War at home and trade abroad made Muromachi Bizen the busiest forge region in Japan: a century of Sengoku demand after the Ōnin War, and export missions to Ming China carrying blades by the tens of thousands.
NihontoWatchNihontoWatch家助は盛光・康光と並ぶ、応永備前を代表する刀工です。「家助」は古来より「家を助く」とされ、縁起の良い銘とされ、武家では珍重されてきました。作品は小脇指・寸延短刀が多く、刀は稀れと言われています。 本作は平造、三つ棟、表は樋内俱利伽羅龍、裏は樋内素剣の彫があり、身幅に比して寸長く、反り殆ど無く、室町初期の体配です。地鉄は小板目詰んで、細かに地沸付き、精美な地鉄で、地景交じり、刃文は匂い勝ちの細直刃で、帽子は表裏共に焼き詰風となる出来です。家の守り刀としてお勧めの一振りです。
Certificate reading — 銘 家助
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Bizen Osafune, Kozori group (Oei-Bizen) · Bizen · around 1394-1428
Fujishiro Chu-jo saku · Tōken Taikan top 23%
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Iesuke is a Bizen Osafune smith of the Hatakeda line whose dated tachi run across the Ōei era of the early Muromachi period and, on one Important Cultural Property dated Eikyō 8 (1436), beyond it, and whom the published sources name, beside Morimitsu, Yasumitsu and Tsuneie, as one of the representative swordsmiths of Ōei-Bizen[[c:1]]. The earliest dated work on record is a quiet tachi of Ōei 3 (1396); the bolder pieces commonly seen carry dates from the teens and twenties of the era, one signed tachi of Ōei 19 reaching Tokubetsu Jūyō and another of Ōei 21 (1414) designated an Important Cultural Property. His name and his line are themselves a problem the sources set out plainly. The reference works trace a first generation to a son of Hatakeda Moriie about the Bun'ei era, yet among examined blades none predate the Nanbokuchō, the oldest read as Bunwa-era work; the surviving generations are therefore taken as one continuous Hatakeda hand rather than separated with confidence, the question of whether the early Ōei 3 tachi is a predecessor or an early work of the same man left open for further study.
His characteristic hand is the Ōei-Bizen midare. Over an itame that tends overall to stand a little, mixed in places with ko-itame, mokume and flowing nagare-hada, the steel carries ji-nie and chikei, and across it rises a bō-utsuri or a clear midare-utsuri, the bar-like reflection the published sources single out as one mark of Ōei-Bizen. The temper is a gunome that opens broadly at the valley, the koshi-biraki gunome the sources name as common to the Ōei masters, mixed with chōji, ko-chōji and pointed togariba, at times a small notare. Ashi and yō enter frequently, the construction is nioi-based with a ko-nie feeling, and in the lower half sunagashi and kinsuji run through the temper. The bōshi turns back in a midare-komi with a pointed feeling, sometimes a ko-maru, now and then with tobiyaki toward the point.
The jigane is the feature by which the judges set him a step apart from the leading Ōei names. They find his forging tending a touch more toward standing grain and his nioiguchi a touch tighter, at times a little subdued, yet they grant that in technical terms his best blades are "in no way inferior"[[c:2]] to Morimitsu and Yasumitsu. The ji of his finest pieces is well-refined and moist, with ji-nie, chikei and midare-utsuri, and the work within the temper is its real strength; of the Tokubetsu Jūyō tachi the published commentary writes that "the activity within the temper of this tachi is especially splendid."[[c:3]] Devotional and practical carving recur in the form of bō-hi, with tsure-hi or soe-hi on the shortened attributions and bonji cut into the shinogi-ji of one signed uchigatana.
The published sources draw his work into two registers explicitly. Beside the typical Ōei-Bizen midare they set "a somewhat calmer, suguha-toned hamon,"[[c:4]] a chū-suguha mixed with ko-gunome over a tightened, flowing itame with ji-nie, chikei and a faint utsuri, the nioiguchi tight with nie and sunagashi, the bōshi straight to a ko-maru with hakikake at the tip. His surviving blades divide between the ubu, signed and dated tachi and the ō-suriage mumei katana later attributed to him, several of which had passed under other names before being read by period and manner as his late-Nanbokuchō-to-Ōei work; one such blade, once appraised as Sanemori, was returned to him.
The published sources name what sets the Hatakeda Iesuke apart. His koshi-biraki gunome and bō-utsuri mark his typical midare as Ōei-Bizen rather than mid-Kamakura work, and his standing itame and tightened, subdued nioiguchi set him beside Morimitsu and Yasumitsu yet a little apart from them; the published sources liken one of his finest dated katana to Osafune Masamitsu[[c:5]] in its standing itame, mottled ji and shallow ko-notare mixed with open-valley gunome. His earliest dated tachi, of Ōei 3, they describe as quiet and Kozori-like[[c:6]], and they judge that, although his name is less widely known than the leading Ōei smiths', works such as his best tachi show he "deserves to be evaluated more highly."[[c:7]]
For the collector he is a documentary name rather than a household one. Fujishiro grades him Chū-jō saku. He has no National Treasures; his record reaches instead the Important Cultural Property rank, with two signed, dated tachi designated, of Ōei 21 and Eikyō 8, whose plates record an itame with a midare and an itame with a ko-midare. Nine of his blades stand in the Tokubetsu Jūyō and Jūyō tiers. His blades are preserved in collections grounded in their own provenance, the Ōei 19 tachi held by the Hayashibara Museum of Art and transmitted through the Kaga Maeda house, one Important Cultural Property at Kasuga Taisha, and a shortened katana that was the battlefield sword of Ikeda Katsunyū before later owners had it cut down. Those blades are largely held rather than traded, so a signed and dated Hatakeda Iesuke comes to market only seldom and from time to time; the published sources call such a blade "of high value as reference material"[[c:8]].
