Struggling computer giant Fujitsu Ltd. on Wednesday unified four of its semiconductor subsidiaries in locations stretching from northern Miyagi Prefecture to southern Kagoshima Prefecture to boost the efficiency and cost competitiveness of its semiconductor operations.

Fujitsu said it will arrange for the new integrated company, Fujitsu Integrated Microtechnology Ltd., to concentrate on the assembly of sophisticated logic large-scale integrated circuits.

Logic LSI chips, like microprocessors, are used in such electronics devices as notebook computers, mobile phones, car navigation systems and digital audiovisual equipment.