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 ("Katana")

刀
Blade for a Long Sword ("Katana") (刀)
PLATE IImage: Tokyo National Museum, via ColBase — CC BY 4.0
At a glance — Swords & Armour · Azuchi-Momoyama period · held by Tokyo National Museum · designated Important Cultural Property of Japan.

Fact Sheet

Designation
Important Cultural Property (重要文化財)
Date
1501–1700
Location
Ueno, Tokyo
Catalogue ID
cobas-77960

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Kuniyasu was a disciple of Horikawa Kunihiro, an influential master swordsmith who lived in Kyoto about 400 years ago. This rare blade is one of few surviving examples of Kuniyasu’s work. Its powerful curvature and vivid tempering pattern along the cutting edge show that Kuniyasu’s skill rivaled that of his master.

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

Record & Sources

Cite this page: “Blade for a Long Sword ("Katana")（刀）.” Treasures of Japan, catalogue no. cobas-77960. Tokyo National Museum. https://treasures.yamato-kenkou.com/treasures/blade-for-a-long-sword-katana-77960/ — entry last verified 1 November 2026.
Full record data (as published in the official catalogue record)
  • Genre: Arms & Armor
  • Category: Applied arts:Arms and armor:Blades:Katana
  • Cultural property designation: Important Cultural Property
  • 員数: 1口
  • 分類: 刀剣
  • 種別: 工芸:武器・武具:刀剣:刀
  • 銘文等: 銘 国安

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