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Craftsman

日野浦司

Tsukasa Hinoura with James at the Sanjo workshop, April 2016.
Tsukasa Hinoura with James at the Sanjo workshop, April 2016.

TsukasaHinoura

BlacksmithBusiness owner Sanjo, Niigata, Japan
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The story

Tsukasa Hinoura (日野浦司) is the third generation at Hinoura Hamono Koubou in Sanjo, and the family keeps an unusually exact record of how it got there. The first generation set up as a blacksmith in 1905, in what was then the village of Ajikata. The second went independent from the main house in 1957. The workshop took its present name in 1991, when it moved.

Two marks come off his anvil. Ajikataya (味方屋) is the family trade name, carried down from that village. Tsukasa (司) is his own.

What he is known for is a damascus pattern he calls river-jump. His own description of it is better than anything we would write: it resembles water flowing, a rippled river surface, and each one is the only one like it in the world. He works two others, Flowing Clouds and a cherry pattern. Retailer accounts add the part that explains the colour, which is that he layers copper and brass into the cladding steel to get three tones out of it, and they credit him as the only smith to have taken the top knife award at the Seki Custom Knife Show two years running, both times for damascus.

A visitor to the forge came away with the detail that makes sense of the rest. He does not buy pre-laminated steel. He forges his own damascus, and his interest sits in metallurgy and hardening rather than in pattern for its own sake. The pattern is what falls out of caring about what the steel is doing.

The workshop's own timeline records the certifications: a regional meister designation in 2006, the year his father retired, and in 2012 both the traditional craftsman title, 伝統工芸士, and the Niigata prefectural Master Craftsman award.

There is one number we are not going to give you. Sources put the year he entered the trade at either 1975 or 1978. We asked James, who deals with him, and he said plainly that he does not know. So the year stays out rather than getting picked because two sources out of three said it.

His son Mutsumi went independent in 2025 under his own name, Tsuchinone. Some listings read that as Ajikataya knives being finished. They are not. The Ajikataya and Tsukasa lines stay with his father.

Gallery

In photographs

Tsukasa Hinoura standing beside the power hammer in his Sanjo workshop, April 2016
01Tsukasa Hinoura standing beside the power hammer in his Sanjo workshop, April 2016
Tsukasa Hinoura sharpening a blade at his water station with whetstone rack, Sanjo, April 2016
02Tsukasa Hinoura sharpening a blade at his water station with whetstone rack, Sanjo, April 2016
Tsukasa Hinoura gesturing toward his rack of sharpening stones, Sanjo, April 2016
03Tsukasa Hinoura gesturing toward his rack of sharpening stones, Sanjo, April 2016
A finished damascus knife with an unfinished blade blank on a workbench, Hinoura workshop, April 2016
04A finished damascus knife with an unfinished blade blank on a workbench, Hinoura workshop, April 2016
A dark tool handle resting on a workbench in Tsukasa Hinoura's Sanjo workshop, April 2016
05A dark tool handle resting on a workbench in Tsukasa Hinoura's Sanjo workshop, April 2016
Tsukasa Hinoura with James Zhang in the Hinoura workshop, Sanjo, April 2016
06Tsukasa Hinoura with James Zhang in the Hinoura workshop, Sanjo, April 2016
Lineage

The relationship map 職人系譜

Masters, family, and the brands between them. Every line is a verified fact from our research. Tap a node to light up its connections and read its story.

person brand workshop ━ family ┅ trained under ━ forges / sharpens
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Stories

Japan trip, July 2019, Day 4: from Sanjo to Tokyo Japan trip, July 2019, Day 4: from Sanjo to TokyoDay-4 travelogue: Tsukasa Hinoura's Sanjo workshop, his new house showroom, the Shinkansen to Tokyo, and Masamoto Sohonten + local Sukeroku sushi.Read the story

Frequently asked questions

Who is Tsukasa Hinoura?

Tsukasa Hinoura (日野浦司) is a blacksmith in Sanjo, Niigata, Japan, and the third generation (3代目) to head the family workshop, Hinoura Hamono Koubou (日野浦刃物工房).

He forges under his own line, Tsukasa, and under the family's inherited trade name, Ajikataya (味方屋).

What is Tsukasa Hinoura known for?

Tsukasa Hinoura is known for his signature 'river-jump' (Ryusuitobimon) damascus, a pattern that resembles flowing water or a rippled river surface, with no two blades the same. He also works in the Unryu (Flowing Clouds) and Kamimizo Sakura damascus patterns.

His original specialty was outdoor and hunting hatchets.

Where is Tsukasa Hinoura based?

Tsukasa Hinoura is based in Sanjo, Niigata, Japan, where he heads the workshop Hinoura Hamono Koubou (日野浦刃物工房). The family forge has stood in the Sanjo area since the second generation established it there, and it took its present name in 1991.

How old is the Hinoura workshop?

The forge traces back to 1905, when the first generation of the family founded it in what was then the village of old Ajikata (旧味方村). The second generation went independent from the main house in 1957 and established the forge (日野浦刃物製作所) in Sanjo, which was renamed Hinoura Hamono Koubou (日野浦刃物工房) in 1991.

The family trade name, Ajikataya (味方屋), has been used since 1982 and takes its name from that founding village.

Who makes Ajikataya and Tsukasa knives now?

Both the Ajikataya (味方屋) and Tsukasa lines remain with Tsukasa Hinoura. Mutsumi went independent in 2025 under a separate brand, Tsuchinone.

We trust this information is correct at the time of writing, but it is not an official document and details may change without notice. If you spot an error, tell us and we'll fix it.