Koa 

KOA Corporation develops, manufactures, and sells electronic components in Japan and internationally. The company offers thermistors, thermal sensors, inductors, fuses, varistors, LTCC substrates, hybrid IC, and check terminals, as well as SMD resistors, low resistance/current sense shunt, and leaded resistors. Its products are used in automotive, industrial equipment, ecology and energy saving, telecommunication, AV/home appliance, power supply unit, space/satellite, and medical equipment applications. The company was formerly known as Koa Denko Co., Ltd. and changed its name to KOA Corporation in April 1985. The company was founded in 1940 and is headquartered in Nagano, Japan.