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    Ceramic powder, electroconductive paste using same, multilayer ceramic electronic component, and method for production thereof
    7.
    发明申请
    Ceramic powder, electroconductive paste using same, multilayer ceramic electronic component, and method for production thereof 审中-公开
    陶瓷粉末，使用其的导电性糊剂，多层陶瓷电子部件及其制造方法

    公开(公告)号：US20070211407A1

    公开(公告)日：2007-09-13

    申请号：US11714188

    申请日：2007-03-06

    申请人： Haruya Hara ,  Yasuo Watanabe ,  Akira Sato

    发明人： Haruya Hara ,  Yasuo Watanabe ,  Akira Sato

    IPC分类号： H01G4/008

    CPC分类号： H01G4/1227 ,  C01G23/006 ,  C01P2002/72 ,  C01P2004/40 ,  C01P2006/12 ,  H01G4/1209 ,  H01G4/30

    摘要： As the ceramic powder for addition to the electroconductive paste fated to form internal electrode layers in a multilayer ceramic electronic component resulting from alternately stacking the dielectric ceramic layers and internal electrode layers, a ceramic powder that possesses a perovskite-type crystal structure and satisfying the condition that the weight ratio Wt/Wc of the tetragonal phase content Wt and the cubic phase content Wc be less than 2 is used. The weight ratio Wt/Wc of the tetragonal phase and the cubic phase is determined by the polyphasic analysis in accordance with the Rietveld method. The ceramic powder is a barium titanate powder, for example.

    摘要翻译： 作为添加到导电浆料中的陶瓷粉末，由于交替层叠电介质陶瓷层和内部电极层而形成的多层陶瓷电子部件中形成内部电极层，所以具有钙钛矿型晶体结构且满足条件的陶瓷粉末 使用四方相含量Wt和立方相含量Wc的重量比Wt / Wc小于2。 通过根据Rietveld方法的多相分析确定四方相和立方相的重量比Wt / Wc。 陶瓷粉末是例如钛酸钡粉末。

    Dielectric ceramic composition, multilayer ceramic capacitor, and method for manufacturing the same
    9.
    发明申请
    Dielectric ceramic composition, multilayer ceramic capacitor, and method for manufacturing the same 审中-公开
    介电陶瓷组合物，多层陶瓷电容器及其制造方法

    公开(公告)号：US20050219794A1

    公开(公告)日：2005-10-06

    申请号：US11077281

    申请日：2005-03-11

    申请人： Toshihiro Iguchi ,  Haruya Hara ,  Kazushige Ito ,  Akira Sato ,  Shigeki Sato ,  Takashi Kojima

    发明人： Toshihiro Iguchi ,  Haruya Hara ,  Kazushige Ito ,  Akira Sato ,  Shigeki Sato ,  Takashi Kojima

    IPC分类号： C04B35/468 ,  H01G4/12 ,  H01G4/30 ,  H01G4/06

    CPC分类号： C04B35/4682 ,  C04B35/62665 ,  C04B35/6303 ,  C04B35/64 ,  C04B2235/3205 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3249 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3436 ,  C04B2235/3454 ,  C04B2235/6565 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/6588 ,  C04B2235/662 ,  H01G4/1227 ,  H01G4/30

    摘要： A dielectric ceramic composition contains components, with respective numbers of moles relative to 100 moles of barium titanate, including barium titanate, a first sub-component containing at least one oxide selected from a Mg oxide, a Ca oxide, a Ba oxide, and Sr oxide, a second sub-component containing an oxide containing 1 mol of Si atoms per mol, a third sub-component containing at least one oxide selected from a V oxide, a Mo oxide, and a W oxide, a fourth sub-component containing at least one R1 oxide (wherein R1 is at least one selected from Sc, Er, Tm, Yb, and Lu), a fifth sub-component containing at least one R2 oxide (wherein R2 is at least one selected from Y, Dy, Ho, Tb, Gd, and Eu), a sixth sub-component containing at least one selected from a Mn oxide and a Cr oxide, and a seventh sub-component containing at least one selected from calcium zirconate and a mixture of a Ca oxide and Zr oxide. The ratio (A/B) of the number of moles A of the second sub-component to the total number of moles B of the fourth and fifth sub-components is 0.7 or more. Alternatively, the ratio (C/D) of the number of moles C of Si atoms in the second sub-component to the total number of moles of the atoms in the first to seventh sub-components excluding the Si atoms and oxygen atoms being 0.2 or more, and the total number of moles of the fourth and fifth sub-components being 3 or more.

