Tokyo Seimitsu Co., Ltd. engages in the manufacture and sale of semiconductor production equipment and measuring instruments. It operates through the Semiconductor Manufacturing Equipment and Measuring Instrument segments. The Semiconductor Manufacturing Equipment segment manufactures and sells semiconductor production equipment such as probing, dicing, precision blade, polish grinding, chemical mechanical planarization, wafer slicing, and wafer edge grinding machines. The Measuring Instrument segment manufactures and sells precision measuring instruments such as coordinate, surface texture, contour, roundness, cylindrical profile, optical, control gauges, and sensors. The company was founded on March 28, 1949 and is headquartered in Tokyo, Japan.