ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,474, issued on Aug. 11, was assigned to Panasonic Intellectual Property Management Co. Ltd. (Osaka, Japan).

"Gas sensor using ionic liquid" was invented by Chiaki Shido (Kyoto, Japan) and Atsuo Nakao (Nara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas sensor includes a sensitive portion and a plurality of electrodes arranged via the sensitive portion. The sensitive portion includes an ionic liquid and is configured to have electrical resistance that changes when the sensitive portion adsorbs a gas molecule. The ionic liquid preferably includes a hydrophobic anion. The hydrophobic anion preferably includes an organic fluorine compound. ...