Zhishi guanli luntan (Jun 2018)

Analysis of Directed Technological Cross Impact Based on the Patent Co-classification

  • Li Ruixi,
  • Chen Xiangdong,
  • Cui Yunxia,
  • Cui Caixia

DOI
https://doi.org/10.13266/j.issn.2095-5472.2018.016
Journal volume & issue
Vol. 3, no. 3
pp. 160 – 171

Abstract

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Abstract:[Purpose/significance] It is different from the existing research literatures which focus on the technical relationships in specific technical fields, this paper aims at analyzing and predicting the directional cross impacts among various technologies and providing strategic support for the development of target technology and forecasting technological progress. [Method/process] Using the patent co-classification data of 35 technical fields in China, this paper calculated the directed cross impact values between 35 technical areas based on the patent cross impact analysis methods of Choi and others. Then, according to the impact value, the technical pairs were grouped, and cross impact network was built and changes of cross impact was analyzed. [Result/conclusion] There exists a high proportion of bias and one-way technology impact in the whole technology fields. Food chemistry (FOC) is the most influential technical field. Measurement (MEA) in the instrument field, electrical machinery, equipment, energy (EAE) and computer technology (COM) in the electrical engineering field, as well as basic materials chemistry (BMC) and material, metallurgy (MAM) in chemistry field are the core technology fields, locating at the core of the network.

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