Japan, to my knowledge, has not drank the diversity sake.
That said, the picture, as well as the name, point to some Japanese guy drinking the cool aid about 1954. I’m surprised that he was able to rise to such a powerful position in Japan.
My grandfather was stationed in Japan for a good stretch of time, and said that they were a very racist people—just like everyone else. Desegregation was going on in the States at the time, and the Japanese he encountered were horrified at two things (1) that Desegregation was happening and (2) that in the U.S. they would have been lumped in with the colored portion of the mix.