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. 20, 2026
Filed:
Mar. 09, 2021
Applicant:
Maxell, Ltd., Kyoto, JP;
Inventors:
Assignee:
MAXELL, LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/404 (2006.01); G01N 27/30 (2006.01); G01N 27/413 (2006.01);
U.S. Cl.
CPC ...
G01N 27/413 (2013.01); G01N 27/304 (2013.01); G01N 27/404 (2013.01);
Abstract
An electrochemical oxygen sensor according to the present invention includes a positive electrode, a negative electrode, and an electrolyte solution constituted by an aqueous solution, in which the negative electrode includes a metal containing, as a main component, an element M selected from Sn and Ni, the electrolyte solution is an aqueous solution having a pH of 3 to 10, the positive electrode includes a catalyst layer containing a catalytic metal, and the catalyst layer includes, on a surface that is in contact with the electrolyte solution, a surface layer containing the element M.