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. 08, 2014
Filed:
Aug. 16, 2011
Hiroshi Watanabe, Kitanagoya, JP;
Yasuyuki Okimura, Inuyama, JP;
Shinji Ban, Gifu, JP;
Takeshi Mitsuoka, Konan, JP;
Hiroshi Watanabe, Kitanagoya, JP;
Yasuyuki Okimura, Inuyama, JP;
Shinji Ban, Gifu, JP;
Takeshi Mitsuoka, Konan, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A conductive sintered oxide which includes: a conductive crystal phase having a perovskite structure represented by (RESr)MO, in which RE is a group of elements consisting of Yb and/or Lu and at least one element selected from Group IIIA elements excluding Yb, Lu and La, and M is a group of elements consisting of Al and at least one element selected from Groups IVA, VA, VIA, VIIA and VIII, a first insulating crystal phase represented by REO, and a second insulating crystal phase represented by SrAlO. The conductive crystal phase has a coefficient c satisfying 0.18<c<0.50 and has a coefficient d satisfying 0.67≦d≦0.93. A content of a third insulating crystal phase represented by REAlO, the content of which may be zero, is smaller than the content of each of the first and second insulating crystal phases.