CNET summarizes a report [Google translation] from prominent Japanese business newspaper Nikkei claiming that both the iPhone 5S and iPhone 5C will launch in Japan on Friday, September 20, ten days after the devices are expected to be unveiled at an Apple media event.SoftBank and KDDI will handle sales of the iPhone 5S and 5C, according to Japan's largest business daily. NTT Docomo is not expected to sell the new iPhones, Nikkei added.