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    • 3. 发明授权
    • Laminated ceramic capacitor
    • 层压陶瓷电容器
    • US09460852B2
    • 2016-10-04
    • US14210786
    • 2014-03-14
    • MURATA MANUFACTURING CO., LTD.
    • Hiroyuki WadaKohei ShimadaKenji TakagiTomomi KogaTomotaka HirataHitoshi NishimuraHiroki AwataSui Uno
    • H01G4/30H01G4/06H01G4/12
    • H01G4/1227H01G4/1218H01G4/30
    • A laminated ceramic capacitor having a laminated body composed of a plurality of ceramic layers for inner layers; a plurality of internal electrodes at the interfaces between the plurality of ceramic layers for inner layers; and a plurality of ceramic layers for outer layers, provided on the top and bottom so as to sandwich the plurality of ceramic layers for inner layers. The ceramic layers for inner layers are composed of a material containing a multiple oxide including an alkaline-earth metal. The ceramic layers for outer layers respectively have TiO2 ceramic layers containing TiO2 as their main constituent for certain layers including the outermost layers, and multiple oxide ceramic layers containing a multiple oxide including an alkaline-earth metal for the other layers.
    • 一种层叠陶瓷电容器,具有由多个内层用陶瓷层构成的层叠体, 在所述多个用于内层的陶瓷层之间的界面处的多个内部电极; 以及多个用于外层的陶瓷层,设置在顶部和底部,以便将多个陶瓷层夹在内层中。 内层的陶瓷层由含有碱土类金属的多重氧化物的材料构成。 用于外层的陶瓷层分别具有包含TiO 2作为其主要成分的TiO 2陶瓷层,其中包括最外层的某些层,以及包含用于其它层的包含碱土金属的多重氧化物的多个氧化物陶瓷层。
    • 7. 发明授权
    • Multilayer ceramic capacitor
    • 多层陶瓷电容器
    • US09042082B2
    • 2015-05-26
    • US14528996
    • 2014-10-30
    • Murata Manufacturing Co., Ltd.
    • Hiroyuki WadaKohei ShimadaKenji TakagiTomomi KogaTomotaka HirataHitoshi NishimuraHiroki AwataSui Uno
    • H01G4/06H01G4/228H01G4/12H01G4/012H01G4/224H01G4/248H01G4/30
    • H01G4/30H01G4/012H01G4/12H01G4/1209H01G4/1227H01G4/1245H01G4/224H01G4/248
    • A multilayer ceramic capacitor includes a ceramic main body including an inner layer portion including third ceramic layers and a plurality of inner electrodes arranged at interfaces between the third ceramic layers, and first and second outer layer portions respectively including first and second ceramic layers, the first and second ceramic layers being arranged vertically so as to sandwich the inner layer portion. The third ceramic layers and the first and second outer layer portions contain a perovskite-type compound represented by ABO3 where A contains one or more of Ba, Sr, and Ca, B contains one or more of Ti, Zr, and Hf, and O represents oxygen) as a main component. Where a rare-earth element concentration (CR) in the third ceramic layers is compared to a rare-earth element concentration (Cr) in outermost layer portions including at least outermost surfaces of the first and second outer layer portions, CR>Cr (inclusive of Cr=0).
    • 多层陶瓷电容器包括陶瓷主体,其包括内层部分,其包括第三陶瓷层和布置在第三陶瓷层之间的界面处的多个内电极以及分别包括第一和第二陶瓷层的第一和第二外层部分, 并且第二陶瓷层垂直布置以夹住内层部分。 第三陶瓷层和第一外层和第二外层部分含有由ABO 3表示的钙钛矿型化合物,其中A含有Ba,Sr和Ca中的一种或多种,​​B包含Ti,Zr和Hf中的一种或多种,​​O 代表氧)作为主要成分。 在将第三陶瓷层中的稀土元素浓度(CR)与至少包含第一和第二外层部分的最外表面的最外层部分中的稀土元素浓度(Cr)进行比较时,CR> Cr(包括 的Cr = 0)。