| 1950 Mar. | Establishment of Akihabara Radio Store, together with 10 colleagues |
| 1972 Dec. | The establishment of Tominaga Electric Company, Ltd., with the separation of the wholesale division of Akihabara Radio Store wiring materials department President Fukuei Chinen Capital 3,000,000yen Signing of a special sales agent contract with Nanaboshi Electric Manufacturing. Company, Ltd. Signing of a special sales agent contract with Sanwa Connector Manufacturing. Co, Ltd. Signing of a special sales agent contract with Hirakawa Hewtech Corp. Signing of a special sales agent contract with Toyozumi Dengenkiki. Co, Ltd. |
| 1974 | Signing of a special sales agent contract with Hakuto. Co, Ltd. |
| 1975 | Establishment of wiring materials department as new organization, Fukunaga Electrical Company |
| 1980 | Signing of a special sales agent contract with Sanyo Denki. Co, Ltd. Increase of capital stock by 10,000,000yen |
| 1981 | Signing of a special sales agent contract with Hitachi Cable, Ltd. |
| 1984 | Head office moved to its present location in order to expand business |
| 1986 Nov. | Establishment of Chiba factory (cable assembly) Establishment of Chiba office |
| 1987 | Increase of capital stock by 30,000,000yen |
| 1990 Sep. | Fukuei Chinen assumes office as chairman of the board of directors Toshihide Chinen assumes office as representative director |
| 1990 Nov. | Inauguration of a system of overseas training |
| 1990 Jul. | Moving of Chiba office |
| 1993 Aug. | Establishment of Sendai office |
| 1994 | Founding of overseas division Introduction of LAN system |
| 1996 Sep. | Expansion of office |
| 1996 Oct. | Establishment of Internet web site |
| 2000 Mar. | 50th anniversary of business commencement |
| 2003 Jan. | Acquisition of head office building (purchase of head office building through loans) Increase of capital stock by 50,000,000yen |
| 2004 Jul. | Acquisition of ISO14001 certification (inspection registered) |
| 2004 Aug. | Issue of first unsecured debenture for 50,000,000yen (Limited to institutional investors eligible for guarantee from Mizuho Bank, Ltd.) |
| 2005 Jul. | Full reform of web site |
| 2009 Sep. | Registration of revision of ISO14001 for 2004 |
| 2007 Mar. | Introduction of information sharing system ArcWizShare (Fuji Xerox) |
| 2009 Jul. | Full reform of web site |
| 2012 Sep. | Creation and publishing of Action Plans for Enterprise in order to work towards the compatibility of work with child rearing |
| 2014 Mar. | Completion of formulation of business continuity plan (BCP) by participating in Tokyo BCP support project |
| 2014 Jul. | Signing of a special sales agent contract with Dai-ichi Seiko Co.,Ltd. |
| 2020 Mar. | 70th anniversary of business commencement |
| 2022 Dec. | 50th anniversary of our company's establishment |
