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:
Oct. 26, 2021
Filed:
Oct. 22, 2019
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Assignee:
MURATA MANUFACTURING COMPANY, LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/49 (2006.01); H01G 4/008 (2006.01); H01G 4/12 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1218 (2013.01); C04B 35/49 (2013.01); H01G 4/008 (2013.01); H01G 4/1236 (2013.01);
Abstract
A dielectric ceramic composition includes, as a main component, a perovskite compound containing Sr and Zr and may contain Ca and/or Ti, further contains Li and Si, and may contain Mn. When a total content of Zr and Ti is 100 parts by mol, a total content (100×m) of parts by mol of Sr and Ca is 0.8≤m≤1.3, a content a of parts by mol of Mn is 0≤a≤10, a content b of parts by mol of Li is 5≤b≤15, a content c of parts by mol of Si is 20≤c≤40, a molar ratio x of Ca/(Sr+Ca) is 0≤x≤0.8, and a molar ratio y of Ti/(Zr+Ti) is 0≤y≤0.5.