By Dale DenwaltStaff writerddenwalt@oklahoman.comThe owners of Nhinja Sushi & Wok have created a new concept to franchise their fast-casual chain of metro restaurants, blending tech with the art of making sushi rolls.Branded with a new name, Nhinjo Sushi and Grill, the franchise concept has a smaller footprint and smaller menu."The goal is consistency, cost and quality control," said Tony Nguyen, director of operations.Read more on NewsOK.com