US Patent Issued to Subaru on Oct. 6 for "Tool driving device and method of producing machined product" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,348, issued on Oct. 6, was assigned to Subaru Corp. (Tokyo).

"Tool driving device and method of producing machined product" was invented by Ryohei Ono (Tokyo), Masao Watanabe (Tokyo), Tatsuo Nakahata (Tokyo) and Shinya Matsuo (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tool driving device for cutting includes a spindle and an electric motor. A user carries the tool driving device by hand to use the tool driving device. The spindle has a holder for holding a tool for the cutting. The holder is disposed at a distal portion of the spindle. The electric motor rotates the spindle. A thrust bearing is attached to a housing of the electric motor...