Analysis on Chinese Nano Light-emitting Materials and Devices Field Based on Patent Intelligence

Based on the patents of Nano light-emitting materials and devices field collected by Derwent Innovation Index database,through a comparative analysis on the patent data of China,Japan and US,the quantitative analysis in this paper reveals the overall patent situation,the key RD fields and RD institutes patent distribution involving major companies as patent applicants or holders in the industry in China. The paper hopes to provide an objective statistical reference for future academic researches and innovation development for technologists and managers.