NihontoWatchHôki no Kami Nobutaka (伯耆守信高) was one of the most important swordsmiths in early Edo period Owari, counted among the celebrated Owari San-saku – the Three Great Smiths of Owari – alongside Masatsune (政常) and Ujifusa (氏房). Originally trained in the Mino-den, Nobutaka relocated to Owari in the early 17th century and took up official service as a goyô kaji (clan swordsmith) for the Owari Tokugawa family – one of the three great branches (Gosanke) of the Tokugawa clan. In 1610, coinciding with the completion of Nagoya Castle, he established himself in the city’s Kaji-machi (blacksmith quarter) under Tokugawa Yoshinao, first lord of the Owari domain and ninth son of Tokugawa Ieyasu. This patronage placed Nobutaka at the very centre of arms production for one of Japan’s most powerful ruling families, and blades from the first generation are accordingly rare and highly sought. This wakizashi has travelled a remarkable road. Acquired in the UK in 2023 in rough condition, it was shipped to Japan where it received a full professional polish, a new habaki, and a fresh shirasaya – the latter inscribed with sayagaki by calligraphy artist Nozomi-san. The blade is now certified NBTHK Hozon to the first generation, shodai Nobutaka. The nakago is ô-suriage – a significant shortening undertaken at some point by a former owner to convert what was likely a full-length sword into a more practical wakizashi for paired use. As a consequence, the original signature was lost; the NBTHK attribution to shodai rests on a careful assessment of the blade’s characteristics and the absence of any generational notation on the Hozon certificate. This sword is the companion piece to ujka418 Nidai Nobutaka, and a collector’s discount will be offered to whoever wishes to keep the pair together. The blade repays close study. The jihada is a lively mix of itame, mokume, and nagare-hada laden with ji-nie and plentiful chikei – the steel given life by a mass of fine martensite crystals threading through the ground. The hamon is a vivid $1 rising in rhythmic crests reminiscent of freshly fallen snow, enriched with kinsuji, sunagashi, and isolated tobiyaki islands in robust nie-deki. The yahazu-ba – forked, dovetail-shaped elements within the midare – add further visual drama. At the tip, the bôshi transitions through hakikake into a wild kaen form that leaps like a flame. A custom silver habakiwith wave-pattern file marks, echoing the rhythm of the hamon itself, completes the presentation.
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Mino-den · Owari · around 1581-1615
Fujishiro Jo-jo saku · Tōken Taikan top 21%
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The first-generation Hoki no Kami Fujiwara Nobutaka was born in Eiroku 6 (1563) at Kami-Aruchi in Mino Province. Traditionally said to descend from the San'ami Kanekuni lineage, he received the court title of Hoki no Kami in Tensho 9 (1581) at the age of nineteen. He subsequently moved to Kiyosu in Owari Province and, in Keicho 15 (1610), accompanied Tokugawa Yoshinao to Nagoya, where he became one of the founding figures of the Owari shinto tradition. In Kan'ei 10 (1633) he retired under the Buddhist name Keiyu, dying three years later at seventy-six. His personal name was Kawamura Saemon, and the majority of his extant works are shinogi-zukuri katana and wakizashi, with hira-zukuri tanto and polearms comparatively few.
Nobutaka's forge work reveals the Mino tradition of his origin: itame-hada mixed with nagare-hada, tending toward hada-dachi, with thick ji-nie and chikei. His tempering ranges from tightly controlled notare with clear nioiguchi to bold, spirited compositions in which gunome-midare, tobiyaki, and yubashiri span into the shinogi-ji, developing into hitatsura-like all-over hardening. The nie is deep and sometimes coarsely formed, yielding nie-kuzure at the yakigashira and hotsure along the habuchi, punctuated by frequent kinsuji and sunagashi. His boshi tends to be deeply tempered with long kaeri, at times assuming an ichimai-like boldness.
