US Patent Issued to Dai Nippon Printing on Sept. 8 for "Valve structure for power storage device and power storage device" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,854, issued on Sept. 8, was assigned to Dai Nippon Printing Co. Ltd. (Tokyo).

"Valve structure for power storage device and power storage device" was invented by Miho Sasaki (Tokyo) and Tomohiro Sasaki (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A valve structure for a power storage device includes a passage that communicates the interior of a container housing a power storage device element with the exterior of the container, and a check valve disposed to block the passage and configured to open when the internal pressure of the container increases due to gas produced inside the container and pass the gas from the internal side of the con...