Dr. Masato Kato is currently senior princial researcher at the Sector of Fast Reactor Research and Development at the Japan Atomic Energy Agency (JAEA). He received his doctorate from Tohoku University in 2009. His work focuses specifically on the physical properties and nuclear fuel technology of plutonium oxide fuels. He is a member of the Atomic Energy Society of Japan (AESJ) and the President on its Nuclear Fuel subcommittee in 2021-2022. Dr. Masahiko Machida is currently the Deputy Director at Computational Science and E-systems at Japan Atomic Energy Agency. He received his doctorate from Tohoku University in 2000. His reseaerch area is theoretical and computational physics and chemistry on various materials including nuclear fuel compounds. He is a member of the Atomic Energy Society of Japan and Physical Society of Japan.