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:
Jul. 01, 2014
Filed:
Mar. 12, 2009
Takeshi Shimada, Osaka, JP;
Kentaro Ino, Osaka, JP;
Toshiki Kida, Tottori, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
To improve jump characteristic of BaTiO—(BiNa)TiOmaterial. There is provided a process for producing a semiconductive porcelain composition in which a part of Ba is substituted with Bi—Na, the process including a step of preparing a (BaQ)TiOcalcined powder (in which Q is a semiconductor dopant), a step of preparing a (BiNa)TiOcalcined powder, a step of mixing the (BaQ)TiOcalcined powder and the (BiNa)TiOcalcined powder, a step of molding and sintering the mixed calcined powder, and a step of heat-treating the obtained sintered body at 600° C. or lower; and a PCT heater employing the element prepared by the above steps.