Ginjir Fujiwara rose rapidly through the ranks in Tokyo, he was then appointed manager of the Tomioka silk mill and was transferred to Mitsui & Co., where he was made vice-manager of the company branch in Shanghai.
He rose rapidly through the ranks, working at the branch office at Otsu, Shiga, and was assistant manager of a branch in Fukagawa, Tokyo. He was then appointed manager of the Tomioka silk mill, which was under Mitsui ownership. In 1899, he was transferred to Mitsui & Co., where he was made vice-manager of the company branch in Shanghai. 
