ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,716, issued on Dec. 23, was assigned to TUNGALOY Corp. (Fukushima, Japan).
"Cutting insert and turning tool" was invented by Hiroki Shimanuki (Iwaki, Japan), Takashi Yamaguchi (Iwaki, Japan) and Satoshi Suzuki (Iwaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a cutting insert easy to be gripped by an operator or a robot hand. First and second end surfaces (10, 20) are formed in substantially polygonal shapes having second and fourth corners (B, H) formed at obtuse angles and first and third corners (A, G) formed at acute angles. A peripheral side surface (30) includes a first curved portion (41) connecting the first and third ...