公开(公告)号：US06440324B1

公开(公告)日：2002-08-27

申请号：US09648441

申请日：2000-08-25

申请人： Koichi Hayashi ,  Akira Ando ,  Toshikatsu Hisaki ,  Yuji Yoshikawa ,  Masanori Kimura

发明人： Koichi Hayashi ,  Akira Ando ,  Toshikatsu Hisaki ,  Yuji Yoshikawa ,  Masanori Kimura

IPC分类号： C04B3548

CPC分类号： H03H9/178 ,  C04B35/491 ,  C04B35/493 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/107 ,  H01L41/1876

摘要： A piezoelectric ceramic composition capable of obtaining a piezoelectric member that can provide a sufficient sintering density even by firing at a low temperature besides only allowing small amount of Pb to be evaporated by firing to reduce deterioration of electrical characteristics, wherein the piezoelectric member comprises a perovskite structure oxide of the piezoelectric ceramic composition containing Pb, Ti, Zr, Ma (Ma represents at least one of Cr, Mn, Fe and Co) and Md (Md represents at least one of Nb, Sb, Ta and W), and wherein a represents the total content (in mole) of Ma, and b, c, d and e (in mole) represent the contents of Sb, Nb, Ta and W, respectively, and 0.50

摘要翻译： 一种压电陶瓷组合物，其能够获得即使在低温下也可以提供足够的烧结密度的压电陶瓷组合物，除了仅通过烧制使少量的Pb蒸发以减少电特性的劣化，其中压电元件包括​​钙钛矿 包含Pb，Ti，Zr，Ma的压电陶瓷组合物的结构氧化物（Ma表示Cr，Mn，Fe和Co中的至少一种），Md（Md表示Nb，Sb，Ta和W中的至少一种），其中 a表示Ma的总含量（以摩尔计），b，c，d和e（以摩尔计）分别表示Sb，Nb，Ta和W的含量，0.50

公开(公告)号：US06218770B1

公开(公告)日：2001-04-17

申请号：US09270864

申请日：1999-03-17

申请人： Akira Ando ,  Koichi Hayashi

发明人： Akira Ando ,  Koichi Hayashi

IPC分类号： H01L4108

CPC分类号： H03H9/02228 ,  H03H9/176

摘要： A piezoelectric element has a very small size, has a high coefficient of electromechanical coupling, and can easily be impedance-matched to a circuit. An interdigital electrode, including two comb-shaped electrodes, is provided on one surface of a plate-like piezoelectric member, and similarly, an interdigital electrode, including two comb-shaped electrodes, is provided on another surface of the plate-like piezoelectric member. The piezoelectric member is polarized by applying electrical fields between the two respective pairs of comb-shaped electrodes; and in addition, by applying an electrical field for excitation between a terminal connecting one of the comb-shaped electrodes to each interdigital electrode, and another terminal connecting the other comb-shaped electrodes to each interdigital electrode, longitudinal vibrations in a stiffened mode are excited, whereby the piezoelectric member expands and contracts in the longitudinal direction thereof.

摘要翻译： 压电元件具有非常小的尺寸，具有高的机电耦合系数，并且可以容易地与电路阻抗匹配。 在板状压电部件的一个面上设置有包括两个梳状电极的交叉指状电极，同样，在板状压电部件的另一面上设置包括两个梳状电极的交叉指状电极 。 通过在两对梳齿状电极之间施加电场来使压电元件极化; 此外，通过在连接到梳齿状电极之一的端子与每个叉指电极之间施加用于激励的电场，以及将其它梳状电极连接到每个叉指电极的另一端子，激励加强模式的纵向振动 由此压电元件在其纵向方向上膨胀和收缩。

