The Nipro Hachiko Dome, also called the Ōdate Jukai Dome, is a large wooden stadium in Ōdate, Akita. Toyo Ito designed it, Takenaka Corporation built it, and Akita Prefecture owns it. It was completed and opened in June 1997. Nipro bought the naming rights in 2017. The article names no style.
The roof framework uses about 25,000 Akita cypress trees aged around 60 years. A double Teflon-coated fiberglass membrane covers it, letting in enough daylight that no lights are needed by day. Warm air circulates between the membranes to shed the 2 to 3 meters of snow the region gets.
Removable grandstands allow other uses. Capacity is 5,040 for baseball and 15,000 for concerts.
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