Sumitomo Riko Co. Ltd. (TYO:5191) is looking to expand its sales of TRC Damper, a seismic control system for wooden houses. The company markets this as providing safety, security and comfort by protecting houses from the vibrations caused by earthquakes. TRC Damper incorporates Sumitomo Riko’s special viscoelastic rubber, which serves to absorb the energy of earthquakes and turn it into…