| 1931-08 |
The late Toshiaki Sato succeeded in the first productization of electrolytic capacitors in Japan. He established the joint-stock company Sato Electric Industrial Works. Production commenced. |
| 1947-08 |
Reorganized the joint-stock company Sato Electric Industrial Works and established Japan Chemical Capacitor Co., Ltd. |
| 1952-09 |
Opened Osaka branch office. |
| 1952-09 |
Opened Osaka Sales Office. |
| 1958-09 |
The new Ome factory was completed. |
| 1958-09 |
Completion of the new Ome factory. |
| 1963-05 |
Changed the company name to Japan Chemical Capacitors Co., Ltd. |
| 1966-04 |
Constructed Miyagi Factory (Osaki City, Miyagi Prefecture) and started production of small electrolytic capacitors. |
| 1966-04 |
Construction of Miyagi Factory (Miyagi Prefecture Osaki City, now Chemicon East Japan Co., Ltd. Miyagi Factory) to produce small electrolytic capacitors. |
| 1966-06 |
Established Hitachi Electrolytic Foil Laboratory (later renamed KDK Corporation). |
| 1969-03 |
Constructed Iwate Factory (Kitakami City, Iwate Prefecture) and started mass production of small electrolytic capacitors. |
| 1969-03 |
Construction of Iwate Factory (Iwate Prefecture Kitakami City, now Chemicon East Japan Co., Ltd. Iwate Factory) to mass-produce small electrolytic capacitors. |
| 1970-06 |
Established local subsidiary UNITED CHEMI-CON, INC. in the United States. |
| 1970-06 |
Established a local subsidiary, United Chemi-Con, Inc. (USA), as an overseas sales base. |
| 1970-09 |
Listed on the Second Section of the Tokyo Stock Exchange. |
| 1971-01 |
Opened Nagoya Sales Office. |
| 1971-01 |
Established Nagoya Sales Office. |
| 1972-09 |
Established joint venture San'ei Electronics Industry Co., Ltd. in Korea. |
| 1975-02 |
Established local subsidiary SINGAPORE CHEMI-CON (PTE.) LTD. in Singapore. |
| 1976-06 |
Established Fukushima Chemicon Co., Ltd. and increased production of large electrolytic capacitors. |
| 1976-06 |
Established Fukushima Chemicon Co., Ltd. (Fukushima Prefecture Nishihiragawa District Yabuki Town, now Chemicon East Japan Co., Ltd. Fukushima Factory) to increase production of large electrolytic capacitors. |
| 1977-02 |
Established EUROPE CHEMI-CON (DEUTSCHLAND) GmbH in Germany. |
| 1977-02 |
Established a local subsidiary, Europe Chemi-Con (Germany) GmbH, as a sales base for the European region. |
| 1977-09 |
Designated on the First Section of the Tokyo Stock Exchange. |
| 1977-10 |
Opened Saitama Sales Office. |
| 1979-04 |
Established local subsidiary Taiwan Kamei Industrial Co., Ltd. in Taiwan. |
| 1980-09 |
Established ASIA CHEMI-CON COMPANY LTD. in Hong Kong. |
| 1980-09 |
Established Asia Chemi-Con Company Ltd. (now Hong Kong Chemi-Con Ltd.) in Hong Kong. |
| 1981-07 |
Changed the company name to Japan Chemicon Co., Ltd. |
| 1982-07 |
Opened Utsunomiya Sales Office. |
| 1982-07 |
Established Utsunomiya Sales Office. |
| 1983-10 |
Established Chemicon Precision Co., Ltd. (Nagaoka City, Niigata Prefecture). |
| 1983-10 |
Established Chemi-Con Precision Co., Ltd. (Niigata Prefecture Nagaoka City, now Chemi-Con Nagaoka Co., Ltd.) for precision mechanical parts production. |
