ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,894, issued on Nov. 11, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Gas sensor" was invented by Yusuke Watanabe (Nagoya, Japan), Shotaro Niizuma (Kasugai, Japan), Toshihiro Hirakawa (Kasugai, Japan) and Hayami Aota (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas sensor includes: a laminate formed of a plurality of layers including at least one layer of a solid electrolyte; a reference gas chamber formed in the laminate and containing a reference gas; and a reference electrode partially exposed in the reference gas chamber. A portion which is not exposed in the reference gas chamber, of the reference electrode is sandwic...