He returned to Morioka, and assisted by an engineer on loan from Satsuma Domain, built a new western-style blast furnace near local deposits of magnetite in 1857.

The furnace was based on a design found in the Dutch engineering text Het Gietwezen in s' Rijks Ijzer-Geschutgieterij te Luik by Huguenin.

Although the project was technically successful, the Tokugawa shogunate did not pursue further development due to the Mito rebellion and the suppression of western-style innovation during the Ansei Purge by the tairō Ii Naosuke.

Morioka Domain quickly expanded operations, constructing two more blast furnaces to produce 1125 tons of pig iron per year, using over 1000 workers, making it the largest smelter in Japan at the time.

[3] The American Society of Metals recognized the site as a historical landmark in 1984, noting its contribution to the development of the Yawata Iron and Steel Works.