Yoshio Kōsaku

Yoshio Kōsaku (吉雄 幸作) (1724 – October 4, 1800), also known as Yoshio Kōgyū (吉雄 耕牛) was a Japanese physician and scholar of "Dutch studies" (Rangaku), and the chief Dutch translator in Nagasaki, often accompanying Dutch East India Company officials on missions to Edo and other official business.

Yoshio Kōsaku

Yoshio Kōsaku (吉雄 幸作) (1724 – October 4, 1800), also known as Yoshio Kōgyū (吉雄 耕牛) was a Japanese physician and scholar of "Dutch studies" (Rangaku), and the chief Dutch translator in Nagasaki, often accompanying Dutch East India Company officials on missions to Edo and other official business.