SoftBank Group Corp.'s robotics arm unveiled a cleaning robot equipped with artificial intelligence, planning to start a rental service for offices and restaurants possibly next March.The robotic vacuum cleaner named Whiz, weighing around 32 kilograms and 65 centimeters tall, can memorize a cleaning route and can automatically clean five times the area than that of home-use disk-shaped vacuum robots, according to SoftBank Robotics Corp.The robot can run continuously for three hours per charge and clean about 1,500 square meters. It will be available for rent for 25,000 yen ($220) a month an…READ FULL ARTICLE