Following up this article ..Japanese government is going to raise the safety limit for infant
The Councilor of radiation belonging to Ministry of Health, Labour and Welfare has emeritus professor, Niwa Ohtsura from Kyoto University.
This person runs his own pharmaceutical company named BioMedics corporation.This company develops drug for cancer.
Also, he is a Japanese commissioner of ICRP.(Source)
Iori Mochizuki