Nagaoka, Sadao; Motohashi, Kazuyuki; Goto, Akira - 2010
recent research using patent data, focusing on major developments since Griliches in 1990 [Griliches, Z. (1990). “Patent … availability of patent data on an increasingly global scale and the accompanying global spread of research using patent data. The …This chapter summarizes the basic characteristics of patent data as an innovation indicator and reviews some of the …