Treasures of JapanA catalogue of Japan's designated cultural properties 2,690 works catalogued

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Important Cultural Property

Blade for a Long Sword (Tachi), Named Fukushima Kanemitsu

太刀長船兼光（名物福島兼光）

At a glance — Swords & Armour · Nanbokuchō period, 14th century · held by Tokyo National Museum · designated Important Cultural Property of Japan · Osafune Kanemitsu.

Fact Sheet

Designation: Important Cultural Property (重要文化財)
Category: Swords & Armour
Period: Nanbokuchō period, 14th century
Date: 1301–1400
Creator: Osafune Kanemitsu (長船兼光、備前国長船兼光、備前長船兼光)
Held by: Tokyo National Museum
Location: Ueno, Tokyo
Catalogue ID: cobas-77969

Find more

Same period: Nanbokuchō swords & armour →
Same creator: Osafune Kanemitsu →
At this museum: All 1632 works here →

This blade is named after one of its previous owners, Fukushima Masanori (1561–1624), a renowned warlord who fought during Japan’s Warring States period. The blade’s surface is engraved with an image of a dragon coiled around a sword. This symbol represents Wisdom King Fudō, a powerful Buddhist god believed to protect the blade’s owner in battle.

— Museum description: Tokyo National Museum (CC BY 4.0), via ColBase / Japan Search.

Record & Sources

Designation: Important Cultural Property (重要文化財), Government of Japan
Catalogue ID: cobas-77969 (permanent)
Official record: Japan Search — jpsearch.go.jp/item/cobas-77969
Holder's collection: ColBase — Tokyo National Museum
Photograph: Tokyo National Museum, via ColBase — CC BY 4.0. CC BY 4.0 licence
Credit as recorded: Gift of Mr. Watanabe Sei'ichirō

Cite this page: “Blade for a Long Sword (Tachi), Named Fukushima Kanemitsu（太刀長船兼光（名物福島兼光））.” Treasures of Japan, catalogue no. cobas-77969. Tokyo National Museum. https://treasures.yamato-kenkou.com/treasures/blade-for-a-long-sword-tachi-named-fukushima-kanemitsu/ — entry last verified 1 November 2026.

Full record data (as published in the official catalogue record)

Category: Applied arts:Arms and armor:Blades:Tachi
Genre: Arms & Armor
Cultural property designation: Important Cultural Property
員数: 1口
分類: 刀剣
種別: 工芸:武器・武具:刀剣:太刀
銘文等: 銘備州長船住兼光／観応□年八月日

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