Time Out says
This tiny roadside sandwich shop in Horikiri would be utterly uninteresting if it wasn't for the quirky vending machines through which passers-by can satisfy their hamburger cravings. Drop in a ¥100 coin and wait for a small but completely passable burger to appear in the plastic hatch – it's all human-powered, so don't freak out if your package doesn't arrive right on the spot. You can also enter the shop and buy a sandwich the traditional way, but where's the fun in that?
UPDATE: Tateishi Burger has changed its name to Mochi Pizza, and now sells, well, just that. We have heard rumours of the occasional burger still being cooked up here though, so best go check it out for yourself.