DKK Co., Ltd. engages in the design, manufacture and sale of telecommunications facilities and equipment. It operates through the following segments: Telecommunication, Radio Frequency-Related and Others. The Telecommunication segment develops, designs, manufactures and installs antennas, mobile communications towers, peripheral devices, steel structures and solar power panels. The Radio Frequency-Related segment includes induction heating equipment, radio frequency-applied equipment and vacuum furnaces. The Others segment manages the equipment leasing services and electric power sales. The company was founded on June 1, 1950 and is headquartered in Tokyo, Japan.