Cosel Co., Ltd. manufactures and sells electrical components and EMI filters in Japan and internationally. It offers AC-DC switching power supplies; DC-DC converters; and semiconductor devices, such as IC, FET, transistors, diodes, etc. for use in industrial and consumer equipment. The company was formerly known as Elco Co., Ltd. and changed its name to Cosel Co., Ltd. in April 1992. Cosel Co., Ltd. was incorporated in 1969 and is headquartered in Toyama, Japan.