However, the original owners were mostly unknown, so the property right was transferred to the government, and such swords are called 'Akabane Swords' among fanciers of swords.
しかし、元の所有者が殆ど不明のため、所有権は政府に移り、刀剣愛好家の間でこれらの刀剣は「赤羽刀」と呼ばれている。