ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,253, issued on Nov. 18, was assigned to HITACHI LTD. (Tokyo).

"Corrosive environment monitoring system and corrosive environment monitoring method" was invented by Rintarou Minamitani (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Prepared is a layered body comprising: an insulation plate; a base metal thin film formed on the insulation plate; and a sensing metal thin film which is formed on at least a partial area of the base metal thin film, is more easily corroded by a corrosive substance than the base metal thin film, and has a lower resistance value than the base metal thin film. A corrosive environment monitoring sensor includes this la...