Okaya Electric Industries Co., Ltd. manufactures and sells electrical components and equipment in Japan and internationally, together with its subsidiaries. Its product lineup includes noise suppression products such as capacitors, spark killers, high pulse capacitors, noise filters, and common mode choke coils; surge protective devices (SPD) in module, PCB-mounted, and SMD types; LED display devices and lighting source products; and sensor products. These products are used in air conditioners, refrigerators, cooking appliances, audiovisual and communication equipment, medical equipment, industrial equipment, and urban infrastructure. Formerly known as Okaya Radio Co., Ltd., the company changed its name to Okaya Electric Industries Co., Ltd. in 1967, was incorporated in 1939, and is headquartered in Setagaya, Japan.