| 1984-09 |
Opened Ibaraki Sales Office. |
| 1984-09 |
Established Ibaraki Sales Office. |
| 1986-04 |
Established Iwate Electronics Co., Ltd. (Kitakami City, Iwate Prefecture). |
| 1986-04 |
Established Iwate Electronics Co., Ltd. (Iwate Prefecture Kitakami City, now amorphous magnetic parts design and production) for hybrid IC production. |
| 1988-04 |
Established Kanagawa Sales Office. |
| 1988-04 |
Established Kanagawa Sales Office. |
| 1989-11 |
Established Nagano Sales Office. |
| 1989-11 |
Established Nagano Sales Office. |
| 1990-10 |
Established Sendai Sales Office. |
| 1990-10 |
Established Sendai Sales Office. |
| 1990-12 |
Started production at Niigata Factory in the aluminum electrode foil processing plant. |
| 1992-02 |
Established Fukuoka Sales Office. |
| 1992-02 |
Established Fukuoka Sales Office. |
| 1992-06 |
Established UNITED CHEMI-CON MANUFACTURING, INC. as a production base for electrolytic capacitors in the United States. |
| 1993-01 |
Established P. T. INDONESIA CHEMI-CON in Indonesia. |
| 1993-01 |
Established a local subsidiary, P. T. Indonesia Chemi-Con, as a production base for electrolytic capacitors in Indonesia. |
| 1995-04 |
Acquired shares of Marcon Electronics Co., Ltd. |
| 1995-04 |
Acquired shares of Marcon Electronics Co., Ltd. (Yamagata Prefecture Nagai City, now Chemi-Con Yamagata Co., Ltd. Nagai Factory). |
| 1997-04 |
Established Hokuriku Sales Office. |
| 1997-04 |
Acquired magnetic materials business from Mitsui Petrochemical Industries (now Mitsui Chemicals). |
| 1997-04 |
Established Hokuriku Sales Office. |
| 1998-05 |
Established Shanghai Kiya Trading Co., Ltd. |
| 1998-05 |
Established Shanghai Kiya Trading Co., Ltd. as a local subsidiary in China. |
| 1999-04 |
Established KDK Sales Co., Ltd. (Shinagawa-ku, Tokyo). |
| 1999-04 |
Established KDK Sales Corporation (Shinagawa-ku, Tokyo) for electrode foil sales. |
| 1999-10 |
Merged with KDK Co., Ltd. to strengthen technological development of aluminum electrolytic capacitors. |
| 2000-04 |
Established CHEMI-CON LABORATORY in the United States. |
| 2000-04 |
Established CHEMI-CON LABORATORY as a basic research institute in the United States. |
| 2000-10 |
Established Yamagata Electronics Co., Ltd. (Kawanishi, Higashitagawa District, Yamagata Prefecture). |
| 2001-04 |
Increased investment in Nichiju Marcon Co., Ltd. and changed the company name to Iwate Electric Industry Co., Ltd. |
| 2001-04 |
Increased capital in Nichiju Marukon Corporation to expand production of chemical foils, and changed the company name to Iwate Electric Industry Co., Ltd. |
| 2002-01 |
Started electrode foil formation business through a joint venture between Hidaka Electron Co., Ltd. and Nippon Electric Co. |
| 2002-01 |
Started joint venture with Nippon Denso Corporation for electrode foil chemical business at Hidaka Electron Corporation (Samani Town, Hokkaido). |
| 2002-08 |
Started production of aluminum electrolytic capacitors at Kiya-koh (Wuxi) Co., Ltd. |
| 2003-04 |
Established CHEMI-CON ELECTRONICS (THAILAND) CO., LTD. in Thailand. |
