In 1869, he was assigned to Shosakan (Junior clerk) of Juhoso (gunnery division) and became in charge of manufacturing gunpowder, and he started working in Nakagawa-machi, Naka County (Chikuzen Province) (Fukuoka Prefecture).
1869年　銃砲曹少属火薬製造担当に任ぜられ、那珂郡(筑前国)那珂川町(福岡県)勤務となる。