Sumitomo Riko Lauded for Application of Anti-Vibration Rubber to Table Tennis Rackets on February 21, 2018 in Innovation Sumitomo Riko Co. Ltd. (TYO:5191) has been in the limelight after its co-development of Q3, a rubber for use in…... Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here Continue Reading