ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,666, issued on March 11, was assigned to EAGLE INDUSTRY Co. LTD. (Japan).
"Sliding component" was invented by Yuki Maetani (Tokyo), Yuta Negishi (Tokyo) and So Makishima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sliding component capable of maintaining high lubricity for a long period of time by efficiently using a liquid supplied between sliding surfaces is provided. An annular recess portion opening radially over the entire circumference is formed on an inner radial side or an outer radial side of at least one of a pair of sliding surfaces of the sliding component and a supply groove communicating with the annular recess portion and...