NEC Corp, which already announced plans to manufacture notebook computers in Lexington, Massachusetts earlier this month, now says that it will shift production of laptop computers to its US factory: it will start assembling laptops with colour screens at its factory in Seattle early next month at a rate of 5,000 a month; it says it sold 50,000 laptops in the US last year, and it expects sales to double this year, and it aims eventually to stop exports of laptops and produce them all locally in the US; no layoffs in Japan or new US hiring is planned immediately as a result of the shift, the company noted.