NGK Insulators, Ltd. was established in 1919 being the only comprehensive manufacturer of ceramic filters in Japan, offering a broad lineup. NGK first began the manufacturing and sales of MEGCON machines in the 1980s and has continued producing it until today. NGK products and technologies create new values and contribute to the quality of life. We have constantly sought to develop and supply products that can contribute to a steadfast social foundation and protects the natural environment.