ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,855, issued on Feb. 17, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Gas sensor" was invented by Yohei Goro (Nagoya, Japan), Yusuke Watanabe (Nagoya, Japan), Akihiro Nakajima (Nagoya, Japan) and Toshihiro Hirakawa (Kasugai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas sensor includes an element body, a pump cell, an impedance measurer, and a calculation unit. The pump cell has an inner electrode disposed in a measurement-object gas flow section of the element body, and an outer electrode disposed outside an element body to come into contact with a measurement-object gas, the pump cell being configured to adjust an oxygen conce...