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. 09, 2024
Filed:
Feb. 03, 2021
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Assignee:
ROHM Co., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01); G01N 27/409 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4071 (2013.01); G01N 27/409 (2013.01); G01N 27/4075 (2013.01);
Abstract
Disclosed herein is a limiting-current type gas sensor including a solid electrolyte, a first electrode disposed on the solid electrolyte, a second electrode disposed on the solid electrolyte, and a gas feed passage extending between a gas inlet and a first portion of the first electrode, the first portion facing the solid electrolyte. The first electrode is a first porous metal electrode. The gas feed passage is formed of a first porous transition metal oxide having a second melting point higher than a first melting point of the first electrode. The first porous transition metal oxide is TaO, TiO, or CrO.