Daihen Corporation

Established Osaka Transformer Co., Ltd. in Nakatsu-cho, Osaka Prefecture, and started mass production of pole-mounted transformers

Founder Aizō Kobayashi was quick to adopt the Ford production system for transformer manufacturing, and aimed to provide high-quality products at surprisingly low prices through groundbreaking mass production of pole-mounted transformers. The spirit of "Excellent Quality, Low Price, Prompt Delivery" proposed at the company's founding has been inherited as the "Spirit of Entrepreneurship" to this day.

Relocated the factory to the current location (Yodogawa-ku, Osaka City)

July 1930: Relocated factory to current location (Yodogawa-ku, Osaka City)

Started production of electric welding machines

March 1934: Started production of electric welding machines

Established Shikoku Transformer Co., Ltd. in Kagawa Prefecture in joint venture with Shikoku Electric Power Co., Inc. (now Shikoku Power Co., Inc.)

August 1946: Established Shikoku Transformer Co., Ltd. in a joint venture with Shikoku Electric Power (now Shikoku Electric Power Co., Inc.) in Kagawa Prefecture

Established Osaka Fuse Co., Ltd., a company for manufacturing and selling power fuses (now Daihen Aomori Co., Ltd.)

Listed on the Osaka Securities Exchange

November 1953: Listed on the Osaka Securities Exchange

Established Kyushu Transformer Co., Ltd. in joint venture with Kyushu Electric Power Co., Inc. (now Q-Hen Co., Ltd.) in Fukuoka Prefecture

October 1959: Established Kyushu Transformer Co., Ltd. in a joint venture with Kyushu Electric Power (now QHEN Co., Ltd.) in Fukuoka Prefecture

Listed on the First Section of the Fukuoka Stock Exchange

September 1960: Listed on the Fukuoka Stock Exchange First Section

Established a new welding machine factory (Settsu Plant) in Settsu City, Osaka Prefecture

July 1961: New welding machine factory established in Settsu City, Osaka Prefecture (Settsu Plant)

Listed on the First Section of the Tokyo Stock Exchange

October 1961: Listed on the Tokyo Stock Exchange First Section

Merged with Kanden Kanpei Manufacturing Co., Ltd. (now Kanpei Factory)

May 1965: Merged with Kanden Kanpei Manufacturing Co., Ltd. (now Kanpei Factory)

Established a pole-mounted transformer factory in Chitose City, Hokkaido

Established Tottori DAIHEN Co., Ltd. as the second production base for welding machines: (currently DAIHEN Industrial Equipment Co., Ltd.)

New Mie factory established, production of ultra-high voltage and large-capacity transformers started

November 1973: New Mie Factory established, began production of ultra-high voltage and large-capacity transformers

Established DAIHEN Stud Co., Ltd., a company specializing in stud welding

Established OTC America, a sales company for welding equipment in the United States (currently DAIHEN, Inc.)

March 1979: Established OTC America, a sales company for welding equipment in the United States (now DAIHEN, Inc.)

Started sales of robots for arc welding

May 1980: Started sales of arc welding robots

Established OTC Europe, a sales company for welding equipment in Germany: (currently OTC DAIHEN EUROPE GmbH)

Established Oita DAIHEN Co., Ltd., a software development company (currently DAIHEN Tech Co., Ltd.)

Changed trade name from Osaka Transformer Co., Ltd. to DAIHEN Co., Ltd.: formulated management philosophy "Trust and Creativity"

December 1985: Changed name from Osaka Transformer Co., Ltd. to DAIHEN Co., Ltd.; established management philosophy "Trust and Creativity"

In 1985, when the fifth-generation president, Keijiro Kobayashi, actively expanded into fields other than transformers such as welding machines and robots, and the business was growing, the company changed its name to "Daigen Corporation" with the aim of further growth. At the same time, it established a management philosophy called "Trust and Creativity," which reflects the fundamental principles of conducting business. Daigen values trust with related parties and aims for healthy growth by constantly creating new value, contributing to social development.

Started production of high-frequency power supplies for semiconductor manufacturing equipment

Received Deming Prize Implementation Award

Established DAIHEN Thailand, a welding equipment manufacturing company in Thailand: (currently OTC DAIHEN Asia Co., Ltd.): started shipping semiconductor wafer transfer robots

April 1989: Established DAIHEN Thailand, a welding equipment manufacturing company in Thailand (now OTC DAIHEN Asia Co., Ltd.); began shipping semiconductor wafer transport robots

Established a large transformer manufacturing and sales company through merger with a local Thai corporation: (DAIHEN ELECTRIC CO., LTD.)

August 1989: Merged with local Thai company to establish a large transformer manufacturing and sales company (DAIHEN ELECTRIC CO., LTD.)

Established a sales company for semiconductor manufacturing-related equipment in the United States: (DAIHEN Advanced Component, Inc.)

May 1996: Established a sales company for semiconductor manufacturing equipment in the United States (DAIHEN Advanced Component, Inc.)

