Nokia’s Tirri Fills in as Technology Officer as Green Leaves

Nokia Oyj, the world’s largest mobile-phone maker by volume, said Henry Tirri will take over the duties of Chief Technology Officer Rich Green, who started a leave of absence for personal reasons.

Tirri, based in Palo Alto, California, is the head of the Nokia Research Center, which has offices in a dozen locations from Berkeley to Nairobi. Nokia won’t provide a timetable for Green’s return, Doug Dawson, a spokesman for the Espoo, Finland-based company, said by phone today.