Fujitsu Ltd., the nation's largest computer manufacturer, revealed Friday it posted group net losses of 56.43 billion yen in the April-June quarter.

It attributed the figures to sluggish sales, particularly those of communication equipment.

Among other major electronics firms, Sony Corp. reported brisk group earnings, while NEC Corp. reported group operating losses.

Fujitsu's poor showing underlines the difficulties facing domestic producers of communication equipment.

It has now revised downward its full-year group sales projection from 5.2 trillion yen to 5 trillion yen, although it has left its profit estimates intact.

In April, it predicted it would generate full-year group operating profits of 100 billion yen and pretax profits of 5 billion yen.

Fujitsu has cut its plant and equipment spending plans for the full year by 10 billion yen to 230 billion yen.

In the first quarter, the Fujitsu group posted consolidated sales of 982.99 billion yen, down 9.8 percent from a year earlier.

Sales were largely affected by cuts in capital expenditure by domestic telecommunications companies.

The group's operating account showed losses of 29.07 billion yen, while its pretax account showed losses of 51.21 billion yen. These figures are lower than those recorded a year earlier.

Fujitsu partly attributed its net losses, which grew 985 million yen from the previous year, to extraordinary restructuring costs.

Its per-share net losses came to 28.19 yen, against per-share losses of 28.04 yen logged a year earlier.