This paper examines how Japanese companies focus on product architecture when implementing strategies to succeed in China’s rapid economic development and the rapid growth of Chinese companies. On the basis of case studies of two groups within the finished goods and components industries for home electronics (air conditioners/compressors and color televisions/cathode ray tubes), three strategies are proposed: 1) an integral core component supply strategy for modularized product markets, 2) a focus strategy for integral product market segments, and (3) a traction strategy for integral types in the overall market.