Komatsu Ltd. has experienced unstable management under different leadership styles, including autocratic, diplomatic, and participatory. The company established a total quality concept under Kawai's leadership from 1964-1982 but saw stagnant sales under Tetsuya Katada from 1989-1990 as the construction equipment market declined. Tanaka focused on the domestic market and internationalization from 1987-1989 through pricing decisions. The case recommends Komatsu strengthen its domestic market position, implement more stable management, and diversify its product portfolio.