TOKYO -- At lunchtime, the Sushiro restaurant near Tokyo's Ogikubo train station is packed with families, couples and business people, but one thing is missing: staff.
Instead of receptionists, diners use a touch panel to find a table. At their seats, they navigate a tablet to order from a menu spanning some 130 items including sushi, ramen noodles, fried chicken and hot coffee. The dishes are delivered directly to the table via a conveyor belt. A self-serving register awaits them on their way out.