关键词: 生物制药行业, 电子信息行业, 技术知识基础, 专利数据, Biotechnology Industry, Electrical & Electronic Industry, Knowledge Base, Patent

Abstract: The knowledge base of the industry is the starting point of the innovation. The heterogeneity within knowledge base is a main driver of difference of innovational activities. In this paper we use the ‘State Intellectual Property Office of P.R.C’ database as data source, to explore the structure of industrial knowledge base. Based on the patent data of Chinese biotechnology and electrical & electronic industry during 1985 to 2010, we describe the knowledge base dynamics of the high-tech industry. The results show that the structure of knowledge bases of biotechnology and electrical & electronic industry is different. And when the overall knowledge base variety is rise and dominated by the unrelated variety, depth, coherence, network density and centralization is fall but cognitive distance will be rise. While as the maturation of the new technology, the variety of knowledge base is dominated by related variety, depth, coherence, network density and centralization to rise, however, cognitive distance of industry knowledge base will fall.