Schools
Each school with its origin, style and history, its branches and related schools and its smiths. The five traditions come first; then the provincial schools, the shintō centres and the schools and groups of smiths.
The five traditions (gokaden)
- Bizen-den 備前伝 The Bizen tradition: the largest sword production in Japan, from twelfth-century Ko-Bizen to the Osafune of the age of war. 33 smiths
- Mino-den 美濃伝 The tradition of Seki, in Mino: the latest of the five and the most influential on the sword of the Edo period. 31 smiths
- Sōshū-den 相州伝 The Kamakura tradition of Sagami: the most nie-rich steel of the five and the school of Masamune. 22 smiths
- Yamashiro-den 山城伝 The tradition of the capital: elegant Kyoto blades, from Munechika’s Sanjō to the Awataguchi and Rai schools. 8 smiths
- Yamato-den 大和伝 The Nara tradition: the swords of the great temples, with masame and suguha as their marks. 3 smiths
Provincial schools (wakimono)
- Echigo 越後の刀工 (Echigo no tōkō) The smiths of Echigo: a northern province with few old workshops and one great twentieth-century name, Amata Akitsugu. 1 smith
- Etchū 越中の刀工 (Etchū no tōkō) The smiths of Etchū: Norishige and Gō Yoshihiro, two of the great names of the Sagami style, and the Uda school. 1 smith
- Higo 肥後の刀工 (Higo no tōkō) The smiths of Higo: the Enju school, heir to Rai, and the sturdy blades of Dōtanuki, plus the smiths of modern Kumamoto. 2 smiths
- Ko-Hōki 伯耆の刀工 (Hōki no tōkō) The smiths of Hōki: the iron-sand country of Chūgoku, where Yasutsuna forged some of the oldest surviving tachi. 4 smiths
- Kaga 加賀の刀工 (Kaga no tōkō) The smiths of Kaga: from Fujishima and Kiyomitsu in the Muromachi period to Kanewaka and the smiths of the Maeda fief. 10 smiths
- Kishū 紀州の刀工 (Kishū no tōkō) The smiths of Kii: from the medieval workshops of the province to Nanki Shigekuni, smith of the Tokugawa branch of Wakayama. 1 smith
- Satsuma-tō 薩摩刀 The swords of southern Kyūshū: from the old Naminohira blades to the violent nie of Satsuma shinshintō. 6 smiths
- Tosa 土佐の刀工 (Tosa no tōkō) The smiths of Tosa: a province that brought in its best smiths from outside, from Mutsu no Kami Yoshiyuki to Sa Yukihide. 3 smiths
Shintō and shinshintō centres
- Aizu 会津の刀工 (Aizu no tōkō) The smiths of Aizu: the Kanesada house, which came from Seki, and that of Miyoshi Nagamichi, serving the domain until the Boshin war. 4 smiths
- Echizen 越前の刀工 (Echizen no tōkō) The smiths of Fukui: Yasutsugu’s Shimosaka school and the families who came from Seki, the so-called Echizen Seki. 8 smiths
- Edo shintō 江戸新刀 The swords of the shogun’s capital: the practical, keen shintō of Kotetsu, Yasusada and the Edo schools. 6 smiths
- Hizen-tō 肥前刀 The swords of Saga: the house of Tadayoshi and its branches, smiths to the Nabeshima throughout the Edo period. 16 smiths
- Ōsaka shintō 大坂新刀 The swords of the merchants’ city: the finest jigane and the showiest hamon of the Edo period, from Sukehiro and Shinkai. 16 smiths
- Sendai Kunikane 仙台国包一門 (Sendai Kunikane ichimon) The house of Kunikane in Sendai: smiths to the Date who kept the masame of the Hōshō school alive throughout the Edo period. 1 smith
- Shinano 信濃の刀工 (Shinano no tōkō) The smiths of Shinano: the Yamaura brothers in the Bakumatsu and, in the twentieth century, the Miyairi family of Sakaki. 5 smiths
Schools and groups of smiths
- Aoe 青江派 (Aoe-ha) The Aoe school, in Bitchū: dark steel with sumigane and suguha, for three centuries across the river from Bizen. 4 smiths
- Awataguchi 粟田口派 (Awataguchi-ha) The Awataguchi school, in Kyoto: the most beautiful jigane of the Kamakura period and the tantō of Tōshirō Yoshimitsu. 6 smiths
- Dōtanuki 同田貫 The unadorned swords of Higo: wide, thick and heavy, forged for Katō Kiyomasa at the end of the sixteenth century. 1 smith
- Enju 延寿派 (Enju-ha) The Higo school born of Rai: the soft suguha of Kyoto carried to Kikuchi, in the service of the Kikuchi clan.
