Considered to have created some of the sharpest swords ever known, he is one of a handful of smiths rated at "Sai-jo O-wazamono" (grandmaster of great sharpness) with famous swords named "Kabutowari" (Helmet Cutter), "Ishikiri" (Stone Cutter), and "Teppokiri" (Gun Cutter) as relayed in Fujishiro's writings.