1948 Founded as Nanbu Shoko Co., Ltd.
1949 Started crystal unit production and sales
1950 Changed the Company's name to Nihon Dempa Kogyo Co., Ltd.
Relocated Registered Office to Ohyama-cho, Shibuya-ku, Tokyo
1954 Relocated to newly constructed Head Office and plant in Shibuya-ku, Tokyo
1959 Started crystal filter production
1960 Started crystal oscillator production
1962 Started construction of Sayama Plant in Sayama, Saitama Prefecture
1963 Started mass production of synthetic quartz crystals
Crystal cutting facility completed in the Sayama Plant
Began trading of NDK stock on the OTC market
1964 Assembly line completed in the Sayama Plant
Opened Osaka Sales Office for sales in Osaka
1970 Established production affiliate Hawk Denshi Co., Ltd. in Niigata Prefecture
(now Niigata NDK Co., Ltd.)
1975 Opened representative sales office in California, U.S.A.
1976 Established subsidiary Furukawa NDK Co., Ltd. in Miyagi Prefecture
1979 Established subsidiary ASIAN NDK CRYSTAL SDN. BHD. in Selangor, Malaysia
Established NDK America, Inc. in California, U.S.A., and dissolved representative sales office
1985 Completed main building at Sayama Plant
1986 Opened Chubu Sales Office for sales in Aichi Prefecture
Established production subsidiary Malaysian Quartz Crystal Sdn.Bhd. in Selangor, Malaysia [now NDK QUARTZ (M) SDN. BHD.]
Completed construction of new facilities at Sayama Plant
1988 Established NDK Electronics Singapore Pte. Ltd. [now NDK Crystal Asia, Pte. Ltd.] in Singapore.
Established sales subsidiary NDK Europe Limited in the United Kingdom
1989 Established production subsidiary Hakodate NDK Co., Ltd. in Hakodate, Hokkaido
1990 Relocated Head Office functions to Shinjuku-ku, Tokyo
Listed NDK stock on the Second Section of the Tokyo Stock Exchange
1994 Established production subsidiary Suzhou NDK Co., Ltd. in Suzhou, China
Established sales subsidiary NDK Italy Srl [now NDK Europe Limited, Italy Office]
ISO 9001 certification obtained
1995 Established sales subsidiary NDK ELECTRONICS (HK) LIMITED in Hong Kong
1998 QS-9000 certification obtained
Listed on the First Section of the Tokyo Stock Exchange
1999 ISO 14001 certification obtained
2002 Established production subsidiary NDK Crystal, Inc. in Illinois, U.S.A.
Established NDK Holdings USA, Inc. in Illinois, U.S.A.
Established NRS Technologies Inc. in Hakodate, Hokkaido
Established sales subsidiary NDK-Electronics Shanghai Co., Ltd.
2004 Opened Chitose Technical Center in Chitose, Hokkaido
2005 NRS Technologies Inc. was merged into Hakodate NDK Co., Ltd.
Head Office functions relocated to Sasazuka, Shibuya-ku, Tokyo
IATF 16949 certification obtained
(Certified Plant: Furukawa NDK Co., Ltd., ASIAN NDK CRYSTAL SDN. BHD.,
NDK QUARTZ (M) SDN. BHD., Suzhou NDK Co., Ltd.)
2006 IATF 16949 certification obtained
(Certified Plant: Hakodate NDK Co., Ltd.)
2008 Quality Assurance Laboratory recognized by Japan Accreditation Board for Conformity Assessment as meeting the ISO/IEC 17025 (2005) international laboratory management standard
Obtained approval as a specified exporter from Tokyo Customs
2009 Completed Laboratory ATOM, a new research facility, within the Sayama Plant
Established Suzhou NDK Trading Co., Ltd. in Suzhou, China
2010 NDK became the first company in Japan to adopt IFRS
2014 ISO 13485 certification obtained
2015 Head Office functions relocated to Sasazuka, Shibuya-ku,Tokyo(within the same area before relocation)
2019 Established Suzhou NDK Co., Ltd., a subsidiary in Suzhou, China (factory relocation)
2020 Sold 51% of the Company's interest in subsidiary NDK SAW Devices Co., Ltd., NDK SAW Devices reclassified as an affiliated company
2022 Transferred from the First section of the Tokyo Stock Exchange to the Prime Market due to the market restructuring