ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,798, issued on May 5, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Gas sensor element and gas sensor" was invented by Yusuke Watanabe (Nagoya, Japan) and Daichi Ichikawa (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a gas sensor element or the like in which a diffusion mode of NOx reaching a measurement electrode is changed from molecular diffusion to a mode of diffusing while repeatedly colliding with a wall face of a sufficiently narrow flow path. In a gas sensor element according to one aspect of the present invention, a porous diffusion layer covering a measurement electrode has a porosity that is lower than th...