| The 21st century is the century of biology,behind the leap-forward development of biomedicine is a breakthrough in biotechnology,and technological innovation have become the only way for biomedical companies to maintain their core competencies.Biomedical medicine involves a wide range of complex disciplines;at the same time the required information and knowledge are with high cutting-edge technology content.Therefore,for biomedicine,cooperation can be more effective in achieving innovative results,so cooperative innovation has become the main form of its innovative activities.The main achievements of the patent as a cooperative innovation are influenced by the characteristics of the cooperative network,which affects the innovation performance level of the enterprise.Therefore,it is very important to study the patent cooperation network of the biomedical medicine enterprise.In this study,we selected the biomedical enterprises listed in Shanghai and Shenzhen A shares as samples,and adopted the patent data published by the website of the State Intellectual Property Office of the People's Republic of China.Taking the inventor of the biomedical patent as the node and the cooperation between the inventors as the line,this paper discusses the influence of the network characteristics of the cooperative network of the inventors in the biomedical enterprise on the innovation performance by using the cooperative network of patented inventors of biomedical medicine as the research object.Through the measurement of statistical methods this article statistics of the basic situation of patents and cooperation of inventors of the sample biomedical enterprise,the results showed that the biological medicine enterprises lack of innovation in our country,and from 2007 to 2014 most of the company's patent number less than 200.The average annual number of companies is less than three,whose patents number are more than 200;The number of patents is vary by China's different biomedical companies,which reflects the unbalance of the biological medicine enterprise development in our country;While the proportion of cooperation patent in biological medicine is increasing,indicating that the important role of cooperative innovation in the biomedical industry;However,the number of collaborators in the patent increases year by year,but the number of patents and the number of cooperation does not have a simple and accurate correspondence,which illustrates that the importance and necessity of cooperation network research.In this study,we construct the cooperative innovation network of biological medicine enterprise between patent inventors.And the network characteristics of the cooperative network were calculated by computer programming.Finally,STATA13.0 was used to carry out descriptive statistics,simple correlation coefficient analysis and Negative binomial regression,and then we come to the corresponding conclusions.The results show that there is a positive correlation between the node attributes(network size,the total number of cooperative relationships)of the inventor's cooperative network and the innovation performance.However,the relationships between structural attributes of inventors' cooperative networks and innovation performance is complex.The relationship between the strength of cooperation,the richness of structure hole and innovation performance are positively correlated,while the relationships between the betweenness centralization,clustering coefficient and innovation performance are inverted u-shaped relationship.The results of this paper show that the social network characteristics of different dimensions have different effects on the innovation performance of enterprises.According to the characteristics of the internal innovation network and the existing resources,the enterprise can adjust the internal cooperation network and optimize the performance of the innovation,which will have certain theoretical and practical value for the improvement of the innovation performance of biomedicine. |
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