This chapter is a detailed part of Chapter 24. Please read Chapter 24|Sengoku Period Sword(戦国時代） before start reading this chapter.
During the Sengoku Period, Mino–Den group and Bizen Osafune group was the main sword makers. Because of almost 100 years of the Warring States period, all the Daimyo needed a large number of swords. If a supplier is closer, that is even better. Mino area could be reached from many Sengoku Daimyo conveniently because of its location. Mino swords smiths existed since the Heian period and the Kamakura period. Mino became the busiest sword making area around the Muromachi and the Sengoku period. Shizu group and Tegai group from Yamato area, and many swordsmiths from Yamashiro (Kyoto) moved to Mino area. Mino-Den, Shizu Kaneuji (志津兼氏) from the Kamakura period is one of the Masamune Juttetsu (正宗十哲)*. Their swords are very practical swords for the Warring Stated period.
*Masamune Juttetsu (正宗十哲) —–strictly meaning, top 10 Masamune students but often it means top swordsmiths.
Three examples of Sengoku Period sword
Every sword is different. Even the sword made by the same swordsmith is different. Please refer to the basic common characteristic of the sword made during the Sengoku period, 24 Sengoku Period Sword.
Bizen Osafune Yosozaemon Sukesada (備前国住長船与三左衛門尉祐定) from Sano Museum Catalog
Common Sengoku Period characteristic that shows on the sword above.
Hamon is Kani-no-Tsume (crab claw shape). This type of hamon never appeared Heian, Kamakura, Nanbokucho period. This type of Hamon is a deciding point of the Sengoku time. Marudome-Hi (round end groove) often appear on Bizen Den sword of Sengoku period. Wide tempered area. Midare-komi Boshi, with turn back deep and stop sharp. Hamon is Nioi base. Bizen does Nioi mostly with some exception.
Izuminokami Fujiwara Kanesada (和泉守藤原兼定) from Sano Museum Catalog
Common Sengoku Period characteristic that shows on the sword above
The last letter of Kanji of this swordsmith is not ”定”, instead “宀” and “之”. But my computer does not have one. To distinguish from the other Kanesada (兼定), we call “宀 “ and “之 “, Nosada (のさだ) Izuminokami Fujiwara Kanesada is the top sword smith of Mino-Den at this time. The shape of the sword is the typical Sengoku sword. Shallow curvature, Chu-gissaki (medium Kissaki), pointed gunome Hamon. The width of the Hamon is wide and narrow. Often, Nosada and other Mino-Den have woodgrain on Ji-Hada with Masame mixed. Nioi base with coarse Nie mixed.
Bizen Osafune NorimitsTu (備前長船法光) from Sano Museum Catalog
The common Sengoku period characteristic that shows on the sword above
Shallow curvature. This style of sword including the shallow curvature (the degree in which the sword turns), the width of the blade and the sturdy look is very typical of Sengoku period. Marudome-Hi. Pointed Hamon called Togari-Ba ( 尖り刃). Nioi base mixed with Nie. Slight Masame and wood grain on Ji-Hada.