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桐生 Kiryu
Seen in person brand
Quick answer
MakerKiryu Kogyo (Tetsuhiro)RegionSanjo, Niigata (Tsubame-Sanjo)
Marks哲弘 / 桐生SteelsAogami Super, Aogami #2, VG10, SG2 / R2
Knife types madeGyuto, Petty, Santoku, NakiriMain useWestern-style chef's knife: meat, large vegetables, rocking cuts.
Recommended whetstone1000 → 3000 (a diamond plate helps) JIS · how to sharpenMaintenanceRinse and wipe dry immediately after each use — never leave it wet or in the sink.
What this mark means
桐生 reads Kiryu. It is a brand name used by Kiryu Kogyo (Tetsuhiro) (桐生工業株式会社「哲弘」), Sanjo, Niigata — the Tsubame-Sanjo region. Company name on the showcase plate.
Other marks from the same maker
- 哲弘 Tetsuhiro
About the maker
Brand 哲弘 (Tetsuhiro). Known for 青紙スーパー割込 — Aogami Super core inside soft stainless, tempered to HRC 64–65 — in Western-handle shapes. Also VG10, VG10 damascus, SPG2 powder and Aogami #2 lines. The showcase poster we photographed is their Aogami Super line-up.
Products carrying this mark
- 哲弘 青紙スーパー割込 — 牛刀 240 / 210 / 175
- 哲弘 青紙スーパー割込 — 万能 170
- 哲弘 青紙スーパー割込 — 菜切 160
- 哲弘 青紙スーパー割込 — ペティ 150 / 120