Moromitsu is a Bizen Osafune smith of the late Nanbokuchō period whose dated tachi run from the Eiwa and Ōan eras through Meitoku and into the Ōei era. The published sources record him in the Meikan as 'the son of Rinkō and the father of Morimitsu'[[c:1]], the elder name standing one generation before the Ōei-Bizen master, and they place him among the late-Nanbokuchō Osafune smiths grouped together as the Kozori, the small-curvature makers: he is read as 'one of the representative smiths of the later Nanbokuchō group commonly described as the small-sori makers'[[c:2]]. Two generations worked under the name, and the Ōei-dated blades are read as the second, though the commentary grants that strict separation of the hands awaits further study. He is a documentary smith above all, an ubu, signed and dated witness to a quiet corner of Osafune at the threshold of the Muromachi age.

His characteristic hand is a small-patterned gunome-midare whose valleys open toward the koshi. Over the body of the temper he sets ko-gunome, ko-notare, pointed and angular elements and a little chōji, the whole running small and subdued, what the published sources call kozumu, with ashi and yō entering, the temper nioi-dominant and laid with ko-nie, and fine sunagashi sweeping through. The bōshi runs in midare-komi and turns back with a pointed tendency or a small ko-maru. It is a manner of restraint rather than display, and the judges name that restraint directly: his work, they write, 'is more subdued in comparison with makers such as Morimitsu and Yasumitsu'[[c:3]], the same Bizen idea tempered on a smaller, plainer scale than the Ōei masters who came after him.

The jigane is the constant beneath that quiet edge. He forges an itame, frequently flowing and mixed with mokume and standing grain, the steel taking ji-nie and at its best a clear bō-utsuri running straight along the blade, while on his fuller late pieces a midare-utsuri stands and a darkened, chikei-like iron enters the jigane. The reflection is the old Bizen tell, here read in the smaller key of the late period. Over it the hamon keeps to its small irregular line, the nioiguchi inclined to tightness, the activity carried in ashi and yō and in sunagashi rather than in towering clusters of clove-flower, so that ji and ha together present the irregular, finely worked surface the sources hold typical of the Kozori group.

His record divides into more than one register. Most of his signed blades are tachi of the ko-sori type, but a smaller body of work abandons the midare for a suguha-toned temper carrying ko-gunome and a kataochi-like manner, the bōshi finishing in hakikake with a yakitsume. This quieter register is seen on his small hira-zukuri tantō, which often add devotional carving of bonji and a sankozuke-ken, and on a rare ken, of which the published sources observe that 'examples of ken are few in any period'[[c:4]] and call it 'a notably rare piece as a ken by Moromitsu'[[c:5]]. On his finest late tachi the manner instead widens: the midare valleys open further and tobiyaki and muneyaki appear, features the judges read as 'already showing signs that foreshadow the style of Ōei-Bizen'[[c:6]].

What sets Moromitsu apart is exactly this threshold position. He works in a smaller, plainer pattern than the Osafune masters of the Nanbokuchō height, and his temper is held more subdued than that of his son Morimitsu and of Yasumitsu in the next age; yet his own koshi-open gunome, his straight bō-utsuri and the opening midare of his late tachi look forward to the Ōei flowering of the school. The published commentary draws the point as connoisseurship: because his ubu, dated blades carry a signature 'sharing points in common with Bizen works of the Ōei era, this piece constitutes valuable source material for research into Bizen smiths of this period'[[c:7]]. He is, in short, the documented hinge between the Nanbokuchō Osafune mainstream and Ōei-Bizen.

For the collector Moromitsu survives chiefly as signed, dated tachi, with three of his works designated Important Cultural Property and a body of others passed at the Jūyō rank; he has no National Treasures. His provenance is real and notable: a tachi of his is held in the Imperial collection, one dated tachi passed by shogunal bestowal in Hōreki 9 to the Iwaki house, lords of Kameda Castle, and one of his superior late tachi the sources call 'a fine work among his oeuvre'[[c:8]] and record as 'a sword transmitted in the Kuroda family'[[c:9]]. His blades are held today in the Imperial collection and in long-held private and daimyō lines rather than offered openly, and only a modest number fall in the Tokubetsu Jūyō and Jūyō tiers, so a signed Moromitsu of the ko-sori type comes to light only from time to time. A privately held example is a quiet but rewarding thing for a collector to encounter, an exactly dated document of how late Osafune turned toward Ōei-Bizen.

