electrodes constitutes an output terminal. A region of the body, around the vibrating region, where the electrodes are overlapped with each other, is uniformly subjected to polarization processing in the direction of thickness.

摘要翻译： 一种在厚度 - 延伸振动模式下利用高次谐波的能量捕获型压电滤波器装置，具有由压电材料制成的板状体。 至少三个电极被布置成彼此重叠，同时被压电材料的层沿着板状体的厚度方向分开。 电极中的至少一个包括基本共面的多个分割电极。 分割电感中的至少一个构成输入端子，并且剩余的分割电极中的至少一个构成输出端子。 在电极彼此重叠的振动区周围的身体的区域在厚度方向上均匀地进行偏振处理。

公开(公告)号：US5045744A

公开(公告)日：1991-09-03

申请号：US454362

申请日：1989-12-21

申请人： Akira Ando ,  Toshihiko Kittaka ,  Hiroshi Tamura ,  Isao Toyoshima

发明人： Akira Ando ,  Toshihiko Kittaka ,  Hiroshi Tamura ,  Isao Toyoshima

IPC分类号： H03H9/13 ,  H03H9/17

CPC分类号： H03H9/178

摘要： Disclosed is an energy-trapping-by-frequency-lowering-type piezoelectric-resonance device utilizing a higher harmonic in the mode of thickness-extensional vibration, in which at least three electrodes for energy trapping are arranged so as to be overlapped with each other in the direction of thickness of layers of piezoelectric material forming a plate-shaped body. The three electrodes comprise a pair of outermost electrodes and at least one inner electrode. The diameter of one polygonal side of at least one outermost electrode is made larger than the diameter of one polygonal side of an inner electrode.

摘要翻译： 本发明公开了一种利用高次谐波的能量捕捉频率降低型压电谐振装置，其中至少三个能量捕获电极被布置成彼此重叠的厚度延伸振动模式 在形成板状体的压电材料的层的厚度方向上。 三个电极包括一对最外电极和至少一个内电极。 使至少一个最外面电极的一个多边形的直径比内部电极的一个多边形的直径大。

公开(公告)号：US4605876A

公开(公告)日：1986-08-12

申请号：US669055

申请日：1984-11-07

申请人： Toshio Ogawa ,  Toshihiko Kittaka

发明人： Toshio Ogawa ,  Toshihiko Kittaka

IPC分类号： C04B35/46 ,  C04B35/472 ,  H01L41/18 ,  H01L41/187 ,  H01L41/193 ,  H02N2/00

CPC分类号： H01L41/187 ,  C04B35/472

摘要： Piezoelectric ceramic compositions comprising a principal component, ##EQU1## and manganese contained therein as an additive in the amount of 0.1 to 2.0 wt % of MnO.sub.2 with respect to the weight of 1 mol of the principal component. The piezoelectric ceramic compositions are suitable for use for pyroelectric devices, piezoelectric vibrators, resonators, oscillators, ceramic filters, surface acoustic wave filters and so on.

摘要翻译： 相对于主成分1摩尔的重量，包含作为添加剂的主要组分（IMAGE）和锰的量为0.1〜2.0重量％的MnO 2的压电陶瓷组合物。 压电陶瓷组合物适用于热电元件，压电振子，谐振器，振荡器，陶瓷滤波器，表面声波滤波器等。

公开(公告)号：US4511483A

公开(公告)日：1985-04-16

申请号：US571153

申请日：1984-01-18

申请人： Toshio Ogawa ,  Toshihiko Kittaka

发明人： Toshio Ogawa ,  Toshihiko Kittaka

IPC分类号： C04B35/46 ,  C04B35/472 ,  H01B3/12 ,  H01L41/18 ,  H01L41/187

CPC分类号： C04B35/472 ,  H01L41/187

摘要： A piezoelectric ceramic composition comprises a major component, ##STR1## (where 0.01.ltoreq.X.ltoreq.0.40 and 0.ltoreq..alpha..ltoreq.1), and CuO contained therein as an additive in an amount of 0.05 to 2.5 wt % with respect to the weight of 1 mole of the major component. If required, this composition may contain 0.05 to 2.0 wt % of MnO.sub.2 with respect to the weight of 1 mole of the major component. The composition has excellent temperature characteristics in addition to excellent dielectric and piezoelectric characteristics suitable for use in various fields.

摘要翻译： 压电陶瓷组合物包含主要组分，其中0.01重量％，其中0.01 1），其中作为添加剂的CuO的含量为0.05-2.5重量％ 相对于1摩尔主要成分的重量。 如果需要，该组合物可以相对于1摩尔主要组分的重量含有0.05-2.0重量％的MnO 2。 除了适用于各种领域的优异的电介质和压电特性之外，该组合物具有优异的温度特性。