ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,293, issued on Nov. 18, was assigned to NGK INSULATORS Ltd. (Nagoya, Japan).
"Sensor element and gas sensor" was invented by Michiaki Isoda (Nagoya, Japan), Kei Kosaka (Nagoya, Japan), Yosuke Noritake (Vernon Hills, Ill.) and Keita Kayano (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sensor element includes an element body, an upper connector electrode disposed on a first surface of the element body, and a protective layer that covers at least a front end-side part of the first surface. The protective layer includes a first specific protective layer having a thickness T1 of 10 micro metre or less. The ratio T1/T2 of the thickness T...