This katana is attributed to Uda Kunimune, a principal smith of the Uda School from Etchū Province, active during the Nanbokucho Era. It features a graceful tachi sugata with strong koshi-zori, characteristic of the Late Kamakura period, and a refined itame mixed with mokume jihada. The blade comes with an elegant itomaki no tachi koshirae, decorated with Imperial Chrysanthemum and Kiri-mon crests.
mumei · Uda · Eikyo (1429-1441) · nagasa 69.8cm · sori 3cm





















Uda (Etchū), Yamato-derived · Etchu · around 1429-1479
Fujishiro Jo saku · Tōken Taikan top 60%
2 pieces on the market now
One signed Uda Kunimune katana carries a Bunmei 11 date of 1479 cut on the reverse of an essentially ubu tang, and that single dated blade fixes the smith his name records best: a maker of the Etchū Uda school working in the middle of the Muromachi period. The published sources hold the first-generation Kunimune to be a son of Ko-Nyūdō Kunimitsu, the founder who carried the line north from Uda District in Yamato to Etchū around the Bunpō era at the close of the Kamakura period, and the younger brother of Kunifusa. The name then continued through several generations from the Nanbokuchō period down through the late Muromachi and on into the shintō era, so that a signed Uda Kunimune is read less as one hand than as the school manner of a period. Because the school's smiths individuate little, the published record appraises the surviving signed work by shape and the character of ji and ha rather than by an individual signature, placing the dated and dateable pieces around the Bunmei era when the Uda school flourished.
His work is read in two faces over one jigane. The quieter is the Yamato root the school never lost, seen most plainly on a signed ubu tantō in hira-zukuri with customary uchizori and a gomabashi carving. There the kitae is a ko-itame with masame-hada mixing in toward the edge, ji-nie adhering and chikei entering, and over it the temper is a chū-suguha with the nioiguchi somewhat tight, ko-nie adhering, the boundary near the hamachi tending toward yakikomi, the bōshi running straight into a ko-maru. The published sources read this register as a clear statement of origin, observing that the forging in which flowing masame mingles with the grain vividly expresses the Yamato tradition[[c:1]] and that the blade as a whole displays the distinctive character of Uda work[[c:2]].
The more active face is the school's Muromachi midare, the manner the published sources date to around the Bunmei era from the shape and the character of ji and ha. Over an itame mixed at times with mokume, flowing and standing rather than lying flat, the temper is a gunome broken by ko-notare, ko-gunome, chōji-like elements and a pointed tendency, with ashi and yō entering well, ko-nie adhering and sunagashi running frequently. Here and there slight yubashiri and nijūba appear, and on the widest blade the yakihaba broadens until from the middle upward it reaches the shinogi and around the monouchi shows an overall hitatsura-like temper, the bōshi a midare-komi vigorous in nie and carrying tobiyaki, tempered down long into the tang. On the calmer pieces that turnback becomes ko-maru-like and shows hakikake. The published sources call one such wakizashi a fine example in which the nioiguchi is bright and ko-nie adheres well, demonstrating not only the maker's style but the distinctive character of the whole Uda school[[c:3]].
Under both faces lies the one jigane the appraisal turns on. His is an itame that flows and tends to stand, masame mixing in toward the edge, ji-nie adhering and chikei intermingling, and it is this northern, Yamato-derived steel that returns an Uda blade to its school when the temper alone might recall a Yamashiro or Sōshū hand. The carving on his blades extends the same Yamato temperament: the dated wakizashi bears long bonji set one above another with a suken below on the omote, and three bonji with a koshihi in kaki-nagashi on the ura, work the published sources judge splendid. The signatures are a four-character mei cut with a fine or somewhat thick chisel below the mekugi-ana, and the tangs are ubu or only very slightly machi-okuri, the feature that makes these blades documents as much as swords.
What sets his work apart is read through his own grounded traits rather than through any borrowed comparison. The flowing, standing itame with its mixed masame, the frequent sunagashi, and the gunome carrying pointed elements and ko-notare are the marks the published record names as the Uda character, against which his single suguha tantō stands as the quiet Yamato counterpart. The published sources are explicit that this is a school appraisal: they record the founder's migration from Yamato to Etchū, the descent of Kunimune from Kunimitsu and his place beside Kunifusa, and the continuation of the name through several generations, and they assign the dated and dateable signed pieces to the Bunmei era on the evidence of shape and workmanship. Across the corpus the resemblance to the Sōshū-leaning Uda manner of the Nanbokuchō generations is present in the nie activity, while the brightness of the nioiguchi and the standing northern jigane keep the verdict with the Uda school.
