I noticed that I can find any product (especially food) in Japan. For example Coffee Shop, not only Starbucks, but also Tully's.
Tully's is an American brand which operated and franchised specialty retail stores in Washington, Oregon, California, Idaho and Arizona and its global alliance partner in Japan (by Tully's Coffee Japan. Tully’s premium coffees are available at more than 400 branded locations.
On the other hand, I also found Dean & Deluca Espresso Bar here in Tokyo. Dean & Deluca Retail Shop was set up by Joel Dean and Giorgio DeLuca majority in USA. Since Dean & Deluca retail store has fresh-roasted coffees from around the world, they are able to service customer with Dean & Deluca Espresso Bar. Don't mention about Dean & Deluca Retail Shop in Ropponghi Hill (a very big one)