- Fukuoka Ichimonji 福岡一文字派 (Fukuoka Ichimonji-ha) The height of the Ichimonji: wide, magnificent tachi of the mid-Kamakura period, with the richest chōji and the liveliest midare-utsuri of Bizen. 6 smiths
- Gassan 月山派 (Gassan-ha) The school of Mount Gassan: the wavy ayasugi-hada, from medieval Dewa to the Ōsaka house that keeps it alive today. 5 smiths
- Hokke 法華派 (Hokke-ha) The Bingo school named after its smiths’ faith: sober suguha blades, close to Mihara. 1 smith
- Horii 堀井 The Horii family: from Taneyoshi, a Bakumatsu smith of Ōmi, to Toshihide and the Zuisen forge in Muroran, with a stint in the workshop of Takase Ukō's library in Tokyo. 5 smiths
- Horikawa 堀川派 (Horikawa-ha) Horikawa Kunihiro’s school in Kyoto: the beginning of shintō and the training ground of its best smiths. 7 smiths
- Hōshō 保昌派 (Hōshō-ha) The only Yamato school with a full masame: a straight, orderly grain from end to end, with a nie suguha. 1 smith
- Ichimonji 一文字派 (Ichimonji-ha) The smiths who signed with a single stroke, «one»: the most lavish chōji of Bizen, from Norimune to the Yoshioka of the Nanbokuchō period. 3 smiths
- Ikkansai A line of Tokyo smiths whose first masters signed Ikkansai; its central figure, Kasama Shigetsugu, taught at Kurihara Akihide's centre, and the Yoshihara descend from his school. 3 smiths
- Ishidō 石堂派 (Ishidō-ha) The school that set out to revive Ichimonji in the Edo period: a nioi chōji with utsuri, spread across Edo, Kii, Ōsaka and Chikuzen. 8 smiths
- Kanewaka 加州兼若 (Kashū Kanewaka) The Tsujimura family of Kanazawa: smiths of Mino origin who settled in Kaga in the early 17th century and signed Kanewaka throughout the Edo period. 4 smiths
- Mihara 三原派 (Mihara-ha) The Bingo school of Yamato roots: sober blades with masame and suguha, from the Ko-Mihara of the Kamakura period to the Mihara of the Muromachi.
- Miike 三池派 (Miike-ha) One of the oldest schools of Kyūshū: Mitsuyo, maker of the Ōdenta, one of the tenka goken. 1 smith
- Mishina 三品派 (Mishina-ha) The other great school of Kyoto shintō: the Mishina family, from Seki, with Kinmichi, Yoshimichi and Masatoshi. 10 smiths
- Mizuta 水田派 (Mizuta-ha) The Mizuta school, in Bitchū: the name Kunishige, borne by dozens of smiths, with sturdy working blades. 2 smiths
- Naminohira 波平派 (Naminohira-ha) One of the longest-lived schools in Japan: the smiths of Taniyama, in Satsuma, from the Heian period to Meiji. 2 smiths
- Naoe Shizu 直江志津 Kaneuji’s followers at Naoe: the Sagami style turned Mino in the Nanbokuchō period, with notare, gunome and deep nie. 1 smith
- Nihontō Tanren Denshūjo Kurihara Akihide's swordsmith training centre in Tokyo (1933-1941); Miyairi Akihira and Amata Akitsugu, among others, came out of it. 4 smiths
- Niō 二王派 (Niō-ha) The Suō school of Yamato roots: Kiyotsuna and his successors, from the Kamakura period to the Chōshū domain in Edo times. 3 smiths
- Osafune 長船派 (Osafune-ha) The largest group of smiths in Japanese history: from Mitsutada and Nagamitsu to the Sukesada and Kiyomitsu of the Sengoku period. 28 smiths
- Rai 来派 (Rai-ha) The Kyoto school that brought suguha to its classic form: Kuniyuki, Kunitoshi, Kunimitsu and Kunitsugu. 6 smiths
- Samonji 左文字派 (Samonji-ha) The Chikuzen school that signed «Sa»: the Sagami style carried to Kyūshū by Ō-Sa and his pupils. 7 smiths
- Sengo 千子派 (Sengo-ha) Muramasa’s school in Kuwana: practical, keen blades, with a hamon identical on both sides. 1 smith
- Senjuin 千手院派 (Senjuin-ha) The oldest of the five Yamato schools, at the foot of Mount Wakakusa, beside the Tōdai-ji.
- Shikkake 尻懸派 (Shikkake-ha) One of the five Yamato schools, founded by Norihiro: suguha with small gunome and a jigane with much nagare. 1 smith
- Shimada 島田派 (Shimada-ha) The Shimada school, in Suruga: a Sagami style on the Tōkaidō, with the Yoshisuke and Sukemune for generations. 1 smith
- Shimosaka 下坂派 (Shimosaka-ha) The school of Shimosaka village, in Ōmi: from spear makers to the house of Yasutsugu, smith to the Tokugawa. 9 smiths
- Sue-Aoe 末青江 The last stage of the Aoe school: large Nanbokuchō blades, with more nie and a suguha that opens into gunome. 2 smiths
- Taima 当麻派 (Taima-ha) One of the five Yamato schools, linked to the Taima-dera temple: blades of intense nie that come close to the Sagami style.
- Takada 高田派 (Takada-ha) The Bungo school, in Kyūshū: practical blades in quantity for five centuries, in styles ranging from Sagami to Bizen and Mino. 10 smiths
- Tegai 手掻派 (Tegai-ha) The largest of the five Yamato schools: the smiths of the Tegai gate of the Tōdai-ji, with Kanenaga as founder. 5 smiths
- Uda 宇多派 (Uda-ha) The school that took the Yamato style to Etchū: Uda Kunimitsu and his line, active from the Nanbokuchō period to the end of Edo. 3 smiths
- Ukai 鵜飼派 (Ukai-ha) A small Bizen school, from the late Kamakura to the Nanbokuchō period, whose smiths signed with the cloud character; its blades resemble those of Kyoto and Aoe more than those of Osafune. 2 smiths
- Nihontō Tanrenkai (Yasukuni) 日本刀鍛錬会 (Nihontō Tanrenkai) The forge of the Yasukuni shrine, in Tokyo (1933-1945): a foundation tied to the Army that forged some 8,100 blades with tamahagane and gave its smiths the character «yasu». 4 smiths