| 1947 |
April |
Koide Electric Works established in Minato-ku Tokyo. |
| 1960 |
November |
Toyo Denso Co.,Ltd. Established |
| 1964 |
April |
Tsurugashima Plant completed in Tsurugashima City, Saitama Prefecture, |
| 1965 |
August |
Laboratory and pilot factory completed in Tsurugashima Plant. |
| 1968 |
November |
Employee welfare center completed in Tsurugashima Plant. |
| 1969 |
May |
Diecast factory completed in Tsurugashima Plant. |
| 1972 |
October |
R&D laboratory completed in Tsurugashima Plant. |
| 1975 |
January |
Company headquarters relocated to newly completed office building in Shinbashi, Tokyo. |
| 1976 |
July |
Capital investment to a joint venture affiliate, Asian Autoparts Co.,Ltd. (Thailand) |
| 1977 |
June |
Established Kyusyu Toyo Co.,Ltd. as a subsidiary. |
| 1979 |
May |
Capital investment to a joint venture affiliate, P.T.KGD Indonesia Inc. (Indonesia) |
| December |
Established Toyo Denko Co.,Ltd. as a subsidiary. |
| 1986 |
April |
Kameyama Plant completed in Kameyama City, Mie Prefecture. |
| 1987 |
February |
Capital investment to a joint venture affiliate, Toyo Jianntsang Electric Co.,Ltd. (Taiwan) |
| April |
Established a fully owned subsidiary, Weastec. Inc. (U.S.A) |
| May |
Technical assistance contract signed with Armstrong AutoParts Sdn.Berhad. |
| November |
Concluded a technical cooperation contract with Shihlin Electric & Engineering Corp. (Taiwan) |
| December |
Concluded a technical cooperation contract with Lucas Industries Public Limited Company (U.K.). |
| 1989 |
April |
Annexed an affiliated company, Kyushu Toyo Co.,Ltd. and renamed it Toyo Denso Co.,Ltd. Kumamoto Plant. |
| 1990 |
February |
Established Toyo Honda Sales Co.,Ltd. (Honda Primo Toyo) |
| 1992 |
December |
Established Shanghai Toyo Denso Co.,Ltd. as a subsidiary. |
| 1997 |
July |
Established Thai Toyo Denso Corporation as a subsidiary. |
| 2001 |
October |
Established P.T.Toyo Denso Indonesia as a subsidiary. |
| 2003 |
March |
Established Toyo Denso U.K.LTD. |
| 2005 |
February |
Established Toyo Denso India Pvt.Ltd.
as a subsidiary. |
| 2006 |
June |
Tsurugashima Plant was fully renovated as Tsurugashima Technical Center. |
| June |
Established Vietnam Toyo Denso Co.,Ltd.
as a subsidiary. |
