ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,776,549, issued on Oct. 27, was assigned to FDK Corp. (Tokyo).
"Sealing body for cylindrical storage battery and cylindrical storage battery using same" was invented by Yusuke Fukuda (Tokyo) and Hiroyuki Shibaoka (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing body and a cylindrical storage battery are provided. The sealing body includes: a first cover plate fixed to the battery; a second cover plate forming a housing space between itself and first cover plate; and an elastic valving element disposed inside housing space and compressed between the first and second cover plate. The first cover plate includes an annular, hollow disk-shaped...