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:
Mar. 22, 2011
Filed:
Oct. 26, 2007
Takeshi Shimada, Saitama, JP;
Kazuya Toji, Osaka, JP;
Takeshi Shimada, Saitama, JP;
Kazuya Toji, Osaka, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
It is intended to provide a semiconductor ceramic composition capable of shifting the Curie temperature to a positive direction as well as of obtaining an excellent jump characteristic while suppressing an increase in room temperature resistivity to a minimum value. There is provided a semiconductor ceramic composition in which a portion of Ba of BaTiOis substituted by Bi—Na, the semiconductor ceramic composition being obtained by sintering a mixed calcined powder of a BT calcined powder containing (BaR)TiOor Ba(TiM)O(wherein each of R and M is a semiconductive dopant), wherein a part of BaCOand TiOare remained therein; and a BNT calcined powder containing a (BiNa)TiOpowder.