NEC Corp. aims to double its share of the global supercomputer market in the next four years by increasing sales in Europe, a market where industry leaders IBM Corp. and Hewlett-Packard Co. may be easier to challenge.

Japan's largest personal computer maker will increase to 5 percent its share of the supercomputer market by 2014, Fumihiko Hisamitsu, general manager of NEC's high-performance computing division, said at the company's Tokyo headquarters Monday.

NEC's plan to expand in Europe mirrors a strategy announced this year by rival Fujitsu Ltd., which said in May it aims to tap rising demand in Germany, France and the U.K. to increase its market share to 10 percent from 2.2 percent in the next five years. U.S.-based IBM and HP control about 80 percent of the market, according to supercomputer-ranking Web site Top500.