In Japan, NEC Tokin Corp. of Miyagi will transfer its optical device business to Seikoh Giken Co. Ltd. of Chiba. The former intends to focus on PC-related equipment, mobile phones, digital consumer electronics and automotive products, and to invest in Proadlizers and laminated manganese-type batteries using its proprietary material technology. Seikoh produces optical disk mold and optical communications devices for information technology markets. It intends to introduce products for global environmental protection.