Moromitsu is a Bizen Osafune smith of the late Nanbokuchō period whose dated tachi run from the Eiwa and Ōan eras through Meitoku and into the Ōei era. The published sources record him in the Meikan as 'the son of Rinkō and the father of Morimitsu'[[c:1]], the elder name standing one generation before the Ōei-Bizen master, and they place him among the late-Nanbokuchō Osafune smiths grouped together as the Kozori, the small-curvature makers: he is read as 'one of the representative smiths of the later Nanbokuchō group commonly described as the small-sori makers'[[c:2]]. Two generations worked under the name, and the Ōei-dated blades are read as the second, though the commentary grants that strict separation of the hands awaits further study. He is a documentary smith above all, an ubu, signed and dated witness to a quiet corner of Osafune at the threshold of the Muromachi age.

His characteristic hand is a small-patterned gunome-midare whose valleys open toward the koshi. Over the body of the temper he sets ko-gunome, ko-notare, pointed and angular elements and a little chōji, the whole running small and subdued, what the published sources call kozumu, with ashi and yō entering, the temper nioi-dominant and laid with ko-nie, and fine sunagashi sweeping through. The bōshi runs in midare-komi and turns back with a pointed tendency or a small ko-maru. It is a manner of restraint rather than display, and the judges name that restraint directly: his work, they write, 'is more subdued in comparison with makers such as Morimitsu and Yasumitsu'[[c:3]], the same Bizen idea tempered on a smaller, plainer scale than the Ōei masters who came after him.

The jigane is the constant beneath that quiet edge. He forges an itame, frequently flowing and mixed with mokume and standing grain, the steel taking ji-nie and at its best a clear bō-utsuri running straight along the blade, while on his fuller late pieces a midare-utsuri stands and a darkened, chikei-like iron enters the jigane. The reflection is the old Bizen tell, here read in the smaller key of the late period. Over it the hamon keeps to its small irregular line, the nioiguchi inclined to tightness, the activity carried in ashi and yō and in sunagashi rather than in towering clusters of clove-flower, so that ji and ha together present the irregular, finely worked surface the sources hold typical of the Kozori group.

His record divides into more than one register. Most of his signed blades are tachi of the ko-sori type, but a smaller body of work abandons the midare for a suguha-toned temper carrying ko-gunome and a kataochi-like manner, the bōshi finishing in hakikake with a yakitsume. This quieter register is seen on his small hira-zukuri tantō, which often add devotional carving of bonji and a sankozuke-ken, and on a rare ken, of which the published sources observe that 'examples of ken are few in any period'[[c:4]] and call it 'a notably rare piece as a ken by Moromitsu'[[c:5]]. On his finest late tachi the manner instead widens: the midare valleys open further and tobiyaki and muneyaki appear, features the judges read as 'already showing signs that foreshadow the style of Ōei-Bizen'[[c:6]].

What sets Moromitsu apart is exactly this threshold position. He works in a smaller, plainer pattern than the Osafune masters of the Nanbokuchō height, and his temper is held more subdued than that of his son Morimitsu and of Yasumitsu in the next age; yet his own koshi-open gunome, his straight bō-utsuri and the opening midare of his late tachi look forward to the Ōei flowering of the school. The published commentary draws the point as connoisseurship: because his ubu, dated blades carry a signature 'sharing points in common with Bizen works of the Ōei era, this piece constitutes valuable source material for research into Bizen smiths of this period'[[c:7]]. He is, in short, the documented hinge between the Nanbokuchō Osafune mainstream and Ōei-Bizen.

For the collector Moromitsu survives chiefly as signed, dated tachi, with three of his works designated Important Cultural Property and a body of others passed at the Jūyō rank; he has no National Treasures. His provenance is real and notable: a tachi of his is held in the Imperial collection, one dated tachi passed by shogunal bestowal in Hōreki 9 to the Iwaki house, lords of Kameda Castle, and one of his superior late tachi the sources call 'a fine work among his oeuvre'[[c:8]] and record as 'a sword transmitted in the Kuroda family'[[c:9]]. His blades are held today in the Imperial collection and in long-held private and daimyō lines rather than offered openly, and only a modest number fall in the Tokubetsu Jūyō and Jūyō tiers, so a signed Moromitsu of the ko-sori type comes to light only from time to time. A privately held example is a quiet but rewarding thing for a collector to encounter, an exactly dated document of how late Osafune turned toward Ōei-Bizen.