ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,745, issued on July 8, was assigned to SUMITOMO ELECTRIC HARDMETAL CORP. (Itami - shi, Japan).
"Cutting tool" was invented by Shuhei Misumi (Itami, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutting tool according to one aspect of the present disclosure includes a shaft portion and cutting edge portions. The main cutting edge portions have a main cutting edge. In a section within plus-minus30% of a blade length of a region from a center of the region in a direction along the central axis, the main cutting edge portions have first and second nick portions. The main cutting edge portions are formed in the region. The relationship between th...