In a packed 1,000-seat hall at iREX 2013 in Tokyo, six prominent robot executives from ABB, Fanuc, Yaskawa, KUKA, Kawasaki and Nachi faced off against two really big users. Dr. Chia Day, VP at Foxconn Technology, described in careful detail where robots are needed in their factories, what tasks they need to do, what hurdles there are, and, to some extent, what they are doing in-house. Their most immediate need…