US Patent Issued to Dai Nippon Printing on Sept. 2 for "Battery packaging material having a valve device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,407,058, issued on Sept. 2, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Battery packaging material having a valve device" was invented by Youichi Mochizuki (Tokyo), Atsuko Takahagi (Tokyo), Rikiya Yamashita (Tokyo) and Miho Sasaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A battery includes a battery element, housing body, and valve device. The housing body has a laminate including a base material, barrier, and heat-sealable resin layers. The valve device is in communication with the housing body inside. A joined edge portion in which the mutually facing heat-sealable resin layers are fused together is formed in a housing body per...