| 1948年 |
Founded as Nanbu Shoko Co., Ltd. in Nihonbashi, Chuo-ku, Tokyo |
| 1949年 |
Started crystal unit production and sales |
| 1950年 |
Changed the Company’s name to Nihon Dempa Kogyo Co., Ltd. |
| 1957年 |
Requested Tohoku University to conduct research on synthetic quartz crystal and water-soluble crystal growth Began full-scale research and development of synthetic quartz crystal |
| 1958年 |
Succeeded in the growth of synthetic quartz crystal for the first time in Japan |
| 1959年 |
Started crystal filter production |
| 1960年 |
Started crystal oscillator production |
| 1963年 |
Completed a factory (current Sayama Plant) in Sayama City, Saitama Prefecture Started mass production of synthetic quartz crystal |
| 1965年 |
Started mass production of crystal units for color televisions |
| 1974年 |
Developed the world’s smallest (at the time) tuning fork crystal unit |
| 1975年 |
Opened a representative office in the United States and began overseas expansion |
| 1979年 |
Established a production facility in Malaysia (current ASIAN NDK CRYSTAL SDN. BHD.) and began building a global production system |
| 1985年 |
Developed the world’s first AT-cut crystal unit |
| 1986年 |
Established a new production facility in Malaysia (current NDK QUARTZ (M) SDN. BHD.) |
| 1988年 |
Established a sales office in the United Kingdom (NDK Europe Limited) and expanded the sales network toward Europe |
| 1990年 |
Listed NDK stock on the Second Section of the Tokyo Stock Exchange |
| 1994年 |
Established a production facility in Jiangsu Province, China (current Suzhou NDK Co., Ltd.) Obtained ISO 9001 certification |
| 1998年 |
Listed NDK stock on the First Section of the Tokyo Stock Exchange |
| 1999年 |
Obtained ISO 14001 certification |
| 2005年 |
Obtained IATF 16949 certification |
| 2008年 |
Obtained ISO/IEC 17025 certification |
| 2010年 |
NDK became the first company in Japan to adopt IFRS |
| 2014年 |
Obtained ISO 13485 certification |
| 2020年 |
Products for the small high-frequency (76.8 MHz) needs of 5G smartphones received the first certification from Qualcomm Technologies, Inc. and sales began *Qualcomm Snapdragon 690, 750G for the 5G Mobile Platform |
| 2021年 |
Obtained JIS Q 9100 certification |
| 2022年 |
Transferred to the Prime Market of the Tokyo Stock Exchange |
| 2023年 |
Established the Action Guidelines (Four Core Values) |
| 2025年 |
Formulated the new Mission “Wave Motion Tech Moves Our Future!” |
