ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,544, issued on Feb. 3, was assigned to SUMITOMO ELECTRIC HARDMETAL CORP. (Itami, Japan).

"Boring tool and cutting insert" was invented by Christoph Zeiner (Willich, Germany), Yusuke Matsuda (Willich, Germany), Junya Okida (Itami, Japan) and Yuki Tsutsumi (Itami, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A boring tool has a cutting insert, a holder, and a pressing member. The cutting insert includes a base member and a cutting member. The base member includes a first side surface, a second side surface, a third side surface, and a fourth side surface. The holder includes a front end surface, a rear end surface, and an outer peripheral surfa...