ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,214,427, issued on Feb. 4, was assigned to KYOCERA Corp. (Kyoto, Japan).
"Insert and cutting tool" was invented by Mitsuru Hasegawa (Satsumasendai, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An insert includes a base which includes a first surface, a second surface connecting to the first surface, and a cutting edge located on at least a part of a ridgeline of the first surface and the second surface. The first surface includes a plurality of grooves located at a position away from the ridgeline and extended at an angle of 20-90deg relative to the ridgeline. The grooves are away from the ridgeline in a range of 40-700 micro metre. A width W of ...