Dr. Ishikawa has more than 50 years of experiences in the area of nuclear power generation and its safety. He started to work in 1957 in Japan Atomic Energy Research Institute, for construction and operation of Japan Power Demonstration Reactor (JPDR), 15 MW Boiling Water Reactor (BWR), which was the first nuclear power plant in Japan. After that, he joined in Special Power Excursion Reactor Test Program (SPERT) project, NRTS, in U.S.A. He worked for nuclear safety, especially leading fuel behavior program, Nuclear Safety Research Reactor (NSRR), and safety analysis. In addition, he had an unique experience to direct decommissioning work of The Japan Power Demonstration Reactor (JPDR), Japan Atomic Energy Research Institute (JAERI) which was one of the pioneer works in the world. He was assigned the Professor in Hokkaido University in 1991, and the Technical Adviser of Nuclear Power Engineering Corporation in 1997. He served as the Advisory member of Nuclear Safety Commission (NSC), Nuclear and Industrial Safety Agency (NISA) in Japan, for 30 years as well as contributed a member of international meetings and advisory groups at Organization for Economic Cooperation and Development/Nuclear Energy Agency (OECD/NEA) and the International Atomic Energy Agency (IAEA). From 2005, he served as a president for 3 years at Japan Nuclear Technology Institute, and then, he acceded to Chief Adviser from March, 2008 to Sep. 2012 at Japan Nuclear Technology Institute (JANTI).