In 1882, he founded a company named Banseisha in his hometown Shizuoka along with Sajibei YODA, Sono YODA and Zengo YODA, who all, including Benzo himself, became the co-founders of the company, with a capital of fifty thousand yen.
明治15年（1882年）には郷里の静岡で依田佐二平・依田園・依田善吾と勉三を発起人に、晩成社を設立し資本金を5万円とした。