Where Iesuke 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
Bizen-den · Bizen
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The Kozori (小反り) form a loose body of Bizen smiths who worked at and around Osafune in the closing decades of the Nanbokucho period and on into early Muromachi, and the NBTHK defines them less by descent than by exclusion: they are the late-Osafune hands who fall outside the specific lineages of Kanemitsu, Chogi, Motoshige and the Omiya group, gathered under one name as a convenience. The reading of the name itself has been explained in several ways, and the published sources are candid that it resists a clean definition; the prevailing sense is the ko-sori, the slight or shallow reverse-curvature of the blades, the shape running to a deep koshizori with marked funbari and a small point in the older pieces and growing heavy in the kasane toward Oei. The body has no single founder. Smiths such as Moromitsu (師光), recorded as the father of the Oei master Morimitsu, anchor the group through dated tachi; Iesuke and Iemori carry Hatakeda blood; Nariie descends from Kagehide; Morisuke, Shigeyoshi, Tsunehiro, Hidemitsu, Motomasa and others fill out the periphery, several of whose lines run several generations and whose precise generation-by-generation reading the institution leaves to further study. Across these hands runs a shared vocabulary, and the recurring word for it is scale. The jigane is the constant: an itame mixed with mokume and nagare, the grain standing a little (hada-tachi), fine ji-nie attaching, dark chikei-toned and at times jifu-like passages crossing the steel, and over it the midare-utsuri (sometimes a bo-utsuri or straight sugu-utsuri) that places the group squarely in the Bizen-den. The temper is nioi-based with ko-nie, built on a shallow ko-notare into which the smiths set ko-gunome running connected and threaded, pointed togariba, angular squared elements, open-waisted koshi-biraki gunome and modest choji, the whole kept small and crowded (kozumu), with ko-ashi and yo entering and fine sunagashi and kinsuji playing through. The boshi answers in midare-komi, pointing or settling to a ko-maru with hakikake.
Within the shared idiom each hand has its tell: Moromitsu tempers the most subdued, low-lying midare; Nariie's gunome crowds where Kanemitsu's opens; Hidemitsu and Hidemitsu of the Koreha branch lean to a reverse-slanting saka-gakari and saka-ashi near the Aoe manner, and turn now and then to a quiet chu-suguha; Tsunehiro favours a kataochi-like gunome; Iesuke and Iemori, working into Oei, open the valleys toward the early-Muromachi pattern. A collector seeks Kozori for legibility rather than flourish. Many of the best survivors are ubu, signed and dated tachi, and that dated file (Joji, Oan, Eiwa, Shitoku, Eitoku, Meitoku into Oei) gives the late history of Osafune a year-by-year spine, prized as reference material for the period; the names also map a province pulled between the Northern and Southern courts, Morisuke's Joji dates reading as Northern Court alignment. To kantei the group is to read it against its neighbours: the small, crowded, nioi-toned midare and the standing itame with kawarigane chikei separate it from the bolder, more uniform gunome of the Kanemitsu mainline of the Nanbokucho height, while the open koshi-biraki valleys and the heavier, sakizori late sugata point forward to and distinguish it from the more decorative Oei-Bizen of Morimitsu and Yasumitsu (a threshold several Kozori blades, in NBTHK phrasing, already anticipate). Among the members the institution ranks Moromitsu and Nariie high (Nariie held equal to the Kanemitsu pupil Masamitsu), Iesuke beside the leading Oei names, and Hidemitsu the leading hand of the Koreha branch. Provenance, though thinly recorded for some, reaches real houses: blades descend through the Kuroda, Kaga Maeda, Shonai Sakai and Hojo families, with examples in the Hayashibara Museum and the national museums, and the occasional Imperial line. A signed, dated Kozori blade comes to hand only from time to time, a quiet, datable window onto Osafune as it closed its Nanbokucho age. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Hidemitsu秀光 | 1375-1392 | 19 |
| Iesuke家助 | 1394-1428 | 11 |
| Iemori家守 | 1377-1406 | 15 |
| Nariie成家 | 1352-1362 | 21 |
| Morisuke守助 | 1354-1384 | 7 |
Bizen in the Muromachi period
War at home and trade abroad made Muromachi Bizen the busiest forge region in Japan: a century of Sengoku demand after the Ōnin War, and export missions to Ming China carrying blades by the tens of thousands.
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.
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