公开(公告)号：US06117355A

公开(公告)日：2000-09-12

申请号：US320320

申请日：1999-05-26

申请人： Isamu Yoshizawa ,  Katsuhiro Horikawa ,  Koichi Hayashi ,  Akira Ando

发明人： Isamu Yoshizawa ,  Katsuhiro Horikawa ,  Koichi Hayashi ,  Akira Ando

IPC分类号： H01L41/09 ,  C04B35/46 ,  H01L41/113 ,  H01L41/187 ,  H03H9/17 ,  C04B35/499 ,  C04B35/472 ,  H01L41/08

CPC分类号： H01L41/187

摘要： Provided is a piezoelectric ceramic composition containing a lead titanate which has excellent temperature stability of the resonance frequency, and is suitable for application in a filter, a vibrator or the like, and a piezoelectric element using the piezoelectric ceramic composition. A piezoelectric substrate comprising a ceramic material containing PbTiO.sub.3 is provided with vibrating electrodes on the front and rear surfaces. The ceramic material containing PbTiO.sub.3 contains not less than about 0.1% by weight or more than about 3.0% by weight of Mn based on MnCO.sub.3 as the subcomponent in the main component having a composition satisfying 0.02.ltoreq.x.ltoreq.0.16 and 0.15.ltoreq.y.ltoreq.0.50 of the general formula Pb.sub.1-1.5x Nd.sub.x [(In.sub.1/2 Nb.sub.1/2).sub.y Ti.sub.1-y ]O.sub.3.

摘要翻译： 本发明提供一种压电陶瓷组合物，其含有具有优异的共振频率的温度稳定性的钛酸铅，适用于过滤器，振动器等，以及使用该压电陶瓷组合物的压电元件。 包含含有PbTiO 3的陶瓷材料的压电基板在前表面和后表面上设置有振动电极。 含有PbTiO 3的陶瓷材料含有不低于约0.1重量％或大于约3.0重量％的Mn，以MnCO3为主成分的副成分，其组成满足0.02≤x≤0.16且0.15 < 通式为Pb1-1.5xNdx [（In + E，fra 1/2 + EE Nb + E，fra 1/2 + EE）yTi1-y] O3的/=y

公开(公告)号：US5965057A

公开(公告)日：1999-10-12

申请号：US726746

申请日：1996-10-07

申请人： Kiyoshi Hase ,  Hiroshi Takagi ,  Akira Ando ,  Akira Nagai ,  Yu Tokuda ,  Koichi Hayashi

发明人： Kiyoshi Hase ,  Hiroshi Takagi ,  Akira Ando ,  Akira Nagai ,  Yu Tokuda ,  Koichi Hayashi

IPC分类号： C04B35/49 ,  C04B35/491 ,  C04B35/64 ,  H01L41/187 ,  H01L41/39 ,  C04B35/493

CPC分类号： C04B35/64 ,  C04B35/491 ,  H01L41/187

摘要： There is provided a piezoelectric ceramic having a small mechanical factor of merit Qm and excellent heat-resisting properties, e.g., a piezoelectric ceramic for filter elements which is compatible with surface mounting and a method of manufacturing the same in a large amount and in a stable manner. There is provided a piezoelectric ceramic which is a composite oxide of at least lead, zirconium and titanium, wherein an oxide of manganese exists in a grain boundary layer in a density higher than that in a crystal grain of the piezoelectric ceramic and a glass phase exists in the grain boundary layer. It is manufactured by depositing a manganese compound and a glass material on the surface of a piezoelectric ceramic comprising a composite oxide of at least lead, zirconium and titanium and by performing thermal processing thereafter to diffuse the deposited substance in a grain boundary portion of the piezoelectric ceramic.

摘要翻译： 提供了具有小的机械因数Qm和优异的耐热性能的压电陶瓷，例如与表面安装兼容的用于过滤元件的压电陶瓷及其制造方法大量且稳定的方法 方式。 提供了一种压电陶瓷，其是至少铅，锆和钛的复合氧化物，其中锰的氧化物以比压电陶瓷的晶粒中的密度高的晶界层存在并且存在玻璃相 在晶界层。 通过在包含至少铅，锆和钛的复合氧化物的压电陶瓷的表面上沉积锰化合物和玻璃材料，然后通过进行热处理，将沉积物扩散到压电体的晶界部分来制造 陶瓷。

公开(公告)号：US5766502A

公开(公告)日：1998-06-16

申请号：US729733

申请日：1996-10-07

申请人： Kiyoshi Hase ,  Hiroshi Takagi ,  Akira Ando ,  Akira Nagai ,  Yu Tokuda ,  Koichi Hayashi

发明人： Kiyoshi Hase ,  Hiroshi Takagi ,  Akira Ando ,  Akira Nagai ,  Yu Tokuda ,  Koichi Hayashi

