Nago Electric Co., Ltd. was established in Kotori Town, Nakamura Ward, Nagoya City, with capital of 500,000 yen, for the purpose of manufacturing and selling selenium rectifiers and welding equipment (currently Nadex Co., Ltd.).
Established Nagoya Den Gensha Co., Ltd. (now N-DEX Corporation) in Nakamura-ku, Nagoya City, with capital of 500,000 yen for the purpose of manufacturing and sales of selenium rectifiers and welding equipment.
Started full-scale manufacturing and sales of resistance welding control devices at the water cutting factory in Kita Ward, Nagoya City.
Started full-scale manufacturing and sales of resistance welding control devices at Mizukiri Factory in Kita-ku, Nagoya City.
Established Nishiharu Factory (now Technical Center) in Nishiharu Town, Nishikasugai District, Aichi Prefecture (now Nagoya City, Aichi Prefecture), and simultaneously abolished Mizukiri Factory.
Built a new head office building in Furutomachi, Naka-ku, Nagoya City, to expand sales and enhance organization, relocating from Kotori Town.
Established Nagoya Denko Works Co., Ltd. (now N-DEX Products Co., Ltd.).
Osaka Branch (currently Sales Department 2 (West Japan)) was opened in Yodogawa Ward, Osaka City. Tokyo Sales Office (currently Sales Department 1 (East Japan), currently in Kohoku Ward, Yokohama City) was also opened.
Opened Osaka Branch (currently Sales Department 2 (West Japan)) in Yodogawa-ku, Osaka City. Opened Tokyo Sales Office (currently Sales Department 1 (East Japan), now in Kohoku-ku, Yokohama City) in Suginami-ku, Tokyo.
Opened Osaka Branch (now Sales Department 2 (West Japan)) in Yodogawa-ku, Osaka City.
Established Tokyo Sales Office (now Sales Department 1 (East Japan), now Yokohama City, Kohoku Ward) in Suginami-ku, Tokyo.
WELTRONIC/TECHNITRON, CORP. (currently NADEX OF AMERICA CORP., a consolidated subsidiary) was established as a joint venture in Delaware, USA.
Established WELTRONIC/TECHNITRON, CORP. (currently a consolidated subsidiary NADDEX OF AMERICA CORP.) as a joint venture in Delaware, USA.
Established WELTRONIC/TECHNITRON, CORP. (now NADEX OF AMERICA CORP., a consolidated subsidiary) in Delaware, USA.
Nago Electric Co., Ltd. changed its trade name to Nadex Co., Ltd.
Changed trade name from Nagoya Electric Co., Ltd. to Nadex Co., Ltd.
Changed the company name from Nagoya Den Gensha to N-DEX.
Listed as an over-the-counter registered stock with the Japan Securities Dealers Association (now listed on the Tokyo Stock Exchange Standard Market).
Listed on the over-the-counter market as a registered stock of the Japan Securities Dealers Association (now listed on the Tokyo Stock Exchange Standard Market).
WELTRONIC/TECHNITRON, CORP. established Medar Corp. (now WELDING TECHNOLOGY CORP., a consolidated subsidiary) in Michigan, USA.
Acquired shares of Fujix Co., Ltd. (now a related company accounted for by the equity method).
Nadeko Machinery (Shanghai) Co., Ltd. (currently a consolidated subsidiary) was established in Shanghai, China.
Established Naden Kyuju Machinery (Shanghai) Co., Ltd. (currently a consolidated subsidiary) in Shanghai, China.
Established Nadenkyu Koki (Shanghai) Co., Ltd. (now a consolidated subsidiary) in Shanghai, China.
NADEX (THAILAND) CO., LTD. (currently a consolidated subsidiary) established in Bangkok, Thailand.
Established NADEX (THAILAND) CO., LTD. (currently a consolidated subsidiary) in Bangkok, Thailand.
Established NADEX (THAILAND) CO., LTD. (now a consolidated subsidiary) in Bangkok, Thailand.
Acquired shares of S.A. TECH CO., LTD. (now NADEX ENGINEERING CO., LTD., a consolidated subsidiary) in Bangkok, Thailand.
Opened Omiya Sales Office in Omiya Ward, Saitama City.
PT. NADESCO Indonesia (currently a consolidated subsidiary) was established in Cikarang, Indonesia.
PT. NADESCO INDONESIA (currently a consolidated subsidiary) established in Cikarang, Indonesia.
Established PT. NADESCO INDONESIA (currently a consolidated subsidiary) in Cikarang, Indonesia.
NADEX MEXICANA, S.A. de C.V. (currently a consolidated subsidiary) established in Querétaro, Mexico.
