This is a katana by Nobutaka from the Owari province, dating back to the early Edo period around 1648. The blade has a length of 70.5cm and features a Notare and Gunome temper pattern. It comes with a shirasaya and a Tokubetsu Hozon Token certificate from the NBTHK.
mei · Keicho (1596-1615) · nagasa 70.5cm · sori 1.6cm





Mino-den · Owari · around 1624-1644
Fujishiro Jo saku · Tōken Taikan top 37%
3 pieces on the market now
Where Nobutaka stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Mino-den · Mino
9 pieces on the market now
The San'ami line takes its root in Mino Province, where its head smith Kanenori (兼則) worked as one of the so-called Seki Seven Schools. The setsumei place Kanenori from the close of the Nanbokuchō period into the Ōei era of the early Muromachi, alongside Kanemoto and Kanesada among the representative hands of Sue-Seki, and the earliest extant signed tachi of his is appraised as no later than Ōei. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobutaka信高 | 1581-1615 | 3 |
| Kanekuni兼國 | 1455-1457 | 1 |
| Kanenori兼則 | 1370-1372 | 1 |
| Nobutaka信高 | 1624-1644 | 1 |
| Nobutaka信高 | 1673-1681 | 1 |
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).
This is a katana by Nobutaka from the Owari province, dating back to the early Edo period around 1648. The blade has a length of 70.5cm and features a Notare and Gunome temper pattern. It comes with a shirasaya and a Tokubetsu Hozon Token certificate from the NBTHK.
mei · Keicho (1596-1615) · nagasa 70.5cm · sori 1.6cm





Mino-den · Owari · around 1624-1644
Fujishiro Jo saku · Tōken Taikan top 37%
3 pieces on the market now
Where Nobutaka stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Mino-den · Mino
9 pieces on the market now
The San'ami line takes its root in Mino Province, where its head smith Kanenori (兼則) worked as one of the so-called Seki Seven Schools. The setsumei place Kanenori from the close of the Nanbokuchō period into the Ōei era of the early Muromachi, alongside Kanemoto and Kanesada among the representative hands of Sue-Seki, and the earliest extant signed tachi of his is appraised as no later than Ōei. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobutaka信高 | 1581-1615 | 3 |
| Kanekuni兼國 | 1455-1457 | 1 |
| Kanenori兼則 | 1370-1372 | 1 |
| Nobutaka信高 | 1624-1644 | 1 |
| Nobutaka信高 | 1673-1681 | 1 |
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).