Look back on the Study Life of 40 Years in the Disaster Prevention Research Institute, Kyoto University

For 40 years, I have been engaged in a research and education in Disaster Prevention Research Institute (DPRI) and Department of Civil and Earth Resources Engineering, Kyoto University. In the term, I moved to several research sections in DPRI. I would like to introduce what kind of research topics I engaged in and how the research topics were determined in these research sections. I will be happy if the paper can be of any help to your research life.