Among the designated pieces, the Tensho 9 katana is celebrated as an utsushi after the renowned Inabae, executed with natural assurance immediately upon receiving his court title. His imposing o-kissaki katana display the wide-bodied proportions characteristic of the Momoyama period, while even his yari of extraordinary length show no breakdown in execution, demonstrating technical mastery across blade forms.
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.
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Years he was demonstrably active, proven by signed-and-dated blades
Mino-den · Mino
8 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. A second early smith, Kanekuni (兼国), is recorded as belonging to the San'ami lineage and is judged to predate the Sue-Seki group proper; the remote ancestry given for him runs variously to a disciple of Naoe Kanetomo, to Yamato Kanekuni, or to Kanenori, though the setsumei note that nothing survives to confirm so distant a descent. From this Mino stock came Hōki no Kami Fujiwara Nobutaka (信高), born at Kami-Ōchi in Mino in 1563 and said to descend from San'ami Kanekuni. After receiving the title Hōki no Kami in Tenshō 9 (1581) he moved to Kiyosu in Owari and, serving Tokugawa Yoshinao, later settled at Nagoya, carrying the line into the early Shintō era through a second generation who took the tonsure in Kanbun 2 (1662). Across the corpus the jigane is itame, often closely forged and tending to nagare-hada or flowing grain along the edge, with ji-nie and a frequent standing of the grain (hada-dachi); a faint whitish cast (shirake) marks the older Mino work of Kanenori and Kanekuni. The temper rests on suguha as a base. In the early hands it is a tight, clear (saete) suguha in nioi-deki, sometimes mixed with small gunome, angular elements and pointed ha, carrying ashi, hotsure and scattered tobiyaki.
The Nobutaka works open this out: a broad suguha shifting to shallow notare, ko-notare with a gunome-flavored edge, deep nioi with nie unevenly applied and partly coarse, nie-kuzure at the yakigashira, kuichigai-ba, kinsuji, sunagashi, yubashiri and tobiyaki that climb into the shinogi-ji until the upper half reads as hitatsura. The bōshi runs to sugu with ko-maru, at times midare-komi, pointed, or hakikake, and the early swords keep a slender, high-sori tachi shape while Nobutaka's carry the wide-bodied, ō-kissaki form of the Momoyama transition. The hand is recognized in this pairing of a flowing Mino itame with a suguha core that, in the descendants, breaks toward bold hitatsura. For kantei, the setsumei fix several anchors. In Kanenori's signature the scooped chisel at the fourth stroke of the character kane (兼) is read as a trait of late Nanbokuchō through Ōei work, matched in dated Kaneyoshi mei; the clear suguha of Kanekuni is likened to a Zenjō Kaneyoshi masterpiece. The jizō-flavored bōshi and the nagare-mixed itame in Nobutaka are named as the surviving stamp of the Mino root beneath his Owari manner, and one of his katana is recorded as an Inabae-utsushi. Provenance runs through the corpus: a Kanekuni bears kinzōgan recording it as the sashiryō of Ōkubo Genban-no-jō Tadanari, lord of Odawara in Sagami, worn at the age of ninety-three; Kanenori's tachi descended in the Yamanouchi family. Among the Owari yari makers beginning with Masatsune, Nobutaka's yari of extraordinary length is held in particular regard, and the second-generation Nobutaka is judged no less skilled than his father, with the finest extant Nobutaka works counted to his hand. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobutaka信高 | 1581-1615 | 3 |
| Nobutaka信高 | 1624-1644 | 2 |
| Nobutaka信高 | 1673-1681 | 0 |
| Kanekuni兼國 | 1455-1457 | 1 |
| Kanenori兼則 | 1370-1372 | 1 |
Mino in the Momoyama period
Unification closed the mass market, and Seki’s smiths moved to where the new money was: the Mishina line to Kyōto with court titles, Daidō smiths to castle towns across the provinces. Mino became the great technical ancestor of the Shintō age.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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.
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