The representative production areas of Traditional Japanese Kitchen Knives are Sakai (Osaka), Seki (Gifu), Tsubame/Sanjyo (Niigata), Sabae & Takefu (Echizen, Fukui), Miki (Banshu, Hyogo) and Tosa (Kochi). It is said that around 90% of the professional Japanese-style-food chefs in Japan use the knives made in Sakai.