Sanken Electric Co Ltd. The Group's principal activity is to manufacture and sell electric and electronic equipment and apparatus. The Group also offers related works and services. The operations of the Group are carried out through the following divisions: Semiconductors; Switching power supplies and Power supply equipment. The Semiconductor division manufactures ICs, transistors, thyristors and diodes. The Switching power supplies division supplies switching power supplies, AC adaptors and transformers. The Power supply equipment division manufactures uninterruptible power supply units and inverters. Semiconductors accounted for 70% of fiscal 2002 revenues; Switching power supplies, 16% and Power supply equipment, 14%.