Prof. Okumura has provided an invited talk at “FiMPART2017 (Frontiers in Materials Processing Applications, Research and Technology)”, which was held during July 9-12, 2017 at the Bordeaux convention centre in Bordeaux, France (http://www.fimpart.org/2017/wp/). The title of the  talk was “Heterogeneous Photocatalysis and Interfacial Magnetic Field Effect”.