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.

Date of Patent:
Jun. 26, 2018

Filed:

Jul. 07, 2016
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;

Inventors:

Shinya Isota, Nagaokakyo, JP;

Tatsuya Izumi, Nagaokakyo, JP;

Tomotaka Hirata, Nagaokakyo, JP;

Yasuhiro Nishisaka, Nagaokakyo, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/12 (2006.01); C04B 35/49 (2006.01); H01G 4/30 (2006.01); H01G 4/008 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1245 (2013.01); C04B 35/49 (2013.01); H01G 4/1227 (2013.01); H01G 4/30 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3239 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/6583 (2013.01); C04B 2235/72 (2013.01); C04B 2235/768 (2013.01); C04B 2235/785 (2013.01); C04B 2237/595 (2013.01); C04B 2237/70 (2013.01); H01G 4/0085 (2013.01); H01G 4/12 (2013.01);
Abstract

A multilayer ceramic capacitor that includes a laminate which has a plurality of dielectric layers and a plurality of internal electrode layers respectively laminated. The dielectric layers are a perovskite type structure containing Ba, Sr, Zr, Ti and Hf, and optionally Ca, and further include V, wherein (number of moles of Sr)/(number of moles of Ba+number of moles of Ca+number of moles of Sr) is 0.6 to 0.95, (number of moles of Zr)/(number of moles of Zr+number of moles of Ti+number of moles of Hf) is 0.9 to 0.98, thicknesses of the dielectric layers are 1 μm or less, and an average particle size of dielectric particles constituting the dielectric layers is 0.8 μm or less.


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