Koa Corp. engages in the development, manufacture, and sale of electronic components. It operates through the following geographical segments: Japan, Asia, America, and Europe. Its products include resistors, thermistors, thermal sensors, inductors, fuses, varistors, LTCC substrates, and others. The company was founded by Kazuto Mukaiyama on March 10, 1940 and is headquartered in Nagano, Japan.