NGK Spark Plug Co., Ltd., together with its subsidiaries, manufactures and sells spark plugs and related products for internal-combustion engines; and technical ceramics and applicable products in Japan. The company offers spark plugs, including plugs for aftermarket and original equipment, igniter plugs, and resister cables and covers; glow plugs comprising ceramic and metal type glow plugs, and glow controllers; and oxygen, NOx, temperature, and knock sensors. It also provides semiconductor components, such as IC packages for electronics and smart devices, as well as manufacturing parts for semiconductors; and medical products. In addition, the company offers fine ceramics, including wear-resistant parts, ultrasonic transducers and sensors, products for semiconductor manufacturing equipment, electric equipment products, and other ceramic products. Further, it provides cutting tools comprising ceramic, cermet, micro grain carbide, coated carbide, and cubic boron nitride grades, as well as SS and rotational tools. The company sells its spark and glow plugs under NGK brand; and sensors, semiconductor packages/substrates, cutting tools, and fine ceramics under NTK brand. NGK Spark Plug Co., Ltd. was founded in 1936 and is headquartered in Nagoya, Japan.
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