Background
Hirotaro Yokoi was born in 1910 in Aichi, Japan.
博太郎 横井
Hirotaro Yokoi was born in 1910 in Aichi, Japan.
Hirotaro Yokoi engaged in wholesale trade of sugar, wheat flour and millet jelly (from 1930). He became president of Yokoi Store (1937), of Nagoya Sugar Manufacturing Company (1948) and of Yamato Industrial Company (1949).