Sumitomo Denki

Sumitomo Electric Industries, Ltd. manufactures and sells electric wires and cables worldwide. Its Environment & Energy segment offers electric conductors; power transmission wires/cables/equipment; magnet wires; air cushions for railroad vehicles; power system equipment, such as substation equipment/control systems, and charged beam equipment and processing; electrical/power supply work and engineering; porous metals; and metal materials for electronic parts. The company's Infocommunications segment sells optical fiber cables; telecommunication cables and equipment; fusion splicers; optical/wireless devices, such as optical transceiver modules/wireless communication devices; compound semiconductor; and access network equipment. Its Automotive segment offers wiring harnesses, anti-vibration rubbers, automotive hoses, and car electronic components, as well as network/system devices, such as traffic control devices. The company's Electronics segment provides electronic wires, electron beam irradiation products, flexible printed circuits, fluorine resin products, fasteners, metal parts, and chemical products. Its Industrial Materials & Others segment offers tensioning materials for prestressed concrete, precision spring steel wires, steel tire cord, cemented carbide tools, diamond and CBN tools, laser optics, sintered powder metal parts, and semiconductors heat-spreader materials. The company was formerly known as Sumitomo Electric Wire & Cable Works and changed its name to Sumitomo Electric Industries, Ltd. in 1939. The company was founded in 1897 and is headquartered in Osaka, Japan.