Three-day Robot Development & Application Expo held in Tokyo

Photo taken on Jan. 17, 2019 shows a wearable chair developed by Japanese conglomerate Nitto Denko Corp at an expo in Tokyo, capital of Japan. About 220 enterprises took part in the three-day Robot Development & Application Expo (RoboDEX) in Tokyo to showcase robot technology, artificial intelligence and robot R&D. (Xinhua/Hua Yi)