Research & Development

Skills Cultivated through Experience

NGK got its start as a manufacturer of magnetic insulators in 1919, seeking to meet the growing demand for electricity and to support modernization and advances in industrialization and lifestyles.
Since then, it's achieved sustained growth by creating successive generations of products that support industry and daily life and help resolve social challenges. The company's proactive efforts to diversify and globalize its businesses are based on proprietary technological capabilities accumulated through the manufacture of reliable, high-quality insulators.


NGK founded in Japan to produce special high-voltage insulators

With expanding use of electricity and industrialization in Japan during the latter half of the Meiji Period (1868-1912), the need for domestic production of special high-voltage insulators emerged. Before, the nation had relied on imports. With this mission in mind, inspired by an insulator made in the United States, research and development began on insulators capable of withstanding high voltages.
This marked the start of a process that would lead to the establishment of NGK, a company that would proceed to develop a succession of high-voltage, high-strength insulators to meet the growing demand for electricity generated by progress in industry and daily lives.

A piece of the insulator that sparked the foundation of NGK Insulators.

NGK Insulators Ltd. established through the spinoff of the insulator section of Nippon Toki (now NORITAKE CO., LIMITED)

Sulfuric-acid corrosion-resistant equipment for chemical industry

1950High economic growth

Japan's postwar period of rapid economic growth

During Japan's postwar period of rapid economic growth, NGK made energetic progress in diversifying and expanding its businesses. NGK began manufacturing and selling beryllium copper products in 1958. In 1962, a new Komaki Plant (in the city of Komaki, Aichi Prefecture) joined the Chita Plant (in the city of Handa, Aichi Prefecture); the latter had been completed in 1942. In 1965, NGK opened its first overseas sales company in the US.

Beryllium copper products

1970Oil shock & Bubble economic

From the oil crisis to the bubble economy

The 1973 oil crisis plunged Japan's economy into chaos. Seeking to globalize its businesses, NGK launched local production in the US in 1973 and in Belgium in 1977. In 1976, it began manufacturing and selling the HONEYCERAM series of ceramic catalyst carriers for use in purifying automotive exhaust.

HONEYCERAM ceramic catalyst carriers for use in purifying automotive exhaust

Low-level radioactive waste incineration system

Diesel particulate filters

1990Sustainability and diversity

Sustainability and diversity

NGK moves forward with full-scale development and production of eco-friendly products. In 1989, it began producing diesel particulate filters (DPFs). In 1996, it began producing ceramics for semiconductor production devices and vehicle exhaust gas NOx sensors. Commercial application of NAS batteries for power-storage use, on which research began in 1984, was achieved in 2002. In the following year, NGK became the world's first to begin mass production of NAS batteries.

Ceramics for semiconductor production devices

Vehicle exhaust gas NOx sensors

Piezoelectric microactuators for inkjet printers

C1 Home-Use Water Purifier

NAS batteries

2010For the future

Toward an even brighter future

With the rapid increase in the production of ceramics for use in automotive exhaust purification and progress in adopting NAS batteries both in Japan and around the world, NGK continues to introduce new products to meet society's needs in a wide range of spheres, including gasoline particulate filters (GPFs), wafers for use in electronic devices, subnano-ceramic membranes, and wavelength-control drying systems.

Bonded wafers

Copper-nickel-tin alloy

Inquiry about Research & Developments

Please apply with the contact form and give us your comments or questions.