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    • 2. 发明授权
    • Method of producing a monolithic ceramic capacitor
    • 制造叠层陶瓷电容器的方法
    • US06442813B1
    • 2002-09-03
    • US09058081
    • 1998-04-09
    • Norihiko SakamotoHarunobu SanoTakaharu Miyazaki
    • Norihiko SakamotoHarunobu SanoTakaharu Miyazaki
    • H01G907
    • H01G4/30Y10T29/43Y10T29/435Y10T29/49126
    • A monolithic ceramic capacitor includes a plurality of dielectric ceramic layers, a plurality of inner electrodes formed between the dielectric ceramic layers in such a manner that one end of each inner electrode is exposed out of either end of the dielectric ceramic layers, and outer electrodes electrically connected with the exposed inner electrodes; in which the inner electrodes each are made of a base metal, and Si oxide layers or layers comprising an Si oxide and at lest one component that constitutes said dielectric ceramic layers and said inner electrodes are formed adjacent to the inner electrodes. The capacitor has excellent thermal impact resistance and wet load resistance characteristics. A producing method includes firing a green sheet laminate including a metal inner electrode at an oxygen partial pressure of about said equilibrium oxygen partial pressure of the metal to the metal oxide.
    • 单片陶瓷电容器包括多个电介质陶瓷层,多个内电极,形成在电介质陶瓷层之间,使每个内电极的一端从电介质陶瓷层的任一端露出,外电极电 与暴露的内部电极连接; 其中内部电极各自由贱金属制成,并且包括Si氧化物的Si氧化物层或构成所述介电陶瓷层和所述内部电极的至少一个部件的Si形成在与内部电极相邻的位置。 电容器具有优异的耐热冲击性和耐湿负载特性。 一种制造方法包括以大约金属的平衡氧分压的氧分压与金属氧化物烧结包含金属内电极的生片层压体。
    • 3. 发明授权
    • Dielectric ceramic composition and monolithic ceramic capacitor
    • 介电陶瓷组合物和单片陶瓷电容器
    • US06310761B1
    • 2001-10-30
    • US09655071
    • 2000-09-05
    • Kenji HoriKotaro HataToshihiro IkamatsuTomoyuki NakamuraHarunobu Sano
    • Kenji HoriKotaro HataToshihiro IkamatsuTomoyuki NakamuraHarunobu Sano
    • H01G406
    • C04B35/4682C01G23/002C01P2004/61C01P2006/40H01G4/1227
    • A dielectric ceramic composition is composed of barium titanate (BamTiO3), a rare-earth oxide (RO3/2), where the rare-earth element is at least one of Y, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm and Yb, calcium oxide and a silicon oxide. When the dielectric ceramic composition is represented by the formula 100BamTiO3+aRO3/2+bCaO+cSiO2, where coefficients 100, a, b, and c indicate moles, the relationships 0.990≦m≦1.030, 0.5≦a≦30, 0.5≦b≦30, and 0.5≦c≦30 are satisfied. A monolithic ceramic capacitor includes a plurality of dielectric ceramic layers, internal electrodes formed between the dielectric ceramic layers and external electrodes electrically connected to the internal electrodes. The dielectric ceramic layers are composed of the dielectric ceramic composition described above, and the internal electrodes are composed of a base metal as a principal constituent.