| 2003-04 |
Established local subsidiary CHEMI-CON ELECTRONICS (THAILAND) CO., LTD. in Thailand. |
| 2003-11 |
Established CHEMI-CON KOREA CORP. in South Korea. |
| 2004-07 |
Relocated headquarters from Ome City, Tokyo to Shinagawa Ward, Tokyo. |
| 2004-09 |
Established CU Tech CORP. in South Korea. |
| 2005-07 |
Opened Keiji Sales Office. |
| 2005-07 |
Opened Keiji Sales Office. |
| 2008-04 |
Established Kiya Gong Trading (Shenzhen) Co., Ltd. in China. |
| 2008-04 |
Established local subsidiary Kiya Kogyo Trading (Shenzhen) Co., Ltd. in China. |
| 2009-07 |
Established Jami Gong Machinery Co., Ltd. in Taiwan. |
| 2009-07 |
Established local subsidiary Kemi Kogyo Machinery Co., Ltd. in Taiwan. |
| 2012-06 |
Established Kiya Gong Electronics R&D (Wuxi) Co., Ltd. in China. |
| 2012-06 |
Established local subsidiary Kiya Kogyo Electronic Research and Development (Wuxi) Co., Ltd. in China for product development. |
| 2016-02 |
Established CHEMI-CON AMERICAS HOLDINGS, INC. in the United States. |
| 2016-02 |
Established CHEMI-CON AMERICAS HOLDINGS, INC. as a holding company in the United States. |
| 2016-03 |
Transferred investment stake in CHEMI-CON LTD. in Hong Kong to CHEMI-CON LTD. in China. |
| 2016-08 |
Merged Jami Gong Machinery Co., Ltd. into Taiwan Jami Gong Co., Ltd. |
| 2017-04 |
Merged Fukushima Electric Industry Co., Ltd. into CHEMI-CON Fukushima Co., Ltd., and Yonezawa CHEMI-CON Co., Ltd. into CHEMI-CON Yamagata Co., Ltd. |
| 2020-04 |
Split off electrode foil business of CHEMI-CON Iwate and Fukushima, and transferred business to newly established CHEMI-CON East Japan Materials. Merged into CHEMI-CON Miyagi and renamed CHEMI-CON East Japan. |
| 2020-04 |
Split the electrode foil business of CHEMI-CON Iwate Co., Ltd. and CHEMI-CON Fukushima Co., Ltd., and transferred the business to the newly established CHEMI-CON East Japan Materials Co., Ltd. Merged CHEMI-CON Miyagi Co., Ltd. with CHEMI-CON Iwate Co., Ltd. and CHEMI-CON Fukushima Co., Ltd., and changed the company name to CHEMI-CON East Japan Co., Ltd. |
| 2022-04 |
Transitioned to the Tokyo Stock Exchange Prime Market. |
| 2022-04 |
Transitioned to the Tokyo Stock Exchange Prime Market. |
| 2023-10 |
Merged CHEMI-CON Seiki into CHEMI-CON East Japan. Merged Nagaoka CHEMI-CON into Yamagata CHEMI-CON and renamed to CHEMI-CON Devices. |
| 2023-10 |
Merged CHEMI-CON Seiki Co., Ltd. into CHEMI-CON East Japan Co., Ltd. Merged CHEMI-CON Nagaoka Co., Ltd. into CHEMI-CON Yamagata Co., Ltd., and changed the company name to CHEMI-CON Devices Co., Ltd. |
| 2024-02 |
Established UNITED CHEMI-CON, INC. San Jose Office in the United States. |
| 2024-06 |
Completed construction of dedicated building for hybrid capacitors at CHEMI-CON East Japan Miyagi Factory. |
| 2025-09 |
Established CHEMI-CON ELECTRONICS (INDIA) PRIVATE LIMITED in Delhi, India. |
| 2025-10 |
Opened UNITED CHEMI-CON, INC. Detroit Office in the United States. |
| 2025-11 |
Established CHEMI-CON ELECTRONICS (INDIA) PRIVATE LIMITED Bengaluru Office in India. |
| 2026-03 |
Opened UNITED CHEMI-CON, INC. Austin Office in the United States. |
