ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,432, issued on June 24, was assigned to STAR MICRONICS Co. LTD. (Shizuoka, Japan).

"Lathe and method of detecting cut-off tool breakage" was invented by Koichiro Shigama (Shizuoka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lathe includes a spindle, an opposite spindle, a tool post, a controller, and a contact-type breakage detector. The controller determines whether the cut-off tool is broken according to a control parameter for controlling at least one of the spindle and the opposite spindle at a first detection timing immediately after the cut-off tool cuts off the bar material while the opposite spindle holds the bar material held by...