ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,908, issued on Jan. 13, was assigned to Ushio Denki K.K. (Tokyo).

"Circulation mechanism and operation apparatus" was invented by Akihisa Nagano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circulation mechanism includes a storage section, a supply pipe, a collection pipe, a circulation drive section, and a protective member. The storage section accommodates liquid metal. The supply pipe supplies the liquid metal accommodated in the storage section to a target mechanism. The collection pipe is communicated with the storage section and collects the liquid metal that has been drained away from the target mechanism into the storage section. ...