Philips Respironics, a ventilator-manufacturing company with big Pittsburgh operations, is ramping up its production as the need for its products, in the U.S. and abroad, reaches crisis level. The company, a subsidiary of Netherlands-based Philips (NYSE: PHG), has 1,862 employees in the Pittsburgh region, according to the most recent count available to the Pittsburgh Business Times. Philips Respironics is in the midst of moving its regional headquarters from Monroeville to Bakery Square. It also...