ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,550, issued on July 22, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Gas sensor" was invented by Taku Okamoto (Nagoya, Japan), Soichiro Yoshida (Nagoya, Japan) and Ryo Hashikawa (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas sensor includes a sensor element and a pump cell controller. During a normal operation time of the sensor element, the pump cell controller executes a normal time measurement pump control process of pumping out the oxygen in a measurement chamber by controlling a measurement pump cell so that voltage for measurement reaches a normal time target value. At the start-up time of the sensor element, the ...