堺 Sakai
Sakai, near Osaka, is the heartland of the traditional Japanese knife. Its smiths trace their craft back centuries — from the great burial-mound (kofun) era of ironwork to the 16th-century tobacco-knife trade — and today Sakai equips a large share of Japan's professional kitchens.
What sets Sakai apart is bungyo — a strict division of labour. The blacksmith forges the blade, a separate sharpener (togishi) grinds and sets the edge, and a third artisan fits the handle. Each master does one thing, for a lifetime. It's slow and specialised, and it's why Sakai's single-bevel yanagiba and deba are the benchmark for professional Japanese knives.
越前 Echizen
In the Takefu area of Fukui, smiths have forged blades for more than seven centuries — first sickles and farm tools, later kitchen knives. Echizen Uchihamono was the first cutlery craft in Japan to be recognised as a national traditional industry.
Echizen knives are still fire-forged and finished largely by hand, often left with a rugged black kurouchi (forge) finish and hammered tsuchime facets that help food release. Fittingly, Takefu is also home to Takefu Special Steel — the maker of VG10 — so the region sits exactly where old craft meets modern steel.
関 Seki
Seki, in Gifu, has forged steel since the Kamakura period, and by the Muromachi era it was Japan's foremost swordmaking centre — the legendary smith line Seki no Magoroku still lends its name to blades today.
When the age of the sword ended, Seki turned that mastery of steel to cutlery. It is now one of the world's great knife cities, home to both traditional hand-forgers and precise modern manufacturers — everything from artisan gyuto to knives shipped around the globe.
土佐 Tosa
In Kochi — old Tosa — smiths work by jiyu-tanzo, or 'free forging': shaping each blade to its job without fixed patterns or moulds. The tradition grew from the region's forestry and farming, where a knife had to be tough above all.
Tosa Uchihamono are the most rustic and utilitarian of the four traditions — robust hand-forged blades with a rugged kurouchi finish, made to work hard rather than to be admired. Character over polish.