IBIDEN CO., LTD. is primarily engaged in the manufacture of electronic and ceramic products. It operates in two business segments. The Electronics segment is engaged in the manufacture and sale of printed circuit boards (PCBs) and package substrates, as well as the design of PCB patterns. The Ceramics segment offers environment related ceramic products, special carbon products, fine ceramic products and ceramic fibers. The others business engages in provision of housing equipment and melamine decorative laminated sheets, design and construction of slopes, garden landscape and various facilities, synthetic plastic processing, agricultural seafood processing, information service business, automobile transportation, oil marketing, business support, investment, financing, and land ownership and management business.