Nihon Dempa Kogyo

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Nihon Dempa Kogyo Co., Ltd. or NDK (日本電波工業株式会社 Nihon Dempa Kogyo Kabushiki-gaisha?) (TYO: 6779) is one of the world's largest Quartz Crystal Companies, based in Shibuya, Tokyo, Japan.

Using its synthetic quartz crystals, NDK produces crystal-related products such as crystal devices (e.g. crystal units, crystal oscillators, crystal filters), and also, ultrasonic transducers for medical use. In recent years, the company has begun to develop frequency synthesizers and low-power wireless modules.



  • Crystal Units
  • Crystal Oscillators
    • SPXO
    • TCXO
    • VCXO
    • OCXO
  • Crystal Filters
  • Surface Acoustic Wave (SAW) Devices
  • Optical Components
  • Synthetic Quartz Crystals
  • Ultrasonic Transducers
  • Frequency Synthesizers

Location Summary[edit]

NDK has production and engineering facilities in the following countries: Japan, China, Germany, Malaysia, and United States. The Belvidere, IL NDK facility has been inactive since a 2009 explosion destroyed one building and killed a member of the public. The explosion was in a crystal-growth autoclave that had undergone stress corrosion cracking and was inadequately inspected.[1]

NDK has sales offices in the following countries: Japan, China, France, Germany, Italy, Malaysia, Singapore, United Kingdom, and United States.

See also[edit]

External links[edit]