NEW YORK -- Mentor Graphics and billionaire Carl Icahn are back it, squabbling over whether the notorious investor's handpicked representatives should have been nominated for the software company's board.

AUSTIN, TX -- National Instruments achieved record first-quarter revenue of $262 million, up 10% from last year.

SAN JOSE -- Cadence Design Systems reported first-quarter net income of $31 million, up 417% year-over-year.

AUSTIN, TX -- National Instruments will renew its Green Engineering Grant program this year, the company announced this week.