| Apr.1991 |
Tongyang Ultrasonic was founded (in Namdong Industrial Complex, Incheon) |
| Mar.1992 |
Developed and produced automatic cleaners for SMD line |
| Feb.1993 |
Developed resin fresh chemical deflashers |
| Jul.1993 |
Produced module cleaners for alternative detergents |
| May.1994 |
Developed and produced ultrasonic strippers |
| Nov.1994 |
Started to export cleaning facilities to Taiwan, China and other Asian countries |
| Mar.1995 |
Developed and produced automatic parts cleaners (low pressure/medium pressure cleaner) |
| Oct. 1995 |
Developed and produced auto parts cleaners (high pressure) |
| Apr. 1996 |
Developed and produced leadframe & terminal auto cleaners |
| Jun. 1996 |
Developed and produced cleaning facilities for auto batteries |
| Jul. 1996 |
Developed and produced debondelube machines |
| Jul. 1997 |
Developed and produced ultra-clean parts (HDD/FDD) cleaners |
| Mar. 1998 |
Became a corporation under the name of Tongyang Ultrasonic Co., Ltd.
(Capital for establishment: £Ü120,000,000.- ; CEO Yang, Hee-Jun) |
| Apr. 1998 |
Developed and produced ultra-precision cleaning facilities for head and arm of HDD parts |
| Jun. 1998 |
Developed and produced vacuum cleaning and vacuum drying facilities |
| Mar. 1999 |
Developed and produced metal mask auto cleaners |
| Aug. 1999 |
Registered as an investor for Korea Federation of Machinery Industry Cooperatives (Ref. No. 9944) |
| Sept. 1999 |
Started to supply the Armed Forces |
| Nov. 1999 |
Developed and produced vacuum compression solvent distillation recyclers |
