He accompanied the curator of Dutch trading house, the Kapitan, as a translator eight times when he visited Edo, in addition, he also joined the negotiation for major incidents including the Return Incident as a translator.
オランダ商館長の江戸入りに8回通詞として同行したほか、リターン号事件などの大事件の際に通詞として交渉に参加した。