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-ku, 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.

Contents 1 History 2 Products 3 Location Summary 4 See also 5 External links

[edit] History

• 1948 : NDK was established.
• 1950 : Started crystal unit production and sales.
• 1958 : Succeeded in test production of synthetic quartz crystal.
• 1959 : Started crystal filter production.
• 1960 : Started crystal oscillator production.
• 1963 : Began trading of NDK stock on the OTC market.
• 1979 : Developed and industrialized surface acoustic wave (SAW) filter.
• 1990 : Listed NDK stock on Second Section of the Tokyo Stock Exchange.
• 1998 : Listed on the First Section of the Tokyo Stock Exchange.

[edit] Products

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

[edit] Location Summary

NDK has production and engineering facilities in the following countries: Japan, China, Germany, Malaysia, and United States.

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

[edit] See also

• NDK Crystal, Inc.

[edit] External links

• Nihon Dempa Kogyo Co., Ltd.