Business expansion driven by increasing demand for high-precision laser processing of various materials.
Established NADEX MEXICANA, S.A. de C.V. (currently a consolidated subsidiary) in Querétaro, Mexico.
NADEX MEXICANA, S.A. de C.V. (currently a consolidated subsidiary) was established in Querétaro, Mexico.
Hiroshima Sales Office (currently Hiroshima City Higashi Ward) was opened in Hiroshima City Asaminami Ward.
Kyoto Software Development Center (currently Kyoto Development Center) was opened in Kyoto City Shimogyo Ward.
Hamamatsu Sales Office (currently Hamamatsu City Chuo Ward) was opened in Hamamatsu City.
PT. NADESCO ENGINEERING Indonesia (currently a consolidated subsidiary) was established in Cikarang, Indonesia.
Project promotion. PT. NADESCO ENGINEERING INDONESIA (currently a consolidated subsidiary) begins operations in Cikarang, Indonesia. Strengthening manufacturing support in emerging countries.
NADEX ENGINEERING INDONESIA (currently a consolidated subsidiary) begins operations in Cikarang, Indonesia.
Accelerating the development of a system integration capable Tamari Industrial Group with high laser technology to provide total solutions.
Acquired shares of Tamari Industrial Group to strengthen total solution provision system.
Shares of Tamari Industries Co., Ltd. (currently a consolidated subsidiary) were acquired. As a result, Techno System Co., Ltd., a subsidiary of Tamari Industries Co., Ltd., was also consolidated.
Due to a review of the market classification of the Tokyo Stock Exchange, it was transferred from JASDAQ (Standard) to the Standard Market.
Ota Sales Office was opened in Ota City, Gunma Prefecture.
NDY Engineering Co., Ltd. (currently N.Y.TEC Co., Ltd., a consolidated subsidiary) was established in Tsuruoka City, Yamagata Prefecture.
Strengthening EV infrastructure business foundation through investment in two U.S. companies amid accelerating decarbonization.
Invested in two U.S. EV infrastructure companies to strengthen the foundation.
NADEX OF AMERICA CORP. acquired shares of Uptime EV Charger, Inc. (currently a consolidated subsidiary) in Michigan, USA.
NADEX OF AMERICA CORP. acquired shares of Income Power, Inc. (currently an equity-method non-applicable affiliate) in Michigan, USA.
Established NADDEX INDIA Pvt. Ltd. in Haryana, India.
Celebrating 75th anniversary. Established NADDEX INDIA Pvt. Ltd. in Haryana, India.
NADEX INDIA Pvt. Ltd. was established in Haryana, India.
On September 29, 2026, at Nagoya City East Star Junior High School, a career talk for second-year junior high students was held, and a Na-Dex employee participated as a lecturer. He spoke about his experiences before becoming a working adult and turning points in his life, and interacted with the students. The company says it will continue to engage in social contribution activities.
Na-Dex will hold its company event, Private Show 2026, from Wednesday, October 14, through Friday, October 16, 2026. The theme is contributing to smart factories. The event will take place at the Na-Dex Technology Center, 1 Tokushige Omiyamae, Kitanagoya City, Aichi Prefecture. Advance reservations are accepted through a dedicated page, and an invitation is available via a PDF link.
An analyst report by Omega Investment Co., Ltd. has been published. See the news release for details.
NaDEX will exhibit at International Logistics Exhibition 2026, held September 8–11, 2026. Its booth will feature a demonstration automating processes from receiving through transport and storage, including a logistics flow using automated guided forklifts and shuttle racks. The company will also showcase a non-contact laser label-printing system and solutions integrated with warehouse control systems (WCS).
NaDEX will exhibit at the International Welding Show, taking place at Tokyo Big Sight from September 16 to 19, 2026. Under the theme “Contributing to Smart Factories,” the company will present the latest information on stabilizing quality, reducing labor in inspections, and using data. Visitors are invited to stop by its booth.
On August 20, 2026, NaDEX Co., Ltd. announced a price revision for its resistance welding controllers. See the notice about the price revision for details.
NaDex Co., Ltd. published a public notice of its board resolution on the disposal of treasury shares on its electronic notice page on August 18, 2026. See the linked page for details.
Na-Dex Corporation will take a summer vacation from August 8 to August 16, 2026. Inquiries during this period will be handled after August 17. We appreciate your understanding and cooperation.
Na-Dex Inc. has initiated a new project to promote high precision, miniaturization, and efficiency in manufacturing processes for the semiconductor and generative AI related markets.
Na-DEX Corporation conducted an automation demonstration of XYZ Robotics' unloader robot "RockyOne" at the logistics facility of Japan TransCity, aiming to improve working conditions and increase productivity.