【作者】 张辉；

【导师】 吴菲菲；

【作者基本信息】 北京工业大学 ， 管理科学与工程， 2015， 硕士

【摘要】 技术跨领域应用研究,可以发现技术的发展和转移规律。对技术创新成果的拥有者而言,可以拓展其成果应用领域,获得更多的研发回报;对于问题解决方案的搜寻者而言,可以从更广阔的视角获得知识资源。文章提出了一种利用网络度分布特征识别技术应用领域转移的新思路。通过构建专利引用网络,计算网络的入度分布特征,判断技术应用领域的转移。并以德温特专利数据库为构建专利引用网络的数据源,对石墨烯技术的8608个专利族构建了专利引用网络进行实证分析。实证分析的结果表明:当技术在相同领域应用时,专利引用网络入度分布服从幂律分布,优先连接机制作用明显;当技术出现跨领域应用且领域覆盖范围广泛时,优先连接机制作用减弱,节点入度不再符合幂律分布。此外,对石墨烯技术领域引用关系整体特征的分析发现,石墨烯专利引用时存在着以技术领域内应用为主的趋势,即专利倾向于对同一技术领域内的专利技术进行引用。针对方法应用过程中,影响研究方法准确性的因素,文章从专利被引的完整性和专利技术领域归属的正确性两个角度,分析了影响专利引用网络质量和技术领域界定的因素,并以此为依据,对如何提升方法的准确性提出了针对性建议。文章提出的方法有助于技术跨领域应用的快速识别,为企业研发方向选择及问题解决方案获取提供支持,也可为政府的政策制定提供建议,进而促进技术的多领域应用。此外,专利引用网络的共性特征和各技术领域子网络个性特征的分析,有助于更好地揭示技术应用演化过程,为创新决策和专利战略布局奠定基础。更多还原

【Abstract】 Technology cross-domain research is helpful to discover the law of technology development and transfer. It is also meaningful to those who owns innovations for expanding application fields which will create more R&D outputs. For people who looks for solutions, it provides a widen perspective to access knowledge resources.This paper provide a new way to identify the transfer of technology fields which analyzes the characters of in-degree patent citation networks. The judgment of technology field transfer is achieved through calculating the degree distribution of patent citation networks. To clarify this idea further, an example of 8608 patents of graphene technology collected from Derwent World Patents Index is proposed to construct patent citation network. The results show that the in-degree distribution follows the power law when the technology is applied in the same field. And the preferential attachment mechanism works well. While the in-degree distribution disobey power law when the technology is applied across various fields. The preferential attachment doesn’t work so well as the former situation. The graphene patent citation relationship analysis show that there is a tendency to apply its technology in the same domain. It also means that a patent is incline to cite patents in similar field. As to the accuracy when apply this method, this paper analysis the patent citation relationship integrity and patent technology field affiliation validity. These factors while will influence the patent network quality and the technology field definition. Some suggestions to improve the accuracy of proposed method are also provide.The method proposed is helpful to identify a technology’s application of cross-disciplinary. It will give suggestions to enterprises for R&D selection and solution search. It will help the government to make policies. Thus it will promote the multi-domain application of technology. The common features and individuality of patent networks analysis are useful to reveal the technology application evolution which will lay good foundation for innovation decision and patent portfolio.更多还原