| Apr. 1964 | Incorporated as SEKI DENGYOSHA Co., Ltd., with capital of ¥500,000. |
| Oct. 1964 | Started business transactions with TOKAI RIKA Co., Ltd. Modified the production system, and expanded operations. |
| Oct. 1982 | Established SHITOMO ELECTRONICS Co., Ltd. as a Group company. |
| Aug. 1989 | Changed the company name to SEKIDEN Co., Ltd. |
| June 2002 | Accredited with ISO 14001 certification. |
| Feb. 2003 | Accredited with ISO 9001 certification. |
| Feb. 2004 | Established TIANJIN SEKIDEN ELECTRONICS Co., Ltd. in Tianjin, China. |
| Apr. 2006 | Established FOSHAN SEKIDEN ELECTRONICS Co., Ltd. in Foshan City, Guangdong Province, China. |
| Jan. 2007 | Established MATSUZAKA SEKIDEN Co., Ltd.as a Group company. |
| Apr. 2009 | Established the Kasugai Factory and Tajimi Factory, as a business transfer from MEIRITSU DENKO Co., Ltd. |
| Oct. 2011 | Increased capital to ¥80,000,000 |
| Aug. 2012 | Established Sekiden (Thailand) Co., Ltd. in Samut Prakan Province, Thailand. |
| Oct. 2014 | Opened the SEKIDEN Nagoya Sales Office. |
| May 2017 | Completed construction of a new factory for Sekiden (Thailand) Co., Ltd. |
| Mar. 2018 | Selected for the Ministry of Economy, Trade and Industry (METI) Small and Medium Enterprise Agency’s “Vibrant HABATAKU Small and Medium Enterprises 300 Program.” |
| Mar. 2018 | TIANJIN SEKIDEN ELECTRONICS Co., Ltd. accredited with IATF 16949 certification. |
| Sep. 2018 | FOSHAN SEKIDEN ELECTRONICS Co., Ltd. accredited with IATF 16949 certification. |
| July 2020 | Changed the name of the Group company SHITOMO ELECTRONICS Co., Ltd. to SEKIDEN AXIS Co., Ltd. |
