ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,632, issued on Dec. 30, was assigned to Fujikura Ltd. (Tokyo).

"Cleaning tool and cleaning method" was invented by Shunsuke Fujita (Chiba, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning tool includes: a tool main body; an insertion part that moves in a predetermined direction relative to the tool main body, and is configured to hold a head unit movable backward and configured to press a cleaning body against a cleaning target; a retrieve mechanism that retrieves the cleaning body using a relative movement in the predetermined direction between the tool main body and the insertion part; and a rotation mechanism that rotates the head ...