The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2015
Filed:
Oct. 30, 2014
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Hiroyuki Wada, Nagaokakyo, JP;
Kohei Shimada, Nagaokakyo, JP;
Kenji Takagi, Nagaokakyo, JP;
Tomomi Koga, Nagaokakyo, JP;
Tomotaka Hirata, Nagaokakyo, JP;
Hitoshi Nishimura, Nagaokakyo, JP;
Hiroki Awata, Nagaokakyo, JP;
Sui Uno, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
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 ABOwhere 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 (C) in the third ceramic layers is compared to a rare-earth element concentration (C) in outermost layer portions including at least outermost surfaces of the first and second outer layer portions, C>C(inclusive of C=0).