Kuniki HATA is a researcher of Research Group for Materials Evaluation and Concurrent researcher of Research group for Nuclear Resistant Materials at Japan Atomic Energy Agency. He received his doctor degree of engineering from Tokyo University in 2011, and he has been a researcher at Japan Atomic Energy Agency since 2011. His main research themes are, radiolysis of contaminated water in Fukushima Daiichi Nuclear Power Plant and irradiation embrittlement of reactor pressure vessels. He is a member of the Atomic Energy Society of Japan, the Japan Society of Radiation Chemistry, and the Japan Society of Corrosion Engineering.