Technology Roadmap using Patent Keyword

Technological trend analyses using patents are increasingly developed for effective R&D strategies recently. Especially, a patent mat analysis including core patents is widely used. However, extraction of core patents from the mat requires experts and consumes enormous time and cost. We propose a quantitative methodology of patent analysis using text mining techniques to solve this problem. This study analyzed the trend of technology of thermal insulation materials by building a patent map based on patent keywords.