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    Piezoelectric element and process for production thereof
    21.
    发明授权
    Piezoelectric element and process for production thereof 有权
    压电元件及其制造方法

    公开(公告)号：US06565997B2

    公开(公告)日：2003-05-20

    申请号：US09953674

    申请日：2001-09-17

    申请人： Toshikatsu Kashiwaya

    发明人： Toshikatsu Kashiwaya

    IPC分类号： B32B900

    CPC分类号： H01L41/0805 ,  C04B35/493 ,  C04B35/499 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/786 ,  H01L41/0973 ,  H01L41/1875 ,  H01L41/314 ,  H01L41/43 ,  Y10T29/42

    摘要： A piezoelectric element includes a ceramic substrate, a piezoelectric ceramic composition composed mainly of a PbMg1/3Nb2/3O3—PbZrO3—PbTiO3 ternary system solid solution composition containing 0.05 to 10.0% by weight of NiO, based on the ceramic composition. Electrodes are electrically connected to the piezoelectric. The piezoelectric is solidly attached to the ceramic substrate directly or via part of or all of the electrodes. The piezoelectric ceramic composition is represented by the following general formula: Pbx(Mgy/3Nb2/3)aTibZrcO3, wherein 0.95≦x≦1.05; 0.8≦y≦1.0; a, b and c are decimals falling in a range surrounded by (a,b,c)=(0.550, 0.425, 0.025), (0.550, 0.325, 0.125), (0.375, 0.325, 0.300), (0.100, 0.425, 0.475), (0.100, 0.475, 0.425) and (0.375, 0.425, 0.200), and a+b+c=1.000. This piezoelectric element has very high piezoelectric properties, is superior in vibration transmittability between ceramic substrate and piezoelectric, and can provide an actuator or sensor of small size and high integration.

    摘要翻译： 压电元件包括​​陶瓷基板，主要由基于陶瓷组合物的含有0.05至10.0重量％NiO的PbMg1 / 3Nb2 / 3O3-PbZrO3-PbTiO3三元系固溶体组合物组成的压电陶瓷组合物。 电极与压电电连接。 压电体直接或通过部分或全部电极固定在陶瓷衬底上。 压电陶瓷组合物由以下通式表示：Pbx（Mgy / 3Nb2 / 3）aTibZrcO3，其中0.95 <= x <= 1.05; 0.8 <= y <= 1.0; （a，b，c）=（0.550,0.425,0.025），（0.550,0.325,0.125），（0.375,0.325,0.300），（0.100,0.425， 0.475），（0.100,0.475,0.425）和（0.375,0.425,0.200）和a + b + c = 1.000。 该压电元件具有非常高的压电性能，陶瓷基板和压电体之间的振动传递性优异，并且可以提供小尺寸和高集成度的致动器或传感器。

    Piezoelectric/electrostrictive membrane element
    22.
    发明申请
    Piezoelectric/electrostrictive membrane element 有权
    压电/电致伸缩膜元件

    公开(公告)号：US20090152996A1

    公开(公告)日：2009-06-18

    申请号：US12316079

    申请日：2008-12-09

    申请人： Takaaki Koizumi ,  Toshikatsu Kashiwaya

    发明人： Takaaki Koizumi ,  Toshikatsu Kashiwaya

    IPC分类号： H01L41/04 ,  H01L41/09

    CPC分类号： C04B35/493 ,  C04B35/6262 ,  C04B2235/3206 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/5445 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/75 ,  C04B2235/76 ,  C04B2235/761 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/768 ,  H01L41/0973 ,  H01L41/1876 ,  H01L41/314 ,  H01L41/43

    摘要： Disclosed is a piezoelectric/electrostrictive membrane element having a large flexural displacement with suppressed disadvantages such as the generation of a micro crack and a lattice defect due to a concentrated stress. The element includes a substrate of a ceramic material, a membranous piezoelectric/electrostrictive portion including a piezoelectric/electrostrictive body constituted of a large number of crystal particles 10, 20 of a lead zirconate titanate based piezoelectric/electrostrictive ceramic composition, and membranous electrodes electrically connected to the piezoelectric/electrostrictive portion. The crystal particles 10, 20 include crystal main body portions 13, 23, and surface layer portions 15, 25 arranged in at least a part of the outer periphery of crystal main body portions 13, 23 and having a crystal structure which is different from that of the crystal main body portions 13, 23, and the piezoelectric/electrostrictive portion is bonded in a solid state to the substrate directly or via electrodes.

    摘要翻译： 公开了一种具有大弯曲位移的压电/电致伸缩膜元件，其具有诸如由于集中应力而产生微裂纹和晶格缺陷等缺点。 该元件包括陶瓷材料的基材，膜压电/电致伸缩部分，包括由锆钛酸铅基压电/电致伸缩陶瓷组合物的大量晶体颗粒10,20构成的压电/电致伸缩体，以及电连接的膜电极 到压电/电致伸缩部分。 晶体颗粒10,20包括晶体主体部分13,23和布置在晶体主体部分13,23的外周的至少一部分上的表面层部分15,25，并且具有不同于晶体主体部分13,23的晶体结构。 的晶体主体部分13,23，并且压电/电致伸缩部分以固态直接或通过电极接合到衬底。

