History & Business

Timeline of the Tomoku Group

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Timeline of the Tomoku Group from 1940 to the 2020s,
showing the histories of Tomoku, Sweden House, and
Tohun. Key milestones include Tomoku’s origins in 1940,
the establishment of Toyo Wood Products Co., Ltd. in
1949, renaming to Tomoku Co., Ltd. in 1971, the spin-off
of the housing division and establishment of Sweden
House in 1984, and the development of the
transportation business into Tohun, renamed in 2021.

Tomoku Group Businesses

Packaging Business

Focused on supplying corrugated container and display carton products, we provide services ranging from packaging proposals to delivery.

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Housing Business

Sweden House

Guided by the Swedish philosophy of living, Sweden House creates authentic homes that harmonize with Japan’s culture and climate, offering a richer lifestyle. By putting quality first, it builds homes that retain their value as long-term assets.

Tamazen

Rooted in the local community, Tamazen has established an integrated system that covers every stage, from ground surveys to design and construction. With a strong focus on housing performance, including earthquake resistance and thermal insulation, it is committed to providing homes where families can live safely and comfortably for many years.

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Transportation and Logistics Business

Comprising six companies across Japan, the Transportation and Logistics Business provides logistics services nationwide not only for the Tomoku Group but also across a wide range of fields, including food products and daily necessities.

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