Net profit grew to 2.9 billion yen (24.5 million dollars) in the three months to June, while pre-tax profit jumped 36.8 percent to 7.2 billion yen.

In contrast, sales fell 4.0 percent to 159.2 billion yen.

Pioneer Corp. said lower selling, general and administrative costs and increased patent licensing agreements income helped boost profits.

A weaker-than-expected yen also cut its foreign exchange losses.

In Japan, plasma display television sales fell but DVD recorders and home telephone sales rose, while in North America, plasma TV sales increased but audio products sales fell, the company said.

Pioneer left its forecast for the full year unchanged despite upgrading its exchange rate expectations. It sees the euro trading on average at 130 yen compared to 125 in April, with the dollar rate unchanged at 118 yen.

It sees a full-year net profit of 20 billion yen and pre-tax profit of 37 billion yen on revenue of 760 billion yen.

SPACE.WIRE