US Patent Issued to Dai Nippon Printing on April 21 for "Valve device and assembled battery" (Japanese Inventor)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,408, issued on April 21, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Valve device and assembled battery" was invented by Miho Sasaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A valve device and an assembled battery according to which even if the valve device operates, deterioration of an outer layer of a storage body is unlikely to be accelerated. The valve device is attached to a first storage body that stores a battery. The valve device includes an attachment part, a valve device main body, and a gas passage part. The attachment part is attached to the first storage body. The valve device main body reduces pressure inside t...