A katana blade on a transparent stand, in a dark display case.

SLIMHANNYA, on Wikimedia Commons · CC BY-SA 4.0

Sōden-Bizen · Chōgi · hitatsura

Style, steel and works

His model is Chōgi (長義), the Osafune master of the Nanbokuchō; since 2017, also the hitatsura of a tachi that belonged to the Uesugi. He makes long, wide blades with a moderate kasane, and also blades for use.

On this page
  1. What he is after
  2. Documented works
  3. The 2023 mukansa katana (NBTHK) and its soejō
  4. The 2022 mukansa tachi (NBTHK)
  5. The 唐柏 (Karakashiwa) in hitatsura
  6. His gallery of works: whole blades, tangs and points
  7. A 2008 katana, filmed in the studio
  8. A 2010 wakizashi and a 2006 tantō, on video
  9. His Hyūga exhibition (2021)
  10. The Udo shrine exhibition (2023)
  11. Works at a dealer
  12. Blades at dealers and exhibitions
  13. What his works say
  14. The steel and the method

What he is after

  • Chōgi (長義). Hyūga city, in the record of the cultural property, writes that he submitted to the NBTHK works “南北朝時代の名工「備前長船長義」を模範とした作品” (“taking as their model the great master of the Nanbokuchō period Bizen Osafune Chōgi”). He said so himself in 2012: “相伝備前長義を目指す” (Sōden Bizen Chōgi o mezasu, “I am after the Sōden-Bizen of Chōgi”). A dealer speaks of gunome-chōji over a base of large undulations and of a jigane with a large hada.
  • From the tachi to the katana. He began with Bizen-den tachi and then moved on to the katana.
  • The hitatsura of the 唐柏 (Karakashiwa). In 2017 he made a hitatsura katana following the oshigata of the 唐柏 (Karakashiwa), a tachi by 長谷部國信 (Hasebe Kuninobu) that belonged to the Uesugi, like the Sanchōmō. With the help of an NBTHK curator he was able to hold it in his hands, and he decided “残りの刀鍛冶人生をこの皆焼刃の完成に賭けよう” (“to devote the rest of my life as a swordsmith to perfecting this hitatsura”). At the exhibition of fiscal year 2017 he exhibited as mukansa a 70.9 cm katana; according to him, it belongs to that series.
  • Kogarasu-maru (kissaki-moroha-zukuri): he says he has made more than ten.
  • Extremely long tachi. Several from 2008 to 2014 measure from 82.6 to 108.1 cm, and the 2023 ōdachi about 160 cm. His idea: the long tachi of the Nanbokuchō “長寸でも比較的バランスのよい、自在に使える重量だったに違いない” (“even though long, must have had a well-balanced, manageable weight”).
  • Muramasa. No work of his described as a Muramasa utsushi (村正写し, Muramasa-utsushi) has been found. Perhaps it was confused with Kanemitsu’s “写村正” (utsushi Muramasa).
  • Engravings. A dealer shows a horimono of Fudō Myōō on one of his blades; it is not on record whether he carves them himself.

Documented works

Measurements in centimetres. The level of each row is that of its source: HD if the NBTHK gives it; AT if he or a dealer gives it.

