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:
Apr. 20, 2020
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Hitoshi Furuta, Nagoya, JP;
Kentaro Kamada, Nagoya, JP;
Akinori Kojima, Nagoya, JP;
Satoshi Yamahara, Nagoya, JP;
Akihiro Hara, Nagoya, JP;
NITERRA CO., LTD., Nagoya, JP;
Abstract
A sensor element () including: a measurement chamber (); a pump cell () including a solid electrolyte (), an inner electrode () exposed to the measurement chamber, and an outer electrode (), the pump cell being configured to adjust an oxygen concentration in the measurement chamber; a diffusion resistance portion (); and a detection cell () configured to measure a concentration of a specific gas in the measurement target gas after the adjustment of the oxygen concentration. The outer electrode is covered by a porous layer () and is disposed in a hollow space (G) surrounded by a gas non-permeable dense layer. The hollow space is in communication with an air introduction hole () that is open on a rear side relative to the diffusion resistance portion. The outer electrode is exposed via the porous layer to air introduced through the air introduction hole.