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. 05, 2005
Filed:
Oct. 25, 2000
Toru Nagai, Chiba, JP;
Noriko Yamada, Chiba, JP;
Wataru Ito, Chiba, JP;
Hitoshi Dohnomae, Chiba, JP;
Tadashi Sakon, Chiba, JP;
Toru Nagai, Chiba, JP;
Noriko Yamada, Chiba, JP;
Wataru Ito, Chiba, JP;
Hitoshi Dohnomae, Chiba, JP;
Tadashi Sakon, Chiba, JP;
Nippon Steel Corporation, , JP;
Abstract
A ceramic composite with a mixed conducting oxide that has perovskite type crystal structure of {LnA}{BB'B″}Owhere a, x, y, and z are within the range of 0.8≦a≦1, 0<x, 0<y≦0.5, 0≦z≦0.2, 0.98≦x+y+z≦1.02, and δ denotes a value that is determined so as to meet a charge neutralization condition. A denotes a combination of one or more kinds of elements selected out of Ba, Sr, and Ca. B denotes a combination of one or more kinds of elements selected out of Co, Fe, Cr, and Ga, the combination always containing Fe or Co. B′ denotes a combination of one or more kinds of elements selected out of Nb, Ta, Ti, and Zr, the combination always containing Nb or Ta. The present invention is also directed to a mixed conducting oxide and a ceramic composite. The mixed conducting oxide is of formula AFeOA is selected out of Ba, Sr, and Ca, and is within the range of 0.98≦x≦1.02, and δ denotes a value determined so as to meet the charge neutralization conditions.