Sumitomo Riko Launches Bedsore Prevention Mattress on April 10, 2017 in Innovation, Products Sumitomo Riko Co. Ltd. (TYO:5191) has launched its SR Active Mattress, a rubber mattress aimed at preventing bedsores. The product…... Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here Continue Reading