1973 College of Technology, Ibaraki University
1997 Doctor of Science, Tokyo Metropolitan University
1968 Japan Atomic Energy Research Institute (JAERI)
1998 Senior Scientist of JAERI
2004 Principal Scientist of JAERI
2004 International Atomic Energy Agency (IAEA)
2009 Japan Atomic Energy Agency (JAEA), Principal Scientist
2009 Japan Institute of International Affairs (JIIA), Center for the Promotion of Disarmament and Non-Proliferation (CPDNP), Senior Research Fellow
Article under review: Published 101 papers
 C. Yonezawa, T. Komori: “Determination of Hafnium in Zirconium and Its Alloys by Stable Isotope Dilution-Neutron Activation Analysis”, Anal. Chem., 55, 2059-2062 (1983).
 C. Yonezawa, M. Hoshi, E. Tachikawa: “Determination of Specific Activity of Iron-55 by Spectrophotometry and Liquid Scintillation Counting with Bathophenanthroline Complex”, Anal. Chem., 57, 2961-2965 (1985).
 C. Yonezawa, A. K. Haji Wood, M. Hoshi, Y. Ito, E. Tachikawa: “The Characteristics of the Prompt Gamma-Ray Analyzing System at the Neutron Beam Guides of JRR-3M”, Nucl. Instrum. Methods Phys. Res., A329, 207-216 (1993).
 C. Yonezawa: “Prompt Gamma-Ray Analysis of Elements Using Cold and Thermal Reactor Guided Neutron Beams”, Anal. Sci., 9, 185-193 (1993).
 C. Yonezawa, A. K. Haji Wood: “Prompt Gamma-Ray Analysis of Boron with Cold and Thermal Neutron Guided Beams”, Anal. Chem., 67, 4466-4470 (1995).
Reviews and Others:
 C. Yonezawa: “Prompt Gamma-Ray Analysis with Reactor Neutrons”, Bunseki Kagaku, 51, 61-96 (2002), (in Japanese).
 C. Yonezawa, H. Matsue: “k0 Standardization for Neutron Activation Analysis”, Bunseki, 2004, 75-82, (in Japanese).
 C. Yonezawa: “Depth Profiling of Light Elements Using Neutron Induced Reactions”, J. Surf. Sci. Soc. Japan, 33, 264-271 (2012), (in Japanese).  C. Yonezawa: “Verification of Nuclear Explosion with Radioactive Noble Gas”, Bunseki, 2010, 222-228, (in Japanese).  C. Yonezawa, Y. Yamamoto: “Measurement of Artificial Radionuclides Using Radionuclide Monitoring Network of the CTBT”, Bunseki, 2011, 451-458, (in Japanese).
Books (author or co-author):
 C. Yonezawa: “Prompt gamma-neutron activation analysis,” ed., Z. B. Alfassi, “Non-Destructive Elemental Analysis,” Blackwell Sciences, Oxford, U. K., pp.58-114, (2001).
 C. Yonezawa: “Chapter 5 Quantitative multi-elemental analysis”, pp.113-135, Ed. G. Molnar, “Handbook of Prompt Gamma Activation Analysis”, Kluwer Academic Publisher, Dordrecht, The Netherlands, (2004).
 C. Yonezawa, H. Matsue, Y. Miyamoto, D. Suzuki, K. Yasuda, J. Inagawa, Y. Saito: Translation of “Practical Gamma-Ray Spectrometry” by Gordon Gilmore and John D. Hemingway, The Nikkan Kogyo Shinbun, Ltd., (2002), (in Japanese).
 C. Yonezawa and The Japan Society for Analytical Chemistry: Translation of “Quantifying Uncertainty in Analytical Measurement”, EURACHEM/CITAC Guide CG4, Third Edition, Maruzen Publishing Co. Ltd., Tokyo, Japan, (2013).
Membership in professional societies
The Japan Society for Analytical Chemistry