JOINT BURGER Ginza sells hamburgers in the basement of a building in Ginza, Tokyo. It serves the Joint Burger and the Double Cheddar Cheese Burger, built around a coarsely ground meat patty and a bun that is crisp outside and soft inside. The patty has a strong meat flavor, and the bun has a crisp exterior and a soft interior. A drawback is that prices are high relative to the taste.