ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,629, issued on March 3, was assigned to PANASONIC ENERGY Co. LTD. (Osaka, Japan).
"Sealed battery" was invented by Masayoshi Yoshida (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealed battery as an example of an embodiment is provided with an electrode body to which an electrode tab is connected, a closed-end cylindrical exterior housing can which houses the electrode body, and a sealing body that seals an opening of the exterior housing can. The sealing body includes a rupture disk. The rupture disk has a curved first thin-walled portion and a first valve portion surrounded by a straight-line portion connecting both ends of the f...