He is belonging rural planning laboratory in Innovative Research Center for Agricultural Sciences. His major is environmental impact assessment, such as Life Cycle Assessment. His LCA method was differ from conventional one. In an ordinary way, subject of LCA is a product or a service. But he tried to treat an area by LCA method. Though, he had been actual rural area frequently, and interviewed a lot of rural habitats. That is what he got for interested in consciousness structure of human being. For example, "Why does a farmer insist on his own land? What is that cause?"