ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,162, issued on Dec. 2, was assigned to DAIWA CAN COMPANY (Chiyoda-ku, Japan).
"Battery case and manufacturing method thereof" was invented by Rio Miyashita (Sagamihara, Japan), Masahiro Shiotani (Sagamihara, Japan) and Yasushi Enoki (Sagamihara, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A battery case includes a mounting surface formed into a desired shape to place a sealing plate stably thereon. The battery case includes: an open box-shaped case body holding components of a battery; and a sealing plate that is integrated with the case body to close an opening of the case body. A stepped portion on which the sealing plate is placed is form...