SINFONIA TECHNOLOGY CO., LTD. is a company mainly engaged in the manufacture and sale of motion equipment. The Motion Equipment segment is engaged in the manufacture and sale of digital photo printers, electrical components for space rockets and aircraft use, electromagnetic clutch brakes, active vibration control devices, servo actuators and others. The Power Electronics Equipment is engaged in the manufacture and sale of vacuum melting furnaces, electricity generators, handling equipment for semiconductor manufacturing devices, electrical systems for iron and steel plant use, among others.

The Support and Engineering segment is engaged in the construction and engineering of electrical equipment, the sale and engineering of carrier systems for hospitals, the operation of warehousing and transportation businesses, the development of software and the provision of labor dispatch service. As of March 31, 2012, it had 12 subsidiaries and three associated companies.