ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,395, issued on June 24, was assigned to TUNGALOY Corp. (Fukushima, Japan).
"Shank and cutting tool having the shank" was invented by Yusuke Suzuki (Iwaki, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention can realize better cutting performance while suppressing an influence of, for instance, deflection of a head and an increase in a moment acting on a fastening mechanism even when a cutting insert of a long total length is used. A shank of a head replaceable type cutting tool includes: a fastening mechanism that is formed at a leading end part in a longitudinal direction of the shank, and attaches a head; and a recessed part...