YAKUMO JAPAN

Makers · 作家

Who made your pot?

Turn a Japanese pot over and there is usually a mark. It can be one of the most useful clues on the vessel, and the hardest to read from outside Japan. These pages set out who the makers were, what their documented and observed marks may establish, and what remains uncertain.

典拠 Method

Documented, not guessed

Some English-language information about Japanese bonsai-pot makers lacks traceable support. These profiles distinguish documented facts, observed examples and unresolved points, and where a reading is not confirmed we say so.

Where a claim cannot be traced, we leave it out and say so. That is why some entries are shorter than they could be.

Tokoname · 常滑

Koyo

鴻陽

b. 1944
Left tile-making for pots on a nurseryman’s advice. A glaze specialist whose green recalls Tofukuji’s.
5 documented marks

Juko

樹晃

Koyo Toen
Koyo’s son. Agriculture postgraduate turned potter, working the family green glaze.
1 documented mark

Shuho

秀峰 / 義村陶園

est. 1923
Glazed ware, from shohin pots to vessels beyond ninety centimetres. Green-glazed work was singled out in the 2006 account.
4 documented marks

Shibakatsu

柴勝

b. 1943
Small pots, over five hundred variations. Two documented impressions are associated with earlier production and later handmade work; distinguishing them requires the pot in hand.
2 documented marks

Hattori

服部

b. 1951
A ceramics graduate of Koblenz. Glazed small pots made with moulds by a maker who forms, glazes and fires his own work.
1 documented mark

Bigei

美芸

b. 1939
Shaded shudei small pots. The recorded dates describe his career, not the period the mark was used.
1 documented mark

Zengo

銭号

—
Recorded in 2006 as among Tokoname’s longest-running bonsai-pot kilns — and its mark is a copied Chinese one.
1 documented mark

Ikko

一弘 / 壱興 / 壹興

b. 1956
Tokoname’s glaze man. Three written forms documented here belong to the same maker; two are partnership marks.
3 documented marks

Juodo Shosen

十王堂松泉 / 山秋

1902–1995
The first generation of Yamaaki. No impression of his own mark is documented.
3 documented marks

Yamaaki

山秋 / 松泉

from 1920
Two lines under one name — and the mark tells you which one you are holding.
4 documented marks

Eimei

英明 / 清水英明

b. 1960
One glaze, two colours — the side that faces the flame and the side that does not.
1 documented mark

Gyozan Nakano

中野行山

b. 1940
Some of the four documented marks distinguish moulded from handmade work.
4 documented marks

Reiho

黎鳳

b. 1952
Many of the Tokoname makers presented here worked in unglazed clay. He went the other way — after the Chinese glazes.
2 documented marks

Senshu

仙舟 / 小澤数雄

—
Shūzan’s only successor — using Shūzan’s own clay and firing. The mark decides.
1 documented mark

Yamafusa

山房 / 鯉江一房

—
A kiln, not a person. Its marks give you the grade on an old pot and the era on a new one.
4 documented marks

Yozan

耀山 / 清水正和

b. 1922
A name that outlasted the hand behind it. From the Shōwa 50s, father and son worked together under the Yōzan name; the mark alone does not identify the hand.
2 documented marks

In progress

Documented marks, with new examples added as they are confirmed.

These entries are the beginning of a longer reference.

If you have a pot with a mark you cannot read, we will tell you what it says.