    • 介电陶瓷组合物由稀土元素为Y,Sm,Eu,Gd,Tb,Dy,Ho,Er中的至少一种的钛酸钡(BamTiO 3),稀土类氧化物(RO3 / 2) ,Tm和Yb,氧化钙和氧化硅。 当电介质陶瓷组合物由式100BamTiO3 + aRO3 / 2 + bCaO + cSiO2表示时,其中系数100,a,b和c表示摩尔数,关系0.990 <= m <= 1.030,0.5 <= a <= 30 ,0.5 <= b <= 30,满足0.5 <= c <30。 单片陶瓷电容器包括多个电介质陶瓷层,形成在电介质陶瓷层和电连接到内部电极的外部电极之间的内部电极。 电介质陶瓷层由上述介电陶瓷组合物构成,内部电极以贱金属为主要成分。
    • 4. 发明授权
    • Dielectric ceramic composition and laminated ceramic parts
    • 介电陶瓷组合物和层压陶瓷部件
    • US06195250B1
    • 2001-02-27
    • US09394419
    • 1999-09-13
    • Hiroaki MatobaHarunobu Sano
    • Hiroaki MatobaHarunobu Sano
    • H01G406
    • C04B35/4686H01G4/1227
    • Laminated ceramic parts such as a laminated ceramic condenser and a laminated LC filter are formed by using a temperature compensating dielectric ceramic composition having a high relative dielectric constant and a high Q value, and which can be sintered at a relatively low temperature during the manufacturing processes, without causing any undesired variations in ceramic properties during the sintering treatment. The composition includes 100 parts by weight of a main component having a mole composition ratio (BaO, TiO2, Re2O3) shown in a ternary composition diagram indicated by an area surrounded by point A (39.5. 59.5, 1), point B (1, 59.5, 39.5), point C (1, 85, 14) and point D (14, 85, 1); about 25 parts by weight or less of a lead free B2O3—SiO2 glass; at least one of V oxide (the content as V2O5 being about 10 parts by weight or less) and W oxide (the content as WO3 being about 20 parts by weight or less). Preferably, the composition further contains either about 10 parts by weight or less of CuO, or about 20 parts by weight or less of MnO.
    • 通过使用具有高相对介电常数和高Q值的温度补偿介电陶瓷组合物来形成层压陶瓷电容器和层叠LC滤波器之类的层压陶瓷部件,并且可以在制造过程中在相对低的温度下烧结 ,而不会在烧结处理期间引起陶瓷性能的任何不期望的变化。 该组合物包含100重量份具有以由A点(39.5,59.5,1)包围的区域表示的三元组成图所示的摩尔组成比(BaO,TiO 2,Re 2 O 3)的主要成分,B(1, 59.5,39.5),C点(1,85,14)和D点(14,85,1); 约25重量份或更少的无铅B2O3-SiO2玻璃; V氧化物(V 2 O 5的含量为约10重量份以下)和W氧化物(WO 3的含量为约20重量份以下)中的至少一种。 优选地,组合物还含有约10重量份或更少的CuO,或约20重量份或更少的MnO。
    • 7. 发明授权
    • Production of dielectric ceramic material powder
    • 电介质陶瓷材料粉末的生产
    • US5554571A
    • 1996-09-10
    • US538335
    • 1995-10-03
    • Shinsei OkabeSakiko IwamotoHarunobu Sano
    • Shinsei OkabeSakiko IwamotoHarunobu Sano
    • C01G25/00C01G27/00C04B35/49C04B35/626
    • C01G27/006C01G25/006C04B35/49C04B35/626C01P2002/34
    • Powder of dielectric ceramic materials is produced by preparing a main component Ba(Ti.sub.1-x-y Zr.sub.x Hf.sub.y)O.sub.3 allowing barium hydroxide, at least one titanium compound, at least one zirconium compound and at least one hafnium compound to react with one another by condensation by catalytic actions of a base selected from the group consisting of alkali and amines; preparing a complex hydroxide of at least one rare earth element and manganese by allowing at least one rare earth element compound and a manganese compound to react with a base selected from the group consisting of alkali and amines in an aqueous solution; preparing at least one carbonate of calcium and magnesium by allowing at least one compound of calcium compounds and magnesium compounds to react with carbonate ions in an aqueous solution; mixing all the precipitates, and drying and thermally treating the resultant mixture.
    • 电介质陶瓷材料的粉末是通过制备主要成分Ba(Ti1-x-yZrxHfy)O3来制备的,所述主要组分Ba(Ti1-x-yZrxHfy)O3允许氢氧化钡,至少一种钛化合物,至少一种锆化合物和至少一种铪化合物彼此反应, 选自碱和胺的碱的催化作用; 通过在水溶液中使至少一种稀土元素化合物和锰化合物与选自碱和胺的碱反应来制备至少一种稀土元素和锰的复合氢氧化物; 通过使至少一种化合物的钙化合物和镁化合物与水溶液中的碳酸根离子反应来制备至少一种钙和镁的碳酸盐; 混合所有沉淀物,并干燥并热处理所得混合物。