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:
Jun. 07, 2016
Filed:
Sep. 30, 2014
Tdk Corporation, Tokyo, JP;
Yoshikazu Shimura, Tokyo, JP;
Kazuhiko Itoh, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A semiconductor ceramic composition which includes a compound represented by the following formula (1) as a main component, (BaBiARE)(TiTM)O(1) (wherein, A is at least one element selected from Na or K, RE is at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Gd, Dy and Er, TM is at least one element selected from the group consisting of V, Nb and Ta, w, x, y, z and m satisfy the following relationships of (2)˜(5), 0.007≦x≦0.125 (2), x<y≦2.0x (3), 0≦(w+z)≦0.01 (4), 0.94≦m≦0.999 (5)). And the semiconductor ceramic composition includes Ca in a proportion of 0.01˜0.055 mol in terms of element relative to 1 mol of Ti sites.