IPC分类号： C04B35/49 ,  C04B35/491 ,  C04B35/64 ,  H01L41/187 ,  H01L41/39 ,  C04B35/493

CPC分类号： H01L41/187 ,  C04B35/491 ,  C04B35/64

摘要： Piezoelectric ceramics whose mechanical quality factor Qm is small and which has an excellent heat resistance, e.g. piezoelectric ceramics for filtering elements whose group delay time characteristic is flat, phase distortion is small and which can be accommodated to surface mounting, and a method for stably producing it are provided. Manganese oxide and lead oxide are caused to coexist in high concentration in grain boundary parts of the piezoelectric ceramics containing composite oxides of at least lead, zirconium and titanium as compared to intra-crystal grains of the piezoelectric ceramics. It is manufactured by treating the piezoelectric ceramics by heat after adhering manganese and lead compounds on the surface thereof to diffuse the oxides in the grain boundary parts of the piezoelectric ceramics.

摘要翻译： 压电陶瓷的机械品质因数Qm小，耐热性优异。 用于滤波元件的压电陶瓷，其组延迟时间特性平坦，相位变形小并且可以适应于表面安装，并且提供了一种用于稳定地生产它的方法。 与压电陶瓷的晶体内晶粒相比，含有至少铅，锆和钛的复合氧化物的压电陶瓷的晶界部分的高浓度氧化物和氧化铅共存。 通过在表面上附着锰和铅化合物之后通过热处理压电陶瓷来制造，以使氧化物在压电陶瓷的晶界部分扩散。

公开(公告)号：US06379580B1

公开(公告)日：2002-04-30

申请号：US09656778

申请日：2000-09-07

申请人： Koichi Hayashi ,  Akihiro Nakamichi ,  Akira Ando

发明人： Koichi Hayashi ,  Akihiro Nakamichi ,  Akira Ando

IPC分类号： C04B35472

CPC分类号： C04B35/472 ,  H01L41/187

摘要： A piezoelectric ceramic material which can suppress segregation of a W compound or a W oxide in W-containing sintered PbTiO3 and a piezoelectric transducer employing the ceramic material. The ceramic material contains lead titanate as a primary component; an Mn-containing oxide or an Mn-containing compound and a W-containing compound or a W-containing oxide as secondary components; and an Si-containing oxide or an Si-containing compound as an additional component. Alternatively, the piezoelectric ceramic material contains a primary component containing PbTiO3 and Pb(MnyW(1−y))O3 and additionally SiO2 or PbSiO3.

摘要翻译： 一种压电陶瓷材料，其可以抑制含W烧结PbTiO 3中的W化合物或W氧化物的偏析和使用该陶瓷材料的压电换能器。 陶瓷材料含有钛酸铅作为主要成分; 含Mn氧化物或含Mn化合物，含W化合物或含W的氧化物作为次要成分; 以及含Si氧化物或含Si化合物作为附加成分。 或者，压电陶瓷材料含有包含PbTiO 3和Pb（MnyW（1-y））O 3和另外的SiO 2或PbSiO 3的主要组分。

公开(公告)号：US06444141B1

公开(公告)日：2002-09-03

申请号：US09773398

申请日：2001-01-31

申请人： Akihiro Nakamichi ,  Koichi Hayashi ,  Akira Ando

发明人： Akihiro Nakamichi ,  Koichi Hayashi ,  Akira Ando

IPC分类号： H01L4118

摘要： A piezoelectric ceramic for producing a piezoelectric element having sufficient strength and hardness in spite of compactness is provided. The piezoelectric ceramic contains lead titanate as a primary component and about 0.1 to 5% by weight of tungsten in terms of WO3 relative to the primary component, and about 75% or more of crystal particles constituting the piezoelectric ceramic have particle diameters distributed in the range of about 0.2 &mgr;m to 0.8 &mgr;m.

公开(公告)号：US07969066B2

公开(公告)日：2011-06-28

申请号：US12894263

申请日：2010-09-30

申请人： Shigeharu Kasai ,  Satoshi Shindou ,  Koichi Hayashi

发明人： Shigeharu Kasai ,  Satoshi Shindou ,  Koichi Hayashi

IPC分类号： H01L41/083

CPC分类号： H01L41/0472 ,  F02M51/0603

摘要： In a multilayer piezoelectric actuator, external electrodes are formed on external surfaces of a multilayer piezoelectric body in which a plurality of internal electrodes and a plurality of piezoelectric layers are stacked on top of one another. Each of the external electrodes includes a base electrode and a stress-absorbing external-electrode member formed on the base electrode. The stress-absorbing external-electrode member is provided with an elastically deformable elastic structure, and a planar portion, which is continuous with the elastic structure and has at least an area sufficient for bonding a feeder terminal such as a lead line thereto.

