2019 年 2019 巻 BI-013 号 p. 04-
Recently, science and technology have become more sophisticated and complex, and it is s veryimportant issue to find and promote how to accumulate and combine knowledge to develop science andrealize innovation. In this research, we construct collaborative researcher network through collaborativeresearch relationship of KAKEN database, and analyze it from the viewpoints of knowledgeaccumulation/transfer and knowledge combination/fusion. We made genealogy maps of researchers foreach research category of Kakenhi, and visualized flows of the knowledge. And we also extractedresearchers who mediate and promote the flow of knowledge, what we call "Gatekeepers", and analyzedfeatures of them.