ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,058, issued on Nov. 4, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).

"Gas sensor and concentration measurement method using gas sensor" was invented by Yuichiro Kondo (Obu, Japan) and Taku Okamoto (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor element includes first to third chambers communicating sequentially from a gas inlet, voltages are intermittently applied across inner electrodes facing the respective chambers and a reference pump electrode to perform pumping of oxygen between a measurement gas and the reference pump electrode being in contact with a reference gas, thereby to reduce H2O and CO2 in the measurement...