Nissan Motor Co. said Tuesday that it will sell its entire stake in Nissan Digital Process Ltd., a systems engineering firm, to Fujitsu Ltd. on Sept. 26 as part of its ongoing efforts to reduce costs.

Nissan Digital Process, which develops and maintains software used in the design and engineering of vehicles, was established in 1987. It is 90 percent owned by Nissan, while both IBM Japan, Ltd. and Nihon Unisys, Ltd. hold 5 percent stakes.

Nissan will purchase the shares owned by IBM Japan and Nihon Unisys and sell the 100 percent stake in the subsidiary to Fujitsu. Nissan refused to disclose the amount it will earn from the deal.

Nissan officials said the carmaker and its group firms will continue to work with Nissan Digital Process, which is capitalized at 350 million yen and had 4.1 billion yen in sales in fiscal 1999.