| 2023 | April | ELNA CO., LTD absorbs its wholly owned subsidiary, ELNA-TOHOKU CO., LTD by way of absorption type-merger. |
|---|---|---|
| October | ELNA CO., LTD absorbs TAIYO YUDEN ENERGY DEVICE CO.,LTD. (fellow subsidiary that shares the same parent company as ELNA) by way of absorption type-merger. | |
| October | TANIN ELNA CO., LTD. (Chiang Mai, Thailand) changed its Company Name to ELNA (THAILAND) CO., LTD. | |
| October | ELNA-SONIC SDN. BHD. (Penang, Malaysia) changed its Company Name to ELNA (MALAYSIA) SDN. BHD. | |
| 2020 | January | ELNA CO., LTD absorbs its wholly owned subsidiary, ELNA-ENERGY CO., LTD by way of absorption type-merger. |
| 2019 | January | ELNA CO., LTD became a wholly owned subsidiary of TAIYO YUDEN CO., LTD due to the execution of the share exchange. Accordingly, ELNA CO., LTD was delisted from the Second Section of the Tokyo Stock Exchange. |
| 2018 | April | ELNA PRINTED CIRCUITS CO., LTD. became a subsidiary of Global Brands Manufacture Limited |
| April | ELNA CO., LTD. entered into a new capital and business alliance with TAIYO YUDEN CO., LTD. ELNA became a subsidiary of TAIYO YUDEN. | |
| 2017 | October | Established ELNA PRINTED CIRCUITS CO., LTD. by company split from ELNA CO., LTD. and ELNA TOHOKU CO., LTD. |
| 2016 | November | Entered into a capital and business alliance with NANTONG JIANGHAI CAPACITOR CO., LTD. |
| 2015 | December | TAIYO YUDEN CO., LTD. became the largest shareholder in the company |
| 2014 | November | Entered into a capital and business alliance with TAIYO YUDEN CO., LTD. |
| 2013 | October | Established ELNA ENERGY CO., LTD., and launched solar power generation operations on Shirakawa Factory site of ELNA TOHOKU CO., LTD. |
| 2006 | April | Increased capital by allocation JPY 3 billion to third party (Japan Industrial Fund II managed by Japan Industrial Partners, Inc.) Japan Industrial Fund II became the largest shareholder |
| 2002 | August | Established ELNA (SHANGHAI) CO. LTD., as the sales company in China (Shanghai). |
| September | Transferred the business of ELNA FUKUSHIMA CO., LTD to ELNA AOMORI CO., LTD.(dissolved ELNA FUKUSHIMA CO., LTD.) | |
| September | Changed the name of ELNA AOMORI CO., LTD. To ELNA TOHOKU CO. LTD. | |
| 1996 | September | Established ELNA EUROPE LTD., as the sakes company in the UK |
| December | Established ELNA (HK) CO. LTD., as the sakes company in China (Hongkong). | |
| 1995 | March | Established ELNA-SONICS SDN. BHD. in Malaysia |
| April | Jointly Established ELNA PCB (M) SDN. BHD. in Malaysia | |
| 1991 | October | Changed the name of subsidiaries to ELNA FUKUSHIMA CO., LTD., ELNA AOMORI CO., LTD., ELAN MATSUMOTO CO., LTD. |
| 1984 | August | ASAHI GLASS CO., LTD. became the largest shareholder in the company |
| 1980 | January | Established MATSUMOTO PRINT CO., LTD. (currently, ELNA MATSUMOTO., LTD.) in Matsumoto, Nagano |
| February | Established TANIN CONDENSER CO., LTD. (currently, TANIN ELNA CO., LTD.) in Thailand. | |
| 1979 | July | Established ELNA ELECTRONICS SINGAPORE (P) LTD., as the sales company in Singapore |
| October | Established AOMORI CONDENSER CO., LTD. (currently, ELNA TOHOKU CO., LTD. - Aomori Factory) in Kuroishi, Aomori | |
| 1977 | March | Established ELNA AMERICA INC., as the sales company in the USA |
| 1970 | June | Changed the name to ELNA CO., LTD. |
| December | Listed in the second section of the Tokyo Stock Exchange | |
| 1968 | March | Merged with ELNA ELECTONICS CO., LTD. |
| 1961 | October | Established ELNA FUKUSHIMA CO., LTD. (currently, ELNA TOHOKU CO., LTD.- Shirakawa Factory) in Shirakawa, Fukushima |
| 1960 | February | Started production and sales of "Printed Circuit Boards (PCBs)" |
| 1937 | May | Fox Electronics Co., Ltd. established (establishiment of the Company) |
| 1934 | November | Started production and sales of "Aluminium Electrolytic Capacitors" |
| 1929 | July | ELNA ELCTRONICS CO., LTD. Establshied |
