The Japanese economy's rate of growth increased by more than 10% for five consecutive years from 1966 to 1970, which enabled Japan to solidify its position as a major economic power. During this period, SANYO attained unprecedented sales and Toshio once again sought ways to reorganize and streamline the company. In 1968, at 65 years of age, Toshio transferred the presidency of SANYO to his brother and took on the role of chairman. Both Toshio's brothers, Yuro and Kaoru, had worked with Toshio over the company's many years in business. Toshio, as head of the company, defined comprehensive corporate strategies. Yuro managed the human and financial affairs required for effective business operations, and Kaoru took charge of business administration. All three men were ideally suited for their positions and responsibilities. This intelligent allocation of power, combined with the Iue family's strong sense of solidarity, were the reasons behind SANYO's rapid growth and success.