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. 24, 2023
Filed:
Mar. 06, 2019
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Midori Matsumura, Nagoya, JP;
Hiroshi Isomura, Nagoya, JP;
Kazuki Yoshioka, Nagoya, JP;
Ryosuke Ota, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
Disclosed is a gas sensor element having: a solid electrolyte body containing oxygen-ion conductive ZrO; a detection electrode disposed on the solid electrolyte body to be exposed to a gas under measurement; and a reference electrode disposed on the solid electrolyte body to be exposed to a reference gas. In the gas sensor element, the detection electrode contains Pt and ZrO; the detection electrode has a thickness of 3 to 10 μm; the amount of ZrOcontained relative to Pt in the detection electrode is 12 to 18 wt %; the detection electrode has a porosity of 5% or lower; and, in a particle size distribution graph of ZrOparticles in the detection electrode, a cumulative value of peaks appearing in a range of 0.025 μm to 0.200 μm is 60 to 75%, and a cumulative value of peaks appearing in a range of 1.000 μm to 3.162 μm is 2 to 7%.