Sansha Electric Manufacturing Co., Ltd. engages in the manufacture and sale of applied machinery, semiconductors, electric machinery, medical machinery and its related equipment. It operates through the following segments: Semiconductor Business and Power Supply Equipment Business. The Semiconductor Business segment includes power modules, power transistors, diodes, thyristors, and triacs. The Power Supply Equipment Business segment deals with direct current power supply, uninterrupted power supply, electrical regulator, power supply for metal surface treatment and illuminants, welding machines, charging apparatus, rectification device, and switching power supply. The company was founded by Yukio Shikata on March 8, 1933 and is headquartered in Osaka, Japan.