The oil shock of the early ‘70's brought about economic stagnation in Japan. Despite these challenges, during this period Bridgestone was placing even more emphasis on establishing its own technology for the manufacture of radial tires and was building new tire plants in Japan.
Its Super Filler Radial was placed on the market in 1978, and in 1979 the company released the high-performance POTENZA radial tire.
The company actively continued to expand overseas. In addition to beginning production in Indonesia and Iran in 1976, the company invested in a Taiwanese tire manufacturer and purchased a tire plant. In 1980, Bridgestone purchased a plant for manufacturing tires and diversified products in Australia.
During this period of exciting growth and expansion, the Bridgestone family of companies also had to cope with the sad news of the passing of its beloved founder Shojiro Ishibashi who died on September 11, 1976.