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龍治 Ryuji
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MakerShimomura KogyoRegionTsubame, Niigata (Tsubame-Sanjo)
Marks下村 / ヴェルダン / 村斗 / 雲竜 / 龍治SteelsMolybdenum-vanadium stainless, VG10
Knife types madeSantoku, Gyuto, Petty, NakiriMain useAll-round home knife: vegetables, fish, meat. The first knife to buy.
Recommended whetstone1000 → 3000 JIS · how to sharpenMaintenanceWipe dry after use. Dishwasher still not recommended — the heat and detergent dull the edge and loosen handles.
What this mark means
龍治 reads Ryuji. It is a brand name used by Shimomura Kogyo (下村工業株式会社), Tsubame, Niigata — the Tsubame-Sanjo region.
Other marks from the same maker
About the maker
Household brands Verdun (ヴェルダン, one-piece stainless handle), Murato (村斗, hand-finished), Ryuji (龍治, water-ground, HACCP) and Un-ryu (雲竜, VG10 cobalt damascus). Company brochure collected on site (not reproduced).
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