Diversification or Concentration of Technological Innovation of China's New Energy Vehicle"Hidden Champions":A Comparative Analysis of Chinese and Japanese Patents of New Energy Vehicle Batteries
Based on the comparative analysis of invention patent data of Chinese individual champions and Japanese niche enterprises in the field of batteries in the new energy vehicle industry,this paper explores the characteristics of the relation-ship between innovative technologies and innovation networks of"hidden champions"in latecomer countries.It is found that in terms of innovative technology characteristics,the knowledge width of both Chinese and Japanese technologies is increas-ing;however,unlike the technological diversification trend of Japanese niche enterprises,the knowledge width of China's in-dividual champion technology is still in the stage of aggregation,and the knowledge depth of technology is deeper compared with that of Japanese niche enterprises.In terms of the characteristics of the innovation network,China and Japan are both dominated by independent technology R&D,but compared to Japanese niche firms,China's champions have fewer patents,and the intermediary role as a technological innovation network is weaker and more passive.
hidden championstechnological innovationdepth and breadth of knowledgeinnovation network relationshipnew energy vehicle industrycomparison between China and Japan