 KDK

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) now Panasonic Ecology Systems Co. Ltd., 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. KDK was registered as a trademark in 1912 but originated in 1909 as Nippon Electric Industry Co. Ltd.

KDK primarily manufactures electric fans, although the company also manufactures ceiling fans, ventilating fans, range hoods, air doors (air curtains), hand dryers, dehumidifiers, and subterranean air blowers, under the Panasonic brand.