Yamaji was born in Hyogo Prefecture on August 31, 1929.
After graduating from Waseda University, he played for Sumitomo Metal.
He also played for Osaka SC and won the 2nd place at Emperor's Cup 3 times (1951, 1952 and 1953).
In March 1954, Yamaji was selected Japan national team for 1954 World Cup qualification.
This biographical article related to a Japanese association football defender born in the 1920s is a stub.