Having started his business as a second-class drug seller, Fujisawa established a camphor refinery in Temma, Kita Ward, Osaka City in 1898 selling "Fujisawa Camphor."
薬種商を始め、明治31年（1898年）大阪市北区(大阪市)天満に樟脳精製所を設立、藤沢樟脳を発売した。