Since after Izuminokami MATSUKATA at the age of 15 went to Nagasaki to learn the manufacturing of guns at the behest of the lord in the 17th century, the family had gotten salaries by supervising the gun manufacturing.
17世紀に松方和泉守が15歳で主命を受けて長崎に鉄砲製造の術を研究に行って以来、鉄砲製造を監督指導して禄を食んできた。