Bridgestone Corp. (TYO:5108) has been conducting performance verification testing of its seismic isolation rubber bearings together with Takenaka Corp. at one of the general contractor’s buildings. The isolators demonstrated long-term durability after being in place for approximately 30 consecutive years. Manufactured in 1986 from laminated natural rubber, the bearings have been in use at a Takenaka staff dormitory, located in…