Ryuichi Yoneyama (米山 隆一, Yoneyama Ryūichi; born 8 September 1967) is a Japanese politician and a former Governor of Niigata Prefecture. Prior to entering politics, Yoneyama worked as a radiology researcher at the University of Tokyo Hospital and was also trained as a lawyer.
Source: “Ryuichi Yoneyama”, English Wikipedia (CC BY-SA 4.0), excerpt