Nihon Dempa Kogyo Co., Ltd., commonly known as NDK, is a Japanese multinational electronics company founded in 1948 and headquartered in Tokyo, Japan. The company specializes in the design, manufacture, and sale of quartz crystal devices, which are essential frequency control components used in a vast array of electronic equipment. NDK's core product line includes crystal units (such as tuning fork crystals and AT-cut crystals), crystal oscillators (including SPXO, VCXO, TCXO, OCXO and differential oscillators), and crystal filters. These products support a wide range of frequencies and are renowned for high precision and reliability. NDK serves diverse industries including automotive electronics, mobile communications, IoT, consumer electronics, and industrial equipment. As one of the world's largest quartz crystal device manufacturers, NDK holds a leading global market share and is recognized for its advanced technology in miniaturization and high-frequency crystals. The company operates manufacturing and sales bases across Asia, Europe, and North America, ensuring a robust global supply chain. NDK's commitment to quality and innovation has solidified its position as a preferred supplier for demanding applications like 5G infrastructure and ADAS. Through continuous R&D, NDK offers products that meet stringent automotive AEC-Q200 standards and harsh environment requirements. With its founding philosophy of contributing to society through customer service, NDK remains dedicated to technological excellence and social responsibility.