US Patent Issued to Mitsubishi Materials on Sept. 23 for "Base material for hard sintered body, hard sintered body, and cutting tool" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,344, issued on Sept. 23, was assigned to Mitsubishi Materials Corp. (Tokyo).

"Base material for hard sintered body, hard sintered body, and cutting tool" was invented by Masayuki Koshiyama (Naka-gun, Japan), Toshihiko Matsuo (Naka-gun, Japan), Koji Fukata (Akashi, Japan) and Yoichi Hamada (Naka-gun, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A base material for a hard sintered body includes a pillar portion having a central axis and extending in the axial direction of the central axis. The pillar portion has a first outer peripheral portion, a second outer peripheral portion, and a protruding stripe portion. In the cross-sectional view, o...