| 1917 |
Business started. |
| 1943 |
Taiyo Electric Co.,Ltd founded with a capital of 1,000,000 yen. |
| 1944 |
Gifu factory completed. |
| 1962 |
Isesaki factory (a present controller factory) completed. |
| 1966 |
Gifu factory was authorized by the Ministry of Transport Maritime Bureau for the first time in the trade as a place of business with production in compliance with ships safety laws. |
| 1967 |
Isesaki factory was authorized by the ministry of transport maritime bureau as a place of business in compliance with ships safety laws. |
| 1968 |
Gunma factory completed. |
| 1970 |
Gunma factory was authorized by the ministry of transport maritime bureau as a place of business in compliance with ships safety laws. |
| 1974 |
Wang-ta Iron Works Co.,Ltd establishment. |
| 1976 |
Gifuhashima factory completed commencing specialized manufacture of blowers. |
| 1979 |
KT Electric co.,Ltd established in Pusan. |
| 1982 |
Mihara branch office opened.
Gifu factory was awarded a quality assurance certificate by Lloyd's Register concerning quality guarantees of motors and generators for the first time in Japan as electrical machinery and appliances manufacturer. |
| 1984 |
Taiyo Electronic Co., Ltd., established. |
| 1985 |
Gifu factory was approved by American Bureau of Shipping as an authorized quality assurance factory. |
| 1991 |
P.T.Taiyo Electric Indonesia established in Surabaya. |
| 1992 |
Kongsberg Norcontrol company Business tie-up with Norway. |
| 1993 |
Gifu factory acquired the certification of international guarantee of quality standard of ISO-9001. |
| 1994 |
Exhibit Products such as marine simulators with SEA-JAPAN94Data Bridge2000.
Gunma business Office and Gifu factory was approved by NK.
Gifu factory becomes a guarantee of quality authorization factory of a CR shipping classification society. |
| 1995 |
Inaugurated Kani factory by Gifu business office. |
| 1996 |
Established Gunma business office center. |
| 1997 |
Inaugurated a system factory at Gunma business office. |
| 1998 |
Gifu group construction preparation enterprise. |
| 1999 |
Generating system factory and controller factory of Gunma business office acquired the certification of international guarantee of quality standard ISO -9001. |
| 2000 |
Kani factory office ridge and a factory reconstruction preparation enterprise. |
| 2001 |
Gunma Business Office Center certified as a quality assurance factory by Lloyd's Register of Shipping. |
| 2002 |
Gunma Business Office Center certified as a quality assurance factory by China Corporation Register of Shipping.
Gifu factory acquired MSA certification from DNV. |
| 2004 |
Generating Systemfactory of Gunma business office certified as a quality assurance factory by Korean Register of Shipping. |
| 2009 |
Gifu factory acquired the environment management system of ISO-14001.
Generating system factory and controller factory of Gunma business office acquired the environment management system of ISO-14001.
Gifu factory certified as a quality assurance factory by Korean Register of Shipping. |
