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. 01, 2019
Filed:
Jul. 15, 2015
Ngk Insulators, Ltd., Nagoya-shi, Aichi, JP;
Osamu Nakasone, Inabe, JP;
Takayuki Sakurai, Kakamigahara, JP;
Satoshi Nishikawa, Chita, JP;
Shotaro Niizuma, Kasugai, JP;
Noriko Hirata, Nagoya, JP;
Yuki Nakayama, Nagoya, JP;
NGK INSULATORS, LTD., Nagoya, JP;
Abstract
A sensing electrode for sensing a predetermined gas component of a measurement gas, which is provided in a mixed-potential gas sensor that measures the concentration of the predetermined gas component, is formed of a cermet containing a noble metal and an oxygen-ion conductive solid electrolyte. The noble metal comprises Pt and Au. An Au abundance ratio, which is an area ratio of a portion covered with Au to a portion at which Pt is exposed in a surface of noble metal particles forming the sensing electrode, is 0.3 or more.