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:
Apr. 15, 2014
Filed:
Mar. 23, 2011
Hayato Katsu, Nagaokakyo, JP;
Hayato Katsu, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-Fu, JP;
Abstract
Provided is a barium titanate-based semiconductor ceramic composition which contains no Pb, which can have an increased Curie temperature, which exhibits slight deterioration with time, and which has high reliability, containing a barium titanate-based semiconductor ceramic represented by the composition formula (BaSr(A1Bi)A2)TiO, where A1 is an alkali metal element, A2 is a rare-earth element, 0.03≦x≦0.20, 0.02≦y≦0.20, and 0.0005≦z≦0.015, and x−0.10≦y≦(5/4)·x. In addition, 0.01 to 0.20 molar parts of Mn per 100 molar parts of Ti is preferably added thereto.