For 50 years since the foundation in 1961, Tokyo Sokuteikizai Co.,Ltd. has been endeavoring to manufacture high quality products, to meet the various demands of clients for manual rotary switches and manual rotary encoders.We have been manufacturing products which fulfill the clients' requirements, even if it was a single switch.Our products are used in wide range of machines and devices, such as control panels of machine tools, control units of medical devices and measuring instruments, switches of telecommunication equipments and audio devices, etc as an interface between people and machines.We take pride in our trusted quality and durability, and we also contribute to make affluent and safe society through our products.