Las Vegas Review-Journal – When Bill Lerner and Rich Moriarty penciled out their ideas for Union Gaming Group over dinner at the Sparks Steak House in New York City in 2008, the original concept was to create a boutique investment bank and securities firm focused on the global casino industry. Five years later, the Las Vegas-based business has far exceeded their initial plan. Later this month, Union Gaming Group will host a three-day conference at the Conrad Hotel in Tokyo that focuses on Japan’s potential expansion into legalized casino gaming. Japan is considered uncharted territory for gaming, with many in…