| 1937 |
Established "Sangyo Boeki Syokai"at Marunouchi building in Marunouchi, Chiyoda-ku,Tokyo. |
| 1937 |
Started to sell and import electrical parts of automobiles,ships,airplanes and electrical insulaing. |
| 1937 |
千代田区丸の内、丸の内ビルで「産業貿易商会」として創業。 自動車、船舶、航空機の電装部品輸入と国内販売、電気絶縁材料の販売を開始 |
| 1948 |
Renamed "Chiyoda Denshi co.ltd.". |
| 1948 |
商号を「千代田電資株式会社」へ改正 |
| 1951 |
Established and Extended Shiba branch in Shibanakamon-mae, Minato-ku, Tokyo. |
| 1951 |
港区芝中門前に芝営業所を新築、開設 |
| 1959 |
Extended Shiba branch and move head office from Marunouchi building to Minato-ku |
| 1959 |
芝営業所を増築し、丸ビルから本社を港区へ移転 |
| 1961 |
Established Kumagaya branch in Kumagaya city,Saitama. |
| 1961 |
埼玉県熊谷市に熊谷営業所を開設 |
| 1966 |
Established Nagano branch in ueda city,Nagano. |
| 1966 |
長野県上田市に長野営業所を開設 |
| 1968 |
Established Koriyama branch in Koriyama city,Fukushima. |
| 1968 |
福島県郡山市に郡山営業所を開設 |
| 1969 |
Build and move new head office to 2-chome,Mita,Meguro-ku,Tokyo(at present). |
| 1969 |
目黒区三田2丁目（現在地）に本社を新築し、移転 |
| 1970 |
Estabhshed a delivery center at 1-chome, Mita,Meguro-ku,Tokyo(at present). |
| 1970 |
目黒区三田1丁目（現在地）配送センターを開設 |
| 1971 |
テープ類加工の関連会社「デンシ加工株式会社」を大田区に設立 |
| 1973 |
Established an affiliated company processing tapes "DenshikaKo co.,ltd." in Ota-ku,Tokyo. |
| 1979 |
Build new delivery center at same place,and move Denshi Kako co.,ltd to new delivery center. |
| 1979 |
配送センターを同地に新築、デンシ加工（株）を新配送センター内に移転 |
| 1981 |
lncreasing the capital ¥50,000,000. |
| 1982 |
Established Kyusyu branch (Kyusyu branch office at Present) in Kagoshima city. |
| 1982 |
鹿児島市に九州駐在所(現・九州出張所）を開設 |
| 1984 |
Build and moved new Koriyama branch, and renamed Tohoku branch. |
| 1984 |
郡山営業所を新築・移転、東北営業所に改称 |
| 1990 |
Extended Kumagaya branch. |
| 1990 |
熊谷営業所を増築 |
| 1993 |
Extended head office. |
| 1993 |
本社を増築 |
| 2001 |
Rebuild Nagano branch. |
| 2001 |
長野営業所を改築 |
| 2002 |
Certified IS014001 at head office,branches, delivery center and Denshi Kako co.,ltd. |
| 2002 |
Established "Chiyoda Denshi (HK)ltd." in HongKong. |
| 2002 |
本社ほか営業所、配送センター、デンシ加工でISO14001認証を取得 香港に現地法人「千代田電資（香港）有限公司」を設立 |
| 2007 |
Established "Thai Chiyoda Denshi co.,ltd."in Bangkok. |
| 2007 |
バンコクに現地法人「タイ千代田電資株式会社」を設立 |
| 2008 |
Held 70th anniversary of the founding. |
| 2008 |
Rebuild head office. |
| 2008 |
創業70周年記念式典を開催 本社を改築 |
| 2012 |
Established " CHIYODA DENSHI TRADING (SHANGHAI) co.,ltd " in Shanghai. |
| 2012 |
上海に現地法人「麒悠达贸易（上海）有限公司」を設立 |
| 2017 |
Held 80th anniversary of the founding. |
| 2017 |
Certified IS09001 at head office,branches, delivery center and Denshi Kako co.,ltd. |
| 2017 |
創業80周年記念式典を開催 本社ほか営業所、配送センター、デンシ加工でISO9001認証を取得 |
