基于专利分析的日本新能源汽车技术发展趋势研究

A Study of Japanese New-energy Vehicle Technology Development Trend Based on the Patent Analysis

从新能源汽车技术专利申请入手,利用跨国专利比较方法对日本新能源技术的国际水平进行比较分析。在此基础上,对日本汽车企业新能源技术专利申请的阶段性特点、技术发展方向以及企业技术组合进行进一步探讨,重点分析其技术路线的变化方向以及国家产业政策的影响。研究表明,日本新能源汽车技术处于世界领先水平,在国家产业政策以及其他市场培育措施的促进下,新能源汽车产业按国家产业规划目标有序发展。

Starting with the new-energy vehicle patents application, this study uses the transnational patents analysis method to assess the Japanese new-energy vehicle technology level. Then, the characteristics of the Japanese automotive company＇s new-energy vehicle technology patents application, technology development direction and enterprise technology portfolio are further analyzed, with much emphasis being given to the trend of the technology route and the impacts of industrial policies designed by government. This study suggests that： Japan keeps ahead of other countries in the development of new-energy vehicle technology; the technology route of Japanese new-energy vehicle industry is clear; the industry is developing on the path decided in government＇s plan in a orderly way under the national industrial policies and other market cultivation policies.