摘要：本文以日本技术水平在上世纪六十至八十年代的快速发展为背景，借助专利信息研究日本的创新特色。本文的着眼点为创新中的合作行为，采用OECD的三极专利族（Triadic Patent Families）数据库、参照特定时期和特定年份的全部专利、并选取两个相似的美国公司，重点对5个日本国际性经营公司创新中的合作行为分企业和项目两个层面进行考察。本文的分析结果显示：日本企业在技术追赶过程中有高于世界水平的联合倾向，这种倾向表现为很强的外生性；日本的项目合作水平也要高于世界水平，这体现了日本的合作性团队文化对于创新中信息共享的重要性。该研究对中国的启示是：应该重视产业政策在促进技术提升中的作用和培养有利于合作的企业文化。  

  Abstract: By taking Japan’s fast developing period from 60’s to 80’s of last century as the background, the cooperation in innovation activities is focused by analyzing the patenting information of the database of triadic patent families built by OECD. Five Japanese firms and two American benchmark firms are taken as the sample firms. Patents of all over the world of two five-year periods and two single years are also investigated. The results show that Japanese firms have higher cooperation level during their catching-up period, which exhibits an exogenous characteristic. The project-level cooperation trend for patenting in Japanese firms is also higher than that at the world level, which shows that the team work cooperation culture of Japanese firms offers more information sharing in the innovation. The inspiration that China and Chinese firms could draw from is that industrial policies leading to technological cooperation in technical advance should be attached much importance and corporate culture that is beneficial to cooperation should be cultivated.