Established DAIHEN Electric System Co., Ltd., a sales company for power equipment: established Botangjiang OTC Welding Co., Ltd. as a welding production base in China

November 1997: Established DAIHEN Electric System Co., Ltd., a sales company for power equipment; established Mudanjiang OTC Welding Machine Co., Ltd. as a welding machine production base in China

Established Taiwan OTC Co., Ltd., a sales company for welding equipment in Taiwan

April 1998: Established Taiwan OTC Co., Ltd., a sales company for welding equipment in Taiwan

Made Osaka Electric Co., Ltd., a long-established welding machine manufacturer, a subsidiary

November 1998: Made Osaka Electric Co., Ltd., a long-established welding machine manufacturer, a subsidiary

Established OTC Electromechanical (Shanghai) Co., Ltd., a sales company for welding equipment in China

August 2001: Established OTC Machinery (Shanghai) Co., Ltd., a sales company for welding equipment in China

Established DAIHEN Korea Co., Ltd., a Korean base for semiconductor equipment business

May 2002: Established DAIHEN KOREA Co., Ltd., a Korean base for semiconductor equipment business

Established DAIHEN Welding Mechatronics Co., Ltd., a sales company for welding equipment

September 2002: Established DAIHEN Welding Mechatronics Systems Co., Ltd., a sales company for welding equipment

Developed a 100kW power conditioner for solar power generation ahead of the industry: established a second welding machine production base in Qingdao, China (OTC Electromechanical (Qingdao) Co., Ltd.)

April 2003: Developed a 100kW power conditioner for solar power generation ahead of the industry; Established a second welding equipment production base in Qingdao, China (OTC Machinery Qingdao Co., Ltd.)

Established a manufacturing and sales company for power equipment in Beijing, China: (Daihen OTC Mechanical and Electrical (Beijing) Co., Ltd.)

October 2006: Established a power equipment production and sales company in Beijing, China (DAIHEN OTC Machinery Beijing Co., Ltd.)

Established a new welding mechatronics business base at Rokkō Island, Kobe City: (Settsu Business Office closed)

October 2007: Established Rokkō Business Office as a welding mechatronics business base in Rokkō Island, Kobe City; Closed Setsu Business Office

Established a manufacturing and sales service company for FPD transport robots in Changshu, China: (Daihen Precision Machinery (Changshu) Co., Ltd.)

December 2009: Established FPD transport robot production and sales service company in Changshu, China (DAIHEN Precision Machinery Changshu Co., Ltd.)

Acquired MECS business (wafer transport robot business)

Established a sales company for welding equipment in India (OTC DAIHEN INDIA PVT. LTD.)

June 2011: Established a welding equipment sales company in India (OTC DAIHEN INDIA PVT. LTD.)

Tetsuya Tajiri, the eighth-generation president, set the company's goal of making stakeholders around the company feel more happiness ("Achieving Everyone's Happiness Simultaneously") and clearly defined specific goals for each stakeholder ("Happiness Target Values"). In 2012, he established the basic management philosophy to realize these goals. By developing unique products that solve social issues, contributing to social sustainability, and increasing sales and profits, the company aims to strengthen trust with stakeholders, which is the foundation of corporate sustainability. Distributing profits in line with the "Happiness Target Values" enhances trust with stakeholders and strengthens the company's sustainability.

Established a sales company for welding equipment in Indonesia: (PT.OTC DAIHEN INDONESIA)

July 2012: Established a welding equipment sales company in Indonesia (PT.OTC DAIHEN INDONESIA)

Made Slovenian welding machine manufacturer Varstroj a subsidiary: (DAIHEN VARSTROJ welding, cutting, and robotics d.d.)

February 2014: Made Slovenian welding machine manufacturer Varstroj a subsidiary (DAIHEN VARSTROJ welding, cutting, and robotics d.d.)

Acquired 60% of shares of China Electric Manufacturing Co., Ltd., and made it a subsidiary

July 2015: Acquired 60% of shares of China Electric Manufacturing Co., Ltd., and made it a subsidiary

Started sales of wireless power supply systems

Established a sales company for welding equipment in Mexico: (DAIHEN MEXICO S.A. de C.V.)

October 2016: Established a welding equipment sales company in Mexico (DAIHEN MEXICO S.A. de C.V.)

Daihen Mechatronics Systems Co., Ltd. merged with Daihen Technos Co., Ltd. and changed its trade name to Daihen Technos Support Co., Ltd.

July 2018: DAIHEN Welding Mechatronics Systems Co., Ltd. merged with DAIHEN Technos Co., Ltd. and changed its trade name to DAIHEN Technos Support Co., Ltd.

Made German robot system integrator LASOtech Systems GmbH a subsidiary

December 2019: Made German robot system integrator LASOtech Systems GmbH a subsidiary

Made German robot system integrator Femitec GmbH a subsidiary

May 2022: Made German robot system integrator Femitec GmbH a subsidiary

Changed reporting segments to "Energy Management," "Factory Automation," and "Material Processing"

Acquired 70% of shares of Tohoku Electric Manufacturing Co., Ltd., and made it a subsidiary

October 2023: Acquired 70% of shares of Tohoku Electric Manufacturing Co., Ltd., and made it a subsidiary

Acquired additional shares of Quaten Tech Co., Ltd., an equity-method affiliate, and made it a subsidiary

December 2023: Additional acquisition of shares of Shihen Tech Co., Ltd., an equity-method affiliate, and made it a subsidiary

Made German welding machine manufacturer Lorch Schweißtechnik GmbH a subsidiary

January 2024: Made German welding machine manufacturer Lorch Schweißtechnik GmbH a subsidiary

Made Dutch robot system integrator Rolan Robotics B.V. a subsidiary

April 2024: Made Dutch robot system integrator Rolan Robotics B.V. a subsidiary

Established Tokyo headquarters in Otemachi, Chiyoda-ku, Tokyo, and transitioned to a dual-headquarters system

Made US robot system integrator Force Design, Inc. a subsidiary

October 2024: Made US robot system integrator Force Design, Inc. a subsidiary