He obtained his diploma in physics at the University of Tokyo in 1948 , and his PhD from Osaka University in 1955 for his thesis on the nuclear potential .
Nishijima was born in Tsuchiura , Japan on 4 October 1926 .
Nishijima obtained Nishijima 's diploma in physics at the University of Tokyo in 1948 , and his PhD from Osaka University in 1955 for his thesis on the nuclear potential .
Nishijima was born in Tsuchiura , Japan on 4 October 1926 .