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:
Aug. 09, 2011
Filed:
Mar. 12, 2009
Kentaro Ino, Osaka, JP;
Takeshi Shimada, Osaka, JP;
Kentaro Ino, Osaka, JP;
Takeshi Shimada, Osaka, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A semiconductive porcelain composition/electrode assembly which is low in room temperature resistivity of 100 Ω·cm or less and is reduced in change with the passage of time due to energization with regard to the semiconductive porcelain composition in which a part of Ba of BaTiOis substituted with Bi—Na and which has a P-type semiconductive component at a crystal grain boundary. Also, there is a process for producing a semiconductive porcelain composition/electrode assembly wherein an electrode is joined to a semiconductive porcelain composition in which a part of Ba of BaTiOis substituted with Bi—Na and which has a P-type semiconductive component at a crystal grain boundary, the process including joining the electrode to the semiconductive porcelain composition, followed by conducting a heat treatment at a temperature of from 100° C. to 600° C. for 0.5 hour to 24 hours.