ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,645, issued on June 3, was assigned to YAMATO PROTEC Corp. (Tokyo).

"Fire extinguisher" was invented by Shogo Tomiyama (Inashiki-gun, Japan), Tatsuki Endo (Inashiki-gun, Japan) and Wataru Kobayashi (Inashiki-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a fire extinguisher capable of easily installing a thinly molded fire extinguishing agent. A fire extinguisher of the present invention comprises a fire extinguishing agent layer that generates aerosol by combustion, a first plate covering a first surface of the fire extinguishing agent layer and having a blowout aperture for the aerosol, and a second plate c...