Claim: Masatoshi Koshiba (September 19, 1926 – November 12, 2020) was a Japanese physicist and one of the founders of neutrino astronomy He grew up in Yokosuka, completed his high school in Tokyo, graduated from the University of Tokyo in 1951 and received a Ph.D.  in physics from the University of Rochester, New York, in 1955.
Evidence: Masatoshi Koshiba (小柴 昌俊, Koshiba Masatoshi, September 19, 1926 – November 12, 2020) was a Japanese physicist and one of the founders of neutrino astronomy. He grew up in Yokosuka, and completed his high school in Tokyo. He graduated from the University of Tokyo in 1951 and received a Ph.D. in physics from the University of Rochester, New York, in 1955. 
(1926-09-19)September 19, 1926
Toyohashi, Aichi, Japan November 12, 2020(2020-11-12) (aged 94)
Tokyo, Japan Astrophysics, neutrinos Physics University of Tokyo
University of Rochester Japanese He graduated from the University of Tokyo in 1951 and received a Ph.D. in physics from the University of Rochester, New York, in 1955. He grew up in Yokosuka, and completed his high school in Tokyo.