. "Kawakita Denki Kigyosha (Japanese for \"Kawakita Electric Company\"; commonly known as KDK), is the brand name used by Matsushita Ecology Systems Co., Ltd., a separate company of the Panasonic Corporation (formerly the Matsushita Electric Industrial Group), to manufacture the group's ventilating products. Before becoming part of Matsushita Electric, KDK was a separate company not affiliated with Matsushita Electric Industrial Co. Ltd."@en . . "Matsushita Ecology Systems Co., Ltd."@en . "1909Z"^^ . . . . . . . . . . . . .