ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,836, issued on Sept. 8, was assigned to Elecom Co. Ltd. (Osaka, Japan).

"Mobile battery device, connectable electric equipment, and mobile electric device" was invented by Akira Yasui (Osaka, Japan), Yoshinori Okada (Osaka, Japan) and Yuki Yamame (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a mobile battery device including a body case having a housing space for housing a battery. The body case includes, at certain places a battery-side terminal that serves as an output terminal of the battery; and a battery-side connection part that is connectable to an electric equipment-side connection part of an electric equipment tha...