Sumitomo Electric Industries Ltd is a major Japanese producer of cable, materials & equipment for the semiconductor and opto-electronic industries; supplying telecommunications, power transmission, information technology and automotive cable markets worldwide. The history of Sumitomo Electric reaches back to the 16th century when Masatomo Sumitomo started a copper refining business with his brother in-law in Japan. The Sumitomo logo, called Igeta, is a symbol of the Sumitomo family of companies and can be seen on Sumitomo businesses around the world.