公开(公告)号：US06746980B2

公开(公告)日：2004-06-08

申请号：US10013499

申请日：2001-12-13

Applicant: Kouji Tokita ,  Hideki Sakai ,  Shuuji Aisawa ,  Tadahiko Horiguchi

Inventor： Kouji Tokita ,  Hideki Sakai ,  Shuuji Aisawa ,  Tadahiko Horiguchi

IPC: C04B35468

CPC classification number: C04B35/4682

Abstract: A dielectric ceramic composition having high static capacitance and high dielectric constant and satisfying X7R characteristics and a multilayer ceramic capacitor using the same is provided. The dielectric ceramic composition comprises barium titanate as a main component, and comprises magnesium oxide, dysprosium oxide, barium oxide, calcium oxide, and vanadium oxide, as subcomponents, wherein magnesium oxide converted into MgO is 1 to 3 mol, dysprosium oxide converted into Dy2O3 is 1 to 5 mol, total of barium oxide and calcium oxide converted into BaO and CaO, respectively, is 0.1 to 5 mol, and vanadium oxide converted into V2O5 is 0.01 to 0.1 mol, when barium titanate converted into BaTiO3 is 100 mol.

Abstract translation: 提供具有高静电电容和高介电常数并且满足X7R特性的电介质陶瓷组合物和使用其的多层陶瓷电容器。 电介质陶瓷组合物包含钛酸钡作为主要成分，并且包含氧化镁，氧化镝，氧化钡，氧化钙和氧化钒作为副成分，其中转化成MgO的氧化镁为1〜3摩尔，氧化镝转化为Dy2O3 转化成BaO和CaO的氧化钡和氧化钙的总量分别为1-5mol，氧化钛和CaO分别为0.1〜5mol，转化成BaTiO 3的钛酸钡为100mol时，转化成V2O5的氧化钒为0.01〜0.1mol。

公开(公告)号：US5861350A

公开(公告)日：1999-01-19

申请号：US873587

申请日：1997-06-12

Applicant: Toru Mori ,  Tadahiko Horiguchi ,  Shinji Ito

Inventor： Toru Mori ,  Tadahiko Horiguchi ,  Shinji Ito

IPC: C04B35/49 ,  C04B35/493 ,  C04B35/499 ,  H01B3/12 ,  C04B35/472

CPC classification number: C04B35/499 ,  C04B35/493

Abstract: A dielectric ceramic composition is herein disclosed which comprises four lead-containing perovskite compounds of (a) lead magnesium tungstate �Pb(Mg.sub.1/2 W.sub.1/2)O.sub.3 !, (b) lead nickel niobate �Pb(Ni.sub.1/3 Nb.sub.2/3)O.sub.3 !, (c) lead titanate (PbTiO.sub.3) and (d) lead zirconate (PbZrO.sub.3) as main components and which further contains an oxide of a rare earth element; and by adjusting a molar ratio of the components (a) to (d) and an amount of the oxide of the rare earth element in specific ranges, there can be obtained the dielectric ceramic composition suitable for a dielectric substance for a multilayer ceramic capacitor which has a low firing temperature, a high dielectric constant at room temperature and a low change rate of the dielectric constant to temperature.

Abstract translation: 本文公开了一种介电陶瓷组合物，其包含四种含铅的钙钛矿化合物（a）钨酸铅镁[Pb（Mg1 / 2W1 / 2）O3]，（b）铅铌酸铅[Pb（Ni1 / 3Nb2 / 3）O3 ]，（c）钛酸铅（PbTiO 3）和（d）锆酸铅（PbZrO 3）作为主要成分，并且还含有稀土元素的氧化物; 通过调整成分（a）〜（d）的摩尔比和特定范围的稀土类元素的氧化物的量，可以得到适用于多层陶瓷电容器的电介质的电介质陶瓷组合物， 具有低的焙烧温度，室温下的高介电常数和介电常数与温度的低变化率。

公开(公告)号：US5904911A

公开(公告)日：1999-05-18

申请号：US31763

申请日：1998-02-27

Applicant: Toru Mori ,  Atsushi Ochi ,  Shinji Ito ,  Hiroshi Ishikawa ,  Tadahiko Horiguchi

Inventor： Toru Mori ,  Atsushi Ochi ,  Shinji Ito ,  Hiroshi Ishikawa ,  Tadahiko Horiguchi

IPC: C04B35/00 ,  C01G45/00 ,  C01G45/02 ,  C01G53/00 ,  H01B3/12 ,  H01G4/12 ,  C01B13/14 ,  C01G49/00 ,  H01M4/50 ,  C01F13/14

CPC classification number: C01G41/006 ,  C01G45/006 ,  C01G45/125 ,  C01G53/006 ,  H01G4/1209 ,  C01P2002/34 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/20 ,  C01P2004/61 ,  C01P2006/40

Abstract: There are herein disclosed a raw material for a complex perovskite ceramic composition which is intended to uniformly disperse a trace amount of an addition component (manganese) therein, and a process for preparing the ceramic composition.A manganese-containing composite oxide is represented by the general formula (Mn.sub.a MeI.sub.1-a)MeII.sub.b O.sub.c wherein a is a value in the range of 0

Abstract translation: 本文公开了用于均匀分散微量添加成分（锰）的复合钙钛矿陶瓷组合物的原料及其制备方法。 含锰复合氧化物由通式（MnaMeI-a）MeIIbOc表示，其中+ E，uns a + EE是在0 <+ E，uns a +EE≤0.3的范围内的值; MeI是Mg，Ni和Zn中的至少一种; MeII是Nb，Ta和W之一; 当MeII是Nb或Ta，+ E时，uns b + EE是2和+ E，uns c + EE是6，或者当MeII是W，+ E时，uns b + EE是1和+ E，uns c + EE 通过使用含有该含锰复合氧化物的原料，可以制备含Mn的复合钙钛矿化合物组合物，其含有Mn和至少一种由通式Pb（BIBII）表示的复合钙钛矿化合物， 其中BI是Mg，Ni和Zn之一; BII是Nb，Ta和W之一。

公开(公告)号：US06617762B2

公开(公告)日：2003-09-09

申请号：US09921319

申请日：2001-08-02

Applicant: Masayuki Kurano ,  Tadahiko Horiguchi

Inventor： Masayuki Kurano ,  Tadahiko Horiguchi

IPC: H01L4108

CPC classification number: H01L41/083 ,  G11B5/5552 ,  H01L41/0533 ,  H01L41/338

Abstract: In a microactuator device (2) having a cut face formed by cutting or splitting, the cut face is subjected to anti-release treatment for preventing release of particles produced by cutting. The microactuator device may have a multilayer structure including a plurality of piezoelectric elements and a plurality of internal electrodes alternately laminated. In this case, the multilayer structure has the above-mentioned cut face. It is preferable that the microactuator device is mounted between a base plate (3) to be fixed and a support spring (5) for supporting a head (4), and that the microactuator device and portions of the base plate and the support spring which are adjacent to the microactuator device are collectively coated with a coating film.

Abstract translation: 在具有通过切割或分割形成的切割面的微型致动器装置（2）中，对切割面进行防
止处理，以防止由切割产生的颗粒的释放。 微致动器装置可以具有包括交替层压的多个压电元件和多个内部电极的多层结构。 在这种情况下，多层结构具有上述切割面。 优选地，微型致动器装置安装在待固定的基板（3）和用于支撑头部（4）的支撑弹簧（5）之间，并且微型致动器装置以及基板和支撑弹簧的部分 与微致动器装置相邻地共同涂覆有涂膜。