Kosaka (, Kosaka-machi) is a town located in Kazuno District, Akita, Japan. As of 2003, the town has an estimated population of 6,795and a density of 38.17persons perSquare kilometers. The total area is 178.00Square kilometers. Kosaka currently has the oldest operating, traditional Kabuki theatre. The Korakukan Theatre was made of all wood in 1910. This theatre is stylized as a 17th century American building meets 15th century Japanese architecture. The theatre can currently seat a few hundred with only traditional Japanese seating inside (everyone sits on a pillow in the floor). This theatre unfortunately is not handicapped accessible and is a traditional Japanese venue which requires one to take off his/her shoes upon entering. There are tours available of the theatre and there is a 'meet and greet' with the cast after the show. The kirakukan theatre was designated as an Important Cultural Property in 2002. Sony shortwave radio sets, TV tuners and AC adapters are developed and manufactured by Towada Audio Corporation in Kosaka.