WorkSignatureMeasurementsHamon and notes
Katana for use, 2002—72 cm; sori 2.0; motohaba 3.2; kasane 0.8 cm; sakihaba 2.0; sakikasane 0.45Very pronounced hamaguri-ba; polish for use; described by a client on a forum (see “His blades for use”)
Tachi, 2008日向國住國正作之 (Hyūga no Kuni-jū Kunimasa kore o saku) / 平成二十年春 (Heisei nijū-nen haru)96.3 cm; sori 3.7Reconstruction of an ubu tachi of the Nanbokuchō
Tachi, 2009日向國住國正作 (Hyūga no Kuni-jū Kunimasa saku) / 平成二十一年春 (Heisei nijūichi-nen haru)82.6 cm; sori 3.0—
Tachi, 2010日州國住國正作 (Nisshū Kuni-jū Kunimasa saku)91.0 cm; sori 2.64—
Tachi, 2010日州國住國正作之 (Nisshū Kuni-jū Kunimasa kore o saku)108.1 cm; sori 4.20—
Katana, 2012日州國正 (Nisshū Kunimasa)82.2 cm; sori 2.9; motohaba 3.49; sakihaba 2.52; kasane 0.64 cm; sakikasane 0.507“Soden-Bizen style Choji”, itame (a dealer’s description)
Katana, 2013日州國正之 (Nisshū Kunimasa kore o) / 平成二十五年五月吉日 (Heisei nijūgo-nen gogatsu kichijitsu)72.8 cm; sori 1.7Gunome-chōji; Musashi-style mounting for use (a dealer’s description)
Tachi, 2014—82.8 cm; wide mihaba, ō-kissakiHomage to Chōgi; ko-itame, ji-nie, chikei (text from Tōken Bijutsu, translated by a dealer)
Katana, 2016似隕鐵國正作 (probable reading: nii intetsu Kunimasa saku)70.2 cm; sori 2.0Shōbu-zukuri, with meteoric iron
Katana, FY 2017 (mukansa)日州國正作 (Nisshū Kunimasa saku) / 平成二十九年春 (Heisei nijūkyū-nen haru)70.9 cm (71.1 cm, he says)Hitatsura in the line of the 唐柏 (Karakashiwa), as he tells it
Tachi, NBTHK 2019 (mukansa)日州國正作 (Nisshū Kunimasa saku) / 平成三十一年春 (Heisei sanjūichi-nen haru) / 應村田正樹需 (Murata Masaki no motome ni ōjite)78.6 cmCommissioned by a client, as the inscription says
Tachi, 2019–2020日州國正作 (Nisshū Kunimasa saku) / 令和2年春 (Reiwa ni-nen haru)80.0 cm; sori 2.4Second utsushi of the 唐柏 (Karakashiwa); hitatsura
Katana, 2020日州國正作 (Nisshū Kunimasa saku) / 令和2年春 (Reiwa ni-nen haru)73.7 cm; sori 1.7Late-Edo wazori; narrower blade “so that it fits a good koshirae”
Tachi, NBTHK 2022 (mukansa)日向國住景正作之 (Hyūga no Kuni-jū Kagemasa kore o saku) / 令和四年五月吉日 (Reiwa yo-nen gogatsu kichijitsu)78.8 cm—
Katana, NBTHK 2023 (mukansa)日向國住景正作之 (Hyūga no Kuni-jū Kagemasa kore o saku) / 令和五年二月日 (Reiwa go-nen nigatsu hi)71.6 cm—
Ōdachi, 2023—5 shaku 3 sun (about 160 cm), without joinsModelled on that of Makara Naotaka; “the forging of six tachi of 2 shaku 5 sun and four full months of hizukuri”, according to him
Others——A Masamune utsushi with koshirae, daishō and tantō, according to a dealer

What his works say II

He makes long, wide blades with ease (82 cm and more, motohaba of about 3.5 cm), but with a moderate kasane: 0.64 cm on the 2012 katana. For use he has also made blades of 72 cm with a 0.8 cm kasane (2002).

The steel and the method

The little that is known of his method comes from him and from a client.

AspectFact
What he saysHe speaks only of tatara tamahagane: “日本刀の美そのものである刃文、地鉄(じがね)は玉鋼に代表される和鉄、和鋼によってのみ表現されるものなのです” (“the hamon and the jigane, which are the very beauty of the Japanese sword, can only be expressed with Japanese iron and steel, of which tamahagane is the finest example”).
His own steel“自家製鉄を用いて古名刀の地鉄を求め” (“he seeks the jigane of the great old swords with steel he smelts himself”), in the profile on his 2012 DVD.
Blends by purposeA client from 2002 says that for art and competition works he blends tamahagane with his own steel or with old iron, for a jigane of antique appearance, and that for a sword for use he prefers tamahagane alone, because its quality is consistent and the blade holds up better.
Old ironFor the 2016 meteoric-iron sword he says he blended reworked Japanese iron of the early Edo period with the meteorite, and that it welded very badly.
ConstructionOn the 2002 katana for use, kōbuse and a well-hammered shinogi-ji, so that itame comes out and not masame, according to the client.
FoldsNot on record in any public source.
HardeningA dealer says he quenches with water from a spring next to the new forge.
The craft“鍛錬の失敗による疵、フクレ(空気の混入)は日常茶飯事、良い地鉄を鍛えても焼き入れ失敗ですべてがおじゃん” (“flaws from forging and air blisters are everyday fare, and even if a good jigane comes out, a failed hardening ruins everything”).
His 2017 bookChapter 3 describes how he forges; we have not read it.

Like Kanemitsu, he uses his own or recycled steel for the jigane of his art works. But, unlike him, a client says that for swords for use he prefers tamahagane alone, because it is more consistent.