CYBERDYNE was launched in June 2004 to commercialize the cybernetic work of a group of researchers headed by Yoshiyuki Sankai a professor of system and information engineering at Japan's University of Tsukuba. Its newest product: the Robot Suit Hybrid Assistive Limb (HAL) exoskeleton, which the company created to help train doctors and physical therapists, assist disabled people, allow laborers to carry heavier loads, and aid in emergency rescues. A prototype of the exoskeleton suit is designed for the small in stature, standing five feet, three inches (1.6 meters) tall. The suit weighs 50.7 pounds (23 kilograms) and is powered by a 100-volt AC battery (that lasts up to five hours, depending upon how much energy the suit exerts).