    摘要翻译： 电介质陶瓷组合物含有相对于100摩尔钛酸钡的摩尔数相对于钛酸钡的成分，含有选自氧化镁，氧化钙，氧化钡和Sr中的至少一种氧化物的第一副成分 氧化物，含有每摩尔含有1摩尔Si原子的氧化物的第二亚成分，含有选自V氧化物，Mo氧化物和W氧化物中的至少一种氧化物的第三副成分，含有 至少一个R 1氧化物（其中R 1是选自Sc，Er，Tm，Yb和Lu中的至少一种），第五子成分至少含有 一种R 2氧化物（其中R 2是选自Y，Dy，Ho，Tb，Gd和Eu中的至少一种），第六副成分至少含有 选自Mn氧化物和Cr氧化物的第一副成分，以及含有选自锆酸钙和氧化钙和Zr氧化物的混合物中的至少一种的第七副成分。 第二子成分的摩尔数A与第四和第五子成分的总摩尔数B的比（A / B）为0.7以上。 或者，第二次成分中的Si原子的摩尔数C与除Si原子和氧原子以外的第一〜第七子成分中的原子的总摩尔数的比率（C / D）为0.2 以上，第四和第五子成分的总摩尔数为3以上。

    Laminated Ceramic Capacitor
    10.
    发明申请
    Laminated Ceramic Capacitor 有权
    层压陶瓷电容器

    公开(公告)号：US20080253060A1

    公开(公告)日：2008-10-16

    申请号：US10593342

    申请日：2005-02-23

    申请人： Kazushige Ito ,  Haruya Hara ,  Toshihiro Iguchi ,  Shigeki Sato ,  Akira Sato ,  Takashi Kojima

    发明人： Kazushige Ito ,  Haruya Hara ,  Toshihiro Iguchi ,  Shigeki Sato ,  Akira Sato ,  Takashi Kojima

    IPC分类号： H01G4/12

    CPC分类号： C04B35/4682 ,  B32B18/00 ,  B32B2311/22 ,  C04B35/64 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/3436 ,  C04B2235/3454 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/6582 ,  C04B2235/6584 ,  C04B2235/662 ,  C04B2235/782 ,  C04B2235/785 ,  C04B2237/346 ,  C04B2237/40 ,  C04B2237/405 ,  C04B2237/704 ,  C04B2237/706 ,  H01B3/12 ,  H01G4/1227

    摘要： To provide a multilayer ceramic capacitor which has capacitance-temperature characteristics satisfying the X8R characteristic specified by the EIA standard and has capacitance with an excellent long-term stability.The object is achieved by a multilayer ceramic capacitor comprising a laminate including alternately stacked dielectric layers of a sintered compact composed of crystal particles of a dielectric porcelain composite and internal-electrode layers. The dielectric porcelain composite comprises a primary constituent containing barium titanate; a first accessory constituent composed of at least one of MgO, CaO, BaO, and SrO; a second accessory constituent containing silicon oxide as a major constituent; a third accessory constituent composed of at least one of V2O5, MoO3, and WO3; a fourth accessory constituent composed of an oxide of R1 (wherein R1 is at least one of Sc, Er, Tm, Yb, and Lu); a fifth accessory constituent composed of CaZrO3 or a combination of CaO and ZrO2; and a sixth accessory constituent composed of an oxide of R2 (wherein R2 is at least one of Y, Dy, Ho, Tb, Gd, and Eu). In the case of 100 moles of barium titanate, there are 0.1 to 3 moles of the first accessory constituent, 2 to 10 moles of the second accessory constituent, 0.01 to 0.5 moles of the third accessory constituent, 0.5 to 7 moles of the fourth accessory constituent (wherein the number of moles of the fourth accessory constituent is that of R1 alone), more than 0 but not more than 5 moles of the fifth accessory constituent, and more than 0 but not more than 9 moles of the sixth accessory constituent. The crystal particles constituting the dielectric layers have an average particle diameter of not less than 0.2 μm and less than or equal to 0.55 μm.

    摘要翻译： 提供具有满足EIA标准规定的X8R特性的电容温度特性并具有优异的长期稳定性的电容的多层陶瓷电容器。 该目的是通过一种层叠陶瓷电容器来实现的，所述多层陶瓷电容器包括由电介质瓷复合材料和内部电极层的晶体颗粒构成的烧结体的交替层叠电介质层的叠层体。 介电瓷复合材料包含含钛酸钡的主要成分; 由MgO，CaO，BaO和SrO中的至少一种构成的第一辅助成分; 含有氧化硅作为主要成分的第二辅助成分; 由V 2 O 5，MoO 3 3和WO 3 3中的至少一种构成的第三辅助成分; 由R1的氧化物（其中R1是Sc，Er，Tm，Yb和Lu中的至少一种）组成的第四附属成分; 由CaZrO 3 3或CaO和ZrO 2 2的组合组成的第五附属成分; 和由R2的氧化物（其中R2是Y，Dy，Ho，Tb，Gd和Eu中的至少一种）构成的第六附属成分。 在100摩尔钛酸钡的情况下，第一辅助成分为0.1〜3摩尔，第二副成分为2〜10摩尔，第三副成分为0.01〜0.5摩尔，第四附属物为0.5〜7摩尔 构成（其中第四辅助成分的摩尔数为单独的R1的摩尔数），大于0但不超过5摩尔的第五附属成分，大于0但不大于9摩尔的第六附属成分。 构成电介质层的结晶粒子的平均粒径为0.2μm以上且小于等于0.55μm。