The whole of Kunimune's official record is held in the Juyo tier, where four signed blades survive across tachi, katana, wakizashi and tantō, with Fujishiro rating him Jō-saku and the Tōkō Taikan placing him at 300. He has no National Treasures and no Important Cultural Properties, so the honest account is of a school name carried by Juyo-ranked work and by its value as research material rather than of a roll-call of famous swords. The published sources single out the dated tachi for exactly this, noting that ubu signed tachi of this period are few and that the blade is therefore valuable source material[[c:4]], and they read the dated katana as an important document for research into the smith and the school, sound in both ji and ha. Two of his blades are recorded in the Imperial Collection, the most distinguished provenance his work carries. For a private collector the signed Uda Kunimune pieces in the Juyo tier come to market only from time to time and with patience, a maker whose blades reward the student of how the Yamato tradition was carried into the northern provinces more than the chaser of a celebrated name.
Where Kunimune 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.
Years he was demonstrably active, proven by signed-and-dated blades
Wakimono · Etchu
Phase: Uda宇多· 1390–1596
36 pieces on the market now
Where Ko-Uda closes with the Nanbokuchō generations, the chapter that follows opens in early Muromachi and runs to the end of the period. The setsumei draw the boundary plainly: works that descend no later than Nanbokuchō are called Ko-Uda, while everything thereafter is referred to simply as Uda. This later phase is the long Muromachi continuation in Etchū, where the Kuni-named line that began with Ko-Nyūdō Kunimitsu of Uda District in Yamato extends across successive generations sharing single names. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kunihisa國久 | 1394-1428 | 10 |
| Kunimune國宗 | 1429-1479 | 6 |
| Kunifusa國房 | 1455-1457 | 3 |
| Tomotsugu友次 | 1381-1384 | 3 |
| Kunitsugu國次 | 1469-1487 | 3 |
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.
NBTHK official siteTo facilitate this, we offer a three-day inspection period. To initiate a return, you must notify us within three days of the package being delivered. Once we confirm your request, you have seven days to ship the item back to us. The item must be returned in its original condition, including all accompanying documents, certificates, and packaging materials. The buyer is responsible for covering the shipping costs and insurance for the return shipment.
This katana is attributed to Uda Kunimune, a principal smith of the Uda School from Etchū Province, active during the Nanbokucho Era. It features a graceful tachi sugata with strong koshi-zori, characteristic of the Late Kamakura period, and a refined itame mixed with mokume jihada. The blade comes with an elegant itomaki no tachi koshirae, decorated with Imperial Chrysanthemum and Kiri-mon crests.
mumei · Uda · Eikyo (1429-1441) · nagasa 69.8cm · sori 3cm





















Uda (Etchū), Yamato-derived · Etchu · around 1429-1479
Fujishiro Jo saku · Tōken Taikan top 60%
2 pieces on the market now
One signed Uda Kunimune katana carries a Bunmei 11 date of 1479 cut on the reverse of an essentially ubu tang, and that single dated blade fixes the smith his name records best: a maker of the Etchū Uda school working in the middle of the Muromachi period. The published sources hold the first-generation Kunimune to be a son of Ko-Nyūdō Kunimitsu, the founder who carried the line north from Uda District in Yamato to Etchū around the Bunpō era at the close of the Kamakura period, and the younger brother of Kunifusa. The name then continued through several generations from the Nanbokuchō period down through the late Muromachi and on into the shintō era, so that a signed Uda Kunimune is read less as one hand than as the school manner of a period. Because the school's smiths individuate little, the published record appraises the surviving signed work by shape and the character of ji and ha rather than by an individual signature, placing the dated and dateable pieces around the Bunmei era when the Uda school flourished.
His work is read in two faces over one jigane. The quieter is the Yamato root the school never lost, seen most plainly on a signed ubu tantō in hira-zukuri with customary uchizori and a gomabashi carving. There the kitae is a ko-itame with masame-hada mixing in toward the edge, ji-nie adhering and chikei entering, and over it the temper is a chū-suguha with the nioiguchi somewhat tight, ko-nie adhering, the boundary near the hamachi tending toward yakikomi, the bōshi running straight into a ko-maru. The published sources read this register as a clear statement of origin, observing that the forging in which flowing masame mingles with the grain vividly expresses the Yamato tradition[[c:1]] and that the blade as a whole displays the distinctive character of Uda work[[c:2]].
