Yokogawa Electric Corporation is a manufacturer of measurement and control equipment. The Company operates in three segments. The Control segment manufactures and sells production control systems, flow monitors, pressure and differential pressure transmitters, process analyzers, and industrial recorders. The Measurement Equipment segment manufactures and sells waveform measuring instruments, optical communication instruments, signal generators, instruments for measuring pressure, temperature and power. The Aircraft and Others segment provides instruments for aircraft, voyage-related equipments, meteorological and hydrological instruments.