Patent Technology Analysis of Wireless Charging for Electric Vehicles
[Purposes]Wireless charging is the core foundation of the development of the electric vehicle industry.This article analyzes the application trends and technological development veins of wireless charging patent technology for electric vehicles,in order to grasp development status of wireless charging patent technology for electric vehicles.[Methods]Through patent analysis,electric vehicle wireless charging patent application changing trends,applicant area distributions,applicant rankings,and techni-cal make-up of patent applications were intensively studied.[Findings]In the field of wireless charging technology for electric vehicles,companies from Japan and the republic of Korea dominate,while Toyota from Japan and Hyundai from the republic of Korea have absolute advantages in patent applications.[Conclusions]Although wireless charging technology for electric vehicles started late in China,it has de-veloped rapidly,with the emergence of advantageous enterprises such as State Grid and ZTE New Energy Vehicles.However,overall,patent technology lacks core competitiveness and faces strong patent barriers.
electric vehiclewireless chargingpatent analysisdevelopment status
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