US Patent Issued to FDK on March 4 for "Sealing gasket and tubular battery incorporating sealing gasket" (Japanese Inventors)

ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,027, issued on March 4, was assigned to FDK Corp. (Tokyo).

"Sealing gasket and tubular battery incorporating sealing gasket" was invented by Tatsuya Yamazaki (Tokyo) and Shigeyuki Kuniya (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing gasket used in a tubular battery includes a disc-shaped partition portion; an outer peripheral portion provided to stand from a peripheral edge of the partition portion and held between an open end of a metal battery can and a dish-shaped metal sealing plate; and a plurality of stress buffer portions formed of annular grooves formed concentrically in the partition portion, wherein the tubular battery in...