Marusin Douki
Simple in form, made to be worth keeping.
Marusin Douki is a copper kitchenware maker based in Tsubame, Niigata. The company started in 1946 as Matashin-ya Douki Seisakusho and became Marusin Douki Co., Ltd. in 1977, continuing production at Ozeki, Tsubame. From tamagoyaki pans (Kanto, Kansai, and Nagoya types) to yukihira saucepans, bozu pots, oyako nabe, stepped pots, udon-suki pots, sansai pots, frying pans, and steak covers — a wide range of staples for working kitchens. Many items come with a tin-lined interior option, and retinning repair consultations are available through retailers. Marusin does not sell directly; products are supplied through retailers. Note that there are currently no IH-compatible models in the lineup.
Why We Love It
Start with the tamagoyaki pan shape: Kanto, Kansai, or Nagoya. The same egg mixture feels different depending on the rectangle you roll. Add a hammered yukihira saucepan for dashi, sauces, and quick simmering. For sweets, a bozu pot is a practical partner for anko or jam. Keep the FAQ and how-to pages close for handle setup, warp correction, and care, and contact your retailer if you want to discuss retinning.
PROFILE About the Company / Workshop
Marusin Douki is based in Ozeki, Tsubame City, Niigata. The business began in 1946 as Matashin-ya Douki Seisakusho, and changed its name to Marusin Douki Co., Ltd. in 1977. In 1981 it moved to the Ozeki Second Industrial Park in Tsubame, and continues manufacturing there today. Its guiding idea is simple: keep making items that may look simple, yet hold real value in the kitchen.
At the center are tamagoyaki pans and a wide set of copper pots. Tamagoyaki pans come in three types: Kanto (square), Kansai (tall rectangle), and Nagoya (wide rectangle), with sizes up to 30 cm. Many pots are offered with a tin-lined interior, and some items feature hammered textures. There are currently no IH-compatible products in the lineup.
Beyond egg pans, you will find hammered yukihira saucepans (15 to 30 cm), bozu pots (15 to 30 cm), oyako nabe in Kanto and Kansai styles, stepped pots (30 to 60 cm), udon-suki pots (27 to 39 cm), sansai pots (27 to 36 cm), frying pans, and steak covers. The size range is broad enough for home kitchens and professional use. Choosing by shape, depth, and purpose is part of the appeal.
Quality and support are treated as part of the product. Marusin maintains a documented quality management system, and it obtained the TSO certification under the Tsubame manufacturing quality management program in 2013. How-to pages explain wooden handle attachment and warp correction for tamagoyaki pans. The FAQ covers washing, storage, verdigris, and notes on tin wear and repair consultation through your retailer. Direct sales are not offered.
Tin-lined options for everyday cooking
Many items, including tamagoyaki pans and yukihira saucepans, are available with a tin-lined interior. It pairs copper heat response with a surface designed for daily use. Avoid strong heat and dry well after washing to help prevent verdigris.
Three tamagoyaki pan shapes, sizes that go wide
Kanto (square), Kansai (tall rectangle), and Nagoya (wide rectangle) give you three shapes to match your rolling style. Sizes range from 10.5 cm up to 30 cm, depending on the model. How-to guides cover handle attachment and warp correction.
From hammered yukihira to specialty pots
The lineup spans hammered yukihira saucepans, bozu pots for sweets such as anko and jam, oyako nabe, udon-suki pots, large stepped pots, frying pans, and even steak covers for splash control. It is a catalog built around clear use cases.
Support that assumes long use
Marusin does not sell directly, but it does provide practical aftercare information. When the tin layer wears thin over years of use, retinning repair consultations are available via the shop where you bought the item. The FAQ also explains cleaning and verdigris care.
PRODUCTS Featured Products & Services
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Copper Tamagoyaki Pan (Kanto / Kansai / Nagoya type)
A staple category from Marusin Douki. The three pan shapes — Kanto, Kansai, and Nagoya — change how you roll the eggs. Replacement wooden handles also circulate, so you can nurture the tool over time.
Copper Yukihira Saucepan (hammered)
For dashi, blanching, and quick simmering — a staple for "Japanese kitchen" basics. Available in multiple sizes, making it easy to choose by use.
Copper Oyako Nabe (upright / horizontal handle, etc.)
For finishing oyakodon and katsudon. With handle direction (upright / horizontal) and size differences — choose by stove environment and dominant-hand preference. (Not IH-compatible.)
Tabletop Pots (udon-suki / stepped pots / sansai pots, etc.)
Tabletop pots loved in cold seasons. From dining-table-oriented udon-suki pots to larger stepped pots and sansai pots — roles divide clearly by size. Choose the right diameter for your family size.