摘要翻译： 在多层压电致动器中，外部电极形成在多层压电体的外表面上，其中多个内部电极和多个压电层彼此堆叠。 每个外部电极包括基极和形成在基极上的应力吸收外部电极部件。 应力吸收外部电极构件设置有可弹性变形的弹性结构，以及平面部分，其与弹性结构连续并且至少具有足以将诸如引线的馈电端子接合到其上的区域。

公开(公告)号：US20090236945A1

公开(公告)日：2009-09-24

申请号：US12478199

申请日：2009-06-04

申请人： Atsushi Yamamoto ,  Koji Ogiso ,  Koichi Hayashi

发明人： Atsushi Yamamoto ,  Koji Ogiso ,  Koichi Hayashi

IPC分类号： H01L41/187 ,  H01L41/24

CPC分类号： H01L41/083 ,  C04B35/491 ,  C04B35/493 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/408 ,  C04B2235/656 ,  C04B2235/75 ,  C04B2235/85 ,  H01L41/0477 ,  H01L41/1876 ,  H01L41/273 ,  Y10T29/42

摘要： A monolithic piezoelectric element includes an element assembly in which internal electrode layers and piezoelectric ceramic layers are laminated alternately. The internal electrode layers contain an Ag—Pd alloy, which has an Ag content of 85 percent by weight or more as a primary component, a metal element having a valence of at least one of pentavalence or hexavalence. The piezoelectric ceramic layers contain a composite oxide represented by Pb(Ti,Zr)O3 as a primary component, a part of Ag contained in the internal electrode layers is almost uniformly diffused therein and, the metal element is diffused in the form of a metal oxide in such a way that the concentration is reduced with decreasing proximity to the internal electrode layers. In this manner, a monolithic piezoelectric element having a desired large piezoelectric constant can be obtained without inviting an increase in cost even when a firing treatment is conducted at low temperatures.

摘要翻译： 单片压电元件包括​​其中内部电极层和压电陶瓷层交替层叠的元件组件。 内部电极层含有作为主要成分的Ag含量为85重量％以上的Ag-Pd合金，具有至少一种五价或六价铬的金属元素。 压电陶瓷层含有以Pb（Ti，Zr）O 3为主要成分的复合氧化物，内部电极层中所含的Ag的一部分几乎均匀地扩散，金属元素以金属的形式扩散 氧化物以使得浓度随着与内部电极层的接近程度的降低而降低。 以这种方式，即使在低温下进行焙烧处理，也可以获得具有期望的大压电常数的单片压电元件，而不会增加成本。

公开(公告)号：US20070056721A1

公开(公告)日：2007-03-15

申请号：US11516199

申请日：2006-09-06

申请人： Shoichiro Usui ,  Koichi Hayashi ,  Tadahiro Goto

发明人： Shoichiro Usui ,  Koichi Hayashi ,  Tadahiro Goto

IPC分类号： F28F1/40

CPC分类号： F28F3/025 ,  F02M26/11 ,  F02M26/32 ,  F28D7/1684 ,  F28D21/0003 ,  F28F1/40

摘要： A heat exchanger tube has an inner peripheral surface serving as an exhaust gas flow path with a flat cross-sectional shape. A thin structure is incorporated in the heat exchanger tube and has a substantially rectangular channel-shaped waveform in cross section. The corrugated fin structure has a curved surface forming waveform meandering with a predetermined wavelength in the lengthwise direction. The wave width of the channel-shaped waveform is H, the wavelength of the waveform meandering in the lengthwise direction is L and the amplitude of the waveform meandering in the lengthwise direction is A. The heat exchanger tube is formed so that H/L is set at 0.17 to 0.20 and the ration (G/H) of a gap G determined by H-A to H is set at −0.21 to 0.19.

摘要翻译： 热交换器管具有作为具有平坦横截面形状的废气流动路径的内周面。 在热交换器管中并入有薄的结构，并具有大致矩形的通道形状的横截面波形。 波纹状散热片结构具有在长度方向上以预定波长曲折的曲面形成波形。 通道形波形的波宽为H，长度方向曲折的波形波长为L，长度方向曲线的波形振幅为A.导热管形成为H / L为 设定为0.17〜0.20，将由HA〜H确定的间隙G的比例（G / H）设定为-0.21〜0.19。