Sanyo Denki Co., Ltd. engages in the production and sales of cooling fan, power supply equipment and servo systems. It operates through the following divisions: Cooling Systems, Power Systems, Servo Systems, Electrical Equipment Sales, and Electric Construction. The Cooling Systems division develops, manufactures, and sells cooling fans and systems. The Power Systems division develops, manufactures, and markets power systems, engine generators, and solar energy power conditioners. The Servo Systems division includes servo motors, stepping motors, encoders, and control systems. The Electrical Equipment Sales division sells industrial electrical equipment, control equipment, and electrical materials. The Electric Construction division deals with electrical work f or aging electrical equipment. It also provides construction services for photovoltaic power generation facilities. The company was founded by Hideo Yamamoto in August 1927 and is headquartered in Tokyo, Japan.