The more active face is the school's Muromachi midare, the manner the published sources date to around the Bunmei era from the shape and the character of ji and ha. Over an itame mixed at times with mokume, flowing and standing rather than lying flat, the temper is a gunome broken by ko-notare, ko-gunome, chōji-like elements and a pointed tendency, with ashi and yō entering well, ko-nie adhering and sunagashi running frequently. Here and there slight yubashiri and nijūba appear, and on the widest blade the yakihaba broadens until from the middle upward it reaches the shinogi and around the monouchi shows an overall hitatsura-like temper, the bōshi a midare-komi vigorous in nie and carrying tobiyaki, tempered down long into the tang. On the calmer pieces that turnback becomes ko-maru-like and shows hakikake. The published sources call one such wakizashi a fine example in which the nioiguchi is bright and ko-nie adheres well, demonstrating not only the maker's style but the distinctive character of the whole Uda school[[c:3]].
Under both faces lies the one jigane the appraisal turns on. His is an itame that flows and tends to stand, masame mixing in toward the edge, ji-nie adhering and chikei intermingling, and it is this northern, Yamato-derived steel that returns an Uda blade to its school when the temper alone might recall a Yamashiro or Sōshū hand. The carving on his blades extends the same Yamato temperament: the dated wakizashi bears long bonji set one above another with a suken below on the omote, and three bonji with a koshihi in kaki-nagashi on the ura, work the published sources judge splendid. The signatures are a four-character mei cut with a fine or somewhat thick chisel below the mekugi-ana, and the tangs are ubu or only very slightly machi-okuri, the feature that makes these blades documents as much as swords.
What sets his work apart is read through his own grounded traits rather than through any borrowed comparison. The flowing, standing itame with its mixed masame, the frequent sunagashi, and the gunome carrying pointed elements and ko-notare are the marks the published record names as the Uda character, against which his single suguha tantō stands as the quiet Yamato counterpart. The published sources are explicit that this is a school appraisal: they record the founder's migration from Yamato to Etchū, the descent of Kunimune from Kunimitsu and his place beside Kunifusa, and the continuation of the name through several generations, and they assign the dated and dateable signed pieces to the Bunmei era on the evidence of shape and workmanship. Across the corpus the resemblance to the Sōshū-leaning Uda manner of the Nanbokuchō generations is present in the nie activity, while the brightness of the nioiguchi and the standing northern jigane keep the verdict with the Uda school.
The whole of Kunimune's official record is held in the Juyo tier, where four signed blades survive across tachi, katana, wakizashi and tantō, with Fujishiro rating him Jō-saku and the Tōkō Taikan placing him at 300. He has no National Treasures and no Important Cultural Properties, so the honest account is of a school name carried by Juyo-ranked work and by its value as research material rather than of a roll-call of famous swords. The published sources single out the dated tachi for exactly this, noting that ubu signed tachi of this period are few and that the blade is therefore valuable source material[[c:4]], and they read the dated katana as an important document for research into the smith and the school, sound in both ji and ha. Two of his blades are recorded in the Imperial Collection, the most distinguished provenance his work carries. For a private collector the signed Uda Kunimune pieces in the Juyo tier come to market only from time to time and with patience, a maker whose blades reward the student of how the Yamato tradition was carried into the northern provinces more than the chaser of a celebrated name.
Where Kunimune 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.
Years he was demonstrably active, proven by signed-and-dated blades
Wakimono · Etchu
Phase: Uda宇多· 1390–1596
36 pieces on the market now
Where Ko-Uda closes with the Nanbokuchō generations, the chapter that follows opens in early Muromachi and runs to the end of the period. The setsumei draw the boundary plainly: works that descend no later than Nanbokuchō are called Ko-Uda, while everything thereafter is referred to simply as Uda. This later phase is the long Muromachi continuation in Etchū, where the Kuni-named line that began with Ko-Nyūdō Kunimitsu of Uda District in Yamato extends across successive generations sharing single names. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kunihisa國久 | 1394-1428 | 10 |
| Kunimune國宗 | 1429-1479 | 6 |
| Kunifusa國房 | 1455-1457 | 3 |
| Tomotsugu友次 | 1381-1384 | 3 |
| Kunitsugu國次 | 1469-1487 | 3 |
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.
NBTHK official siteTo facilitate this, we offer a three-day inspection period. To initiate a return, you must notify us within three days of the package being delivered. Once we confirm your request, you have seven days to ship the item back to us. The item must be returned in its original condition, including all accompanying documents, certificates, and packaging materials. The buyer is responsible for covering the shipping costs and insurance for the return shipment.