R&D jobs now making inroads in those countries as U.S. companies pour money into the region Motorola Inc. has closed three semiconductor design centers in Taiwan, Singapore and Hong Kong and plans to move some of those jobs to larger design centers in India and China, a company spokesman confirmed Tuesday.About 50 employees in total will be affected by the decision, which was announced to employees last week, said Scott Stevens, a Motorola spokesman. Some of the jobs will be transferred, and some will be eliminated, but it’s too early to be more precise than that now, he said.The Schaumburg, Illinois, company operates large design centers in Bangalore, India, and Suzhou, China, Stevens said. Those two centers will assume the design work previously done in the other locations, he said. Manufacturing and low-level software development jobs have migrated to India and China in large numbers for several years. But a greater number of research and development jobs are starting to make inroads into those countries as well, as U.S. companies pour money into the region. Software DevelopmentTechnology IndustrySmall and Medium Business