The 2007 International Robot Exhibition, the world's largest exhibition focusing on robotics, opened Wednesday at the Tokyo International Exhibition Center in Ariake, also known as Tokyo Big Sight, for a four-day run through Saturday. The event, the 17th of its kind and held every other year since 1973, is organized by the Japan Robot Association and Nikkan Kogyo Shimbun Ltd. It showcases robots made by 199 companies and 66 organizations in and outside Japan, including humanoid and manufacturing robots and humanoids.

On display will be robots designed for purposes other than manufacturing, including those designed to perform medical, welfare, cleaning and security jobs. On the final day, a wrestling bout by two-legged robots is scheduled to take place. On the final day, a wrestling game by two-legged robots is scheduled to take place.