ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,886, issued on June 3, was assigned to OKAMOTO MACHINE TOOL WORKS LTD. (Gunma, Japan).
"Grinding apparatus" was invented by Tetsuyuki Watanabe (Gunma, Japan) and Keiji Tsuchiya (Gunma, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a grinding apparatus that can efficiently and accurately measure the position of a work surface of a workpiece without preliminary preparations. Included are: a work table (14) configured to hold a workpiece (W); a grinding wheel (10) configured to grind the workpiece (W) while rotating; and a detection sensor (20) configured to detect the position of a work surface of the workpiece (W) in contact with th...