Tokyo Seimitsu Co Ltd is engaged in the manufacture and sale of semiconductor manufacturing equipment and measuring instruments. The group has two reportable segments: Semiconductor Manufacturing Equipment and Measuring Instruments. The Semiconductor Manufacturing Equipment segment produces wafer probing machines, wafer dicing machines, polish grinders, wafer manufacturing machines, CMP equipment, and precision cutting blades. The Measuring Instruments segment manufactures 3D coordinate measuring machines, roundness and cylindrical shape measuring machines, surface roughness and contour shape measuring machines, and various automatic measuring, sorting, and assembly machines. It generates the majority of its revenue from the Semiconductor Manufacturing Equipment segment.