US Patent Issued to TOPPAN HOLDINGS on July 28 for "Fire extinguishing body" (Japanese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,312, issued on July 28, was assigned to TOPPAN HOLDINGS INC. (Tokyo).

"Fire extinguishing body" was invented by Yusaku Honjo (Tokyo), Masato Kurokawa (Tokyo), Ryo Shoda (Tokyo) and Junya Tanabe (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fire extinguishing body comprising a packaging bag formed from one or more substrates each comprising a resin layer, and a deliquescent fire extinguishing agent sealed in the packaging bag, the packaging bag having a sealing part at its peripheral edge, and the adhesion strength between the substrates in the sealing part being 5 N/15 mm or more."

The patent was filed on Dec. 28, 2023, under Application ...