US Patent Issued to SUMITOMO ELECTRIC HARDMETAL on Sept. 8 for "Drill" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,465, issued on Sept. 8, was assigned to SUMITOMO ELECTRIC HARDMETAL CORP. (Itami, Japan).

"Drill" was invented by Koji Takahashi (Itami, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A first flank face includes a first front flank face portion and a first rear flank face portion. A second flank face includes a second front flank face portion and a second rear flank face portion. A ridgeline between the first front flank face portion and the first rear flank face portion is defined as a first ridgeline. A ridgeline between the second front flank face portion and the second rear flank face portion is defined as a second ridgeline. When viewed i...