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:
Jan. 02, 2007
Filed:
Apr. 21, 2003
Applicants:
Kunihiko Nakagaki, Nagoya, JP;
Hideyuki Suzuki, Kasugai, JP;
Sang Jae Lee, Ama-Gun, JP;
Osamu Nakasone, Inabe-Gun, JP;
Inventors:
Kunihiko Nakagaki, Nagoya, JP;
Hideyuki Suzuki, Kasugai, JP;
Sang Jae Lee, Ama-Gun, JP;
Osamu Nakasone, Inabe-Gun, JP;
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/30 (2006.01); G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
Abstract
A detecting electrode comprises a first cermet electrode layer formed directly on a solid electrolyte layer and a second cermet electrode layer formed on the first cermet electrode layer. A ratio between an alloy of Pt—Rh and ZrOin the first cermet electrode layer ranges from 20:80 to 50:50 by volume ratio. On the other hand, a ratio between an alloy of Pt—Rh and ZrOin the second cermet electrode layer ranges from 60:40 to 50:50 by volume ratio.