ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,954, issued on Sept. 2, was assigned to HITACHI LTD. (Tokyo).

"Graph search device, graph search system, and graph search method" was invented by Amit Kumar (Tokyo) and Hideya Yoshiuchi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A graph search device includes: an existing information database storing existing information that includes a set of existing process graphs and a set of existing process tables; a query data management unit that acquires query data that includes a query graph and a query table; a structure comparison unit that determines, as a first search candidate, an existing process graph satisfying a predetermined structural...