Yahoo news reports that Japanese companies are preparing for the commercial launch of a "robot suit" that helps aged or physically disabled people walk, get up the stairs or seat themselves to relax without a chair.

Trading house Mitsui and Co. and some 30 other Tokyo firms plan to set up a joint-venture in April or May next year to market the powered suit developed by Yoshiyuki Sankai, professor and engineer at Tsukuba University, officials said Thursday.