    Piezoelectric element and process for production thereof
    29.
    发明授权
    Piezoelectric element and process for production thereof 有权
    压电元件及其制造方法

    公开(公告)号：US06610427B2

    公开(公告)日：2003-08-26

    申请号：US10072294

    申请日：2002-02-07

    申请人： Toshikatsu Kashiwaya ,  Mutsumi Kitagawa

    发明人： Toshikatsu Kashiwaya ,  Mutsumi Kitagawa

    IPC分类号： B32B900

    CPC分类号： H01L41/0805 ,  H01L41/083 ,  H01L41/0973 ,  H01L41/1875 ,  H01L41/314 ,  H01L41/43

    摘要： A piezoelectric element includes: a ceramic substrate, an electrode and a piezoelectric portion made of a piezoelectric ceramic composition containing a Pb(Mg, Ni)1/3Nb2/3O3—PbZrO3—PbTiO3 ternary system solid solution composition being represented by the following general formula (1) as a main component: Pbx{(Mg1-yNiy)1/3xaNb2/3}bTicZrdO3(1), wherein 0.95≦x≦1.05; 0.05≦y≦0.20; 0.90≦a≦1.10; b,c, and d are decimals falling in a range surrounded by (b, c, d)=(0.550, 0.425, 0.025), (0.550, 0.325, 0.125), (0.375, 0.325, 0.300), (0.100, 0.425, 0.475), (0.100, 0.475, 0.425) and (0.375, 0.425, 0.200) in the coordinates with coordinate axes of said b, c and d, and b+c+d=1.000. The electrode is electrically connected to the piezoelectric portion, and the piezoelectric portion is solidly attached to the ceramic substrate directly or via the electrode.

    摘要翻译： 压电元件包括​​：陶瓷基板，电极和由含有Pb（Mg，Ni）1 / 3Nb2 / 3O3-PbZrO3-PbTiO3三元体系固溶体组合物的压电陶瓷组合物制成的压电部件，由下列通式 （1）作为主要成分：Pbx {（Mg1-yNiy）1 / 3xaNb2 / 3} bTicZrdO3（1），其中0.95 <= x <= 1.05; 0.05 <= y <= 0.20; 0.90 <= a <= 1.10; （b，c，d）=（0.550,0.425,0.025），（0.550,0.325,0.125），（0.375,0.325,0.300），（0.100,0.425） ，0.475），（0.100,0.475,0.425）和（0.375,0.425,0.200）在坐标轴上的坐标，b + c + d = 1.000。 电极电连接到压电部分，并且压电部分直接或经由电极牢固地附接到陶瓷衬底。

    Ceramic element, method for producing ceramic element, display device, relay device, and capacitor
    30.
    发明授权
    Ceramic element, method for producing ceramic element, display device, relay device, and capacitor 失效
    陶瓷元件，陶瓷元件的制造方法，显示装置，继电器装置以及电容器

    公开(公告)号：US06476540B2

    公开(公告)日：2002-11-05

    申请号：US09861738

    申请日：2001-05-21

    申请人： Yukihisa Takeuchi ,  Toshikatsu Kashiwaya ,  Nobuo Takahashi

    发明人： Yukihisa Takeuchi ,  Toshikatsu Kashiwaya ,  Nobuo Takahashi

    IPC分类号： H01L4108

    CPC分类号： H01L41/1875 ,  H01H1/0036 ,  H01H57/00 ,  H01H2001/0042 ,  H01H2057/006 ,  H01L41/0973 ,  H01L41/098 ,  H01L41/314 ,  Y10T29/42

    摘要： A ceramic element comprises a main actuator element 26 having an anti-ferroelectric film 22 and a pair of electrodes 24a, 24b formed on a first principal surface (front surface) of the anti-ferroelectric film 22, a vibrating section 18 for supporting the main actuator element 26, and a fixed section 20 for supporting the vibrating section 18 in a vibrating manner. The anti-ferroelectric film 22 after polarization has a region Zt in which its average dielectric constant is increased in an analog manner in accordance with a voltage V applied to the pair of electrodes 24a, 24b. Specifically, an expression of p/t≦2.5 is satisfied provided that an average film thickness of the anti-ferroelectric film 22 is t, and a pitch between the pair of electrodes 24a, 24b is p. Accordingly, the mechanical displacement amount is changed in an analog manner in accordance with the applied voltage, making it possible to maintain a displacement amount equivalent to that obtained during application of a driving voltage, in a no voltage-loaded state after completion of application of the driving voltage.

    摘要翻译： 陶瓷元件包括具有抗铁电体膜22的主致动器元件26和形成在反铁电体膜22的第一主表面（前表面）上的一对电极24a，24b，用于支撑主铁芯的振动部分18 致动器元件26和用于以振动方式支撑振动部分18的固定部分20。 偏振后的反铁电体膜22具有根据施加到一对电极24a，24b的电压V的模拟方式增加平均介电常数的区域Zt。 具体地，如果反铁电体膜22的平均膜厚为t，并且一对电极24a，24b之间的间距为p，则p / t <= 2.5的表达式被满足。 因此，机械位移量根据所施加的电压以模拟方式改变，使得可以在完成施加之后的无电压负载状态下保持与施加驱动电压期间获得的位移量相当的位移量 的驱动电压。