Koji Nagata graduated from The Graduate University of Advanced Sciences' PhD (School of Advanced Sciences) course in March, 2003, and received his PhD degree from the university. His academic work has been broadly based in the property of the quantum theory. Professional experience : Research fellow at National Institute of Information and Communications Technology (NICT). Guest researcher at Institute of Theoretical Physics and Astrophysics, University of Gdan´sk. Research Professor at Department of Physics,Korea Advanced Institute of Science and Technology (KAIST). Research fellow at Obihiro University of Agriculture and Veterinary Medicine. Research fellow at Future University Hakodate. Independent Researcher (also engaged in commercial activities). Researcher at Department of Physics, Korea Advanced Institute of Science and Technology (KAIST).