Tokyo Seimitsu Co., Ltd., operating internationally under the brand name ACCRETECH, was established in March 1949 and is headquartered in Hachioji, Tokyo, Japan. The company operates through two primary divisions: Metrology Instruments and Semiconductor Production Equipment.
Tokyo Seimitsu is publicly traded on the Tokyo Stock Exchange Prime Market (Securities Code: 7729). With technical centers and regional subsidiaries across Europe, the Americas, and Asia, ACCRETECH produces high-precision coordinate measuring machines, roundness instruments, surface roughness analyzers, and semiconductor inspection probe stations.