Abstract: To improve the innovation of remanufacturing technology for enhancing the social recognition,the influence of original manufacturer's patent protection on technology innovation strategy of re-manufacturer was researched by using game theory.Based on the derivation of consumers demand function which included the level of technological innovation,the supply chain models which regarded to No-Technical-Innovation(NTI),no-patent-Technology-Innovation(TI) and Patent-Protect-Technology-Innovation(PTI) respectively were constructed and solved,and the performance of supply chain and the model preferences of members were analyzed in detail with theoretical analysis and numerical simulation methods.Our analysis showed that the level of technology innovation was always positively related to the cost savings of re-manufacturing and consumer's valuation of the re-manufactured products,the level of technology innovation under patent protection was lower than that without patent protection;when dealers carried out technology innovation,the original manufacturer's patent licensing fees were significantly higher and was negatively related to the R&D efficiency;the mode preference of re-manufacturer,green consumer and social welfare was ,the preference of the original manufacturer was ,and  the preferences of the supply chain system as well as the general consumers depended on the valuation degree of re-products from consumers.

Key words: patent protection, re-manufacturing supply chain, technology innovation, Stackelberg game

摘要： 为提升再制造技术创新水平以增强其社会认可度,运用博弈论研究了原制造商专利保护对再制造商技术创新策略的影响。在推导包含产品技术创新水平的消费者需求函数的基础上分别构建并求解了无技术创新(NTI)、无专利保护技术创新(TI)、专利保护技术创新(PTI)下的供应链模型,通过理论分析和数值仿真对供应链绩效及成员模式偏好进行了详细分析。研究表明,技术创新水平分别与再制造节约成本和消费者对再制品的估值程度正相关,专利保护下的技术创新水平低于无专利保护;经销商开展技术创新时原制造商收取的单位专利许可费显著提高,并与技术创新效率负相关;再制造商、绿色消费者以及社会福利的模式偏好为TI-NTI-PTI,原制造商的模式偏好为PTI-NTI-TI,而供应链系统以及普通消费者的模式偏好则取决于消费者对再制品的估值。

关键词: 专利保护, 再制造供应链, 技术创新, Stackelberg博弈