Sells the Kakisho Koma assembly tea room (from ¥650,000 for 3 mats), finished inside with its patented persimmon-tannin technique.
Tap 'Visit official site' to go to this company's own website. Please send inquiries and quote requests directly through their channels.
Source: taiyousya.com
Taiyosha Tosou is a painting company founded in 1964 in Tomioka, Gunma. A small team of craftsmen handles general building work such as exterior walls and roofs, and the firm has long joined the local chamber of commerce youth group in painting murals around the town.
Its core technique is a wood-surface finish using kakishibu (persimmon tannin), patented in 2004 (No. 3557407) and selected the same year for Gunma Prefecture's "one company, one technology" program. It gives new wood the calm tone of aged timber without harmful chemicals; the company says it sources its kakishibu from Kyoto.
Using this finish on the interior, the firm developed the Kakisho Koma, a traditional-style assemble-type tea room for the garden. It comes in 3-mat, 4.5-mat and 6-mat sizes, goes together with a cordless driver and wooden mallet, and needs a plot of at least 2.5 m x 4 m. The price covers the kit, tatami and fittings; foundation, delivery and assembly are quoted separately. It also works as a study or annex, suiting anyone who wants a small tea room in the garden without a full build.
A traditional-style assembly tea room for the garden; the official site shows each stage of assembly—foundation, floor, posts, beams, outer and inner walls. The interior uses the firm's patented persimmon-tannin finish.
View on official site ↗
The first mural in the local junior chamber's "Town-building murals for the 21st century" project.
View on official site ↗Photos: Taiyosha official website
Kakishibu is the clear liquid from fermented, aged juice pressed from unripe small persimmons; its tannin is said to resist water, rot and insects. The firm says its method is rot-resistant and antibacterial and can be applied to any wood—posts, beams, ceiling boards, wall panels.
Indoors the colour and sheen deepen over time with no recoating needed (based on indoor results). Work is done at the firm's workshop or on site; prices are quoted by timber and area.
Besides hosting tea, the official site lists uses such as a child's study, a room to unwind from work, a special room for companies or public bodies, an annex or VIP room for a restaurant, a personal hideaway, or a zazen hall.
Q. Is there a charge for estimates? / A. Visits, estimates and inspections are free, and estimate-only requests are welcome.
Q. Service area? / A. About an hour's drive around Tomioka, Gunma; enquiries from outside are welcome.
Q. How long does work take? / A. About 1–2 weeks for a typical two-storey house of 30–40 tsubo.
Photos: Taiyosha official website
| Company | Taiyosha Tosou Co., Ltd. |
|---|---|
| Address | 845 Takumi, Tomioka, Gunma |
| Founded | Founded May 1964; incorporated May 1988 |
| Representative | 佐藤篤 (Sato) |
| Business | Building painting, murals, persimmon-tannin wood finishing, Kakisho Koma assemble-type tea room |
| Licenses | Construction license Gunma Governor No. 9386; Patent No. 3557407 (natural wood-surface finishing) |
| Phone | +81-274-63-2711 |
| Capital | ¥10 million |
| Employees | 4 |
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