United States Nuclear Regulatory Commission - Protecting People and the Environment

Masayoshi Kojima

Masa Kojima is a Chief Researcher in the Nuclear Regulation Authority, Japan (JNRA). He works primarily on the research on effects of irradiation and pathology for concrete structures in the nuclear power plants. In addition, he is involved in the technical support on the audit on the aging evaluation reports of the nuclear power plants for the degradation of metal and concrete materials.

Masa is currently a member of the WGIAGE* Concrete Sub-Group on the OECD/NEA since April 2016.

*WGIAGE: Working Group on Integrity and Aging of Components and Structures.

Masa joined the JNRA in 2014. Prior to joining the JNRA, he worked at the Japan Nuclear Energy Safety Organization (JNES) for 10 years, where he organized safety researchers on the nuclear facilities for 4 years and was a regulatory inspector on the nuclear facilities for 6 years. In addition, he worked at the Toshiba Corporation for 9 years before the JNES, where he held roles as a technical engineer on the manufacture and the repair of the nuclear power plants of the BWR. Masa has master’s degrees in mechanical engineering and has over 20 years of experience in the nuclear engineering field, of which the last 4 years are with the JNRA.
Page Last Reviewed/Updated Monday, June 04, 2018