US Patent Issued to TOPPAN on March 3 for "Fire stopper" (Japanese Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,745, issued on March 3, was assigned to TOPPAN INC. (Tokyo).

"Fire stopper" was invented by Tsukasa Yamazaki (Tokyo), Ryo Shoda (Tokyo), Junya Tanabe (Tokyo) and Ryohei Tode (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fire stopper includes a fire extinguishing agent-containing layer and a resin substrate arranged in this order."

The patent was filed on July 20, 2022, under Application No. 17/868,981.

*For further information, including images, charts and tables, please visit: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=12564745&OS=12564745&R...