ALEXANDRIA, Va., March 12 -- United States Patent no. 12,249,725, issued on March 11, was assigned to MAXELL LTD. (Kyoto, Japan).
"All-solid-state battery" was invented by Katsuhiro Fujikawa (Otokuni-gun, Japan), Takuma Morishita (Otokuni-gun, Japan) and Takumi Otsuka (Otokuni-gun, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The all-solid-state battery 1 includes: an exterior can 2 with a bottom 21; a seal can 3 having a flat portion 31 and facing the exterior can 2; and a power generation element 4 contained between the exterior can 2 and seal can 3, where at least one of the inner surface of the bottom 21 of the exterior can 2 and the inner surface of the flat portion 31 of the seal can 3 includes...