| < 2012 > |
| Mar. 02. | CHS model was added to the Power Module type.
|
| Mar. 02 | FTA , FTB model was added to the Noise Filter. |
| Mar. 02 | SNDPG / SNDHS series was added to the Unit type. |
| < 2011 > |
| Jul. 22. | PLA series was added to the Unit Type. |
| Jun. 20. | SPLFA series was added to the Unit Type. |
| Jun. 15. | Press Releases for PLA series. |
| Mar. 25. | [The 2nd report]Regarding effects of a big earthquake on Cosel, Japan. |
| Mar. 15. | Regarding effects of a big earthquake on Cosel, Japan. |
| < 2010 > |
| Jan. 15. | Cosel USA Signs Distributor Agreement with Sager Electronics. |
| < 2009 > |
| Dec. 28. | Cosel reports financial data for FY2009(DATA FILE 2009 Semi Annual).
|
| Sep. 18. | TAC,TBC model was added to the Noise Filter. |
| Sep. 07. | Environmental report was updated. |
| Aug. 28. | Cosel has launched new PC Board type, LFA series. |
| Jul. 15. | Cosel reports financial data for FY2008(DATA FILE 2009). |
| Jul. 09. | Cosel has launched new 10k-Watt AC-DC Front End Power Supply, SC series for DC 48V Distributed Power Systems. |
| Jun. 22. | Cosel has launched new On-Board type, DCDC converter, SUTS/SUTW series. |
| Jun. 22. | Cosel has added the "conformal coating" option in SUCS/SUCW series. |
| Jun. 12. | Cosel has launched new Power Module type, DCDC converter, DHS series. |
| May. 08. | The Cosel USA Inc. web site has been renewed. |
| < 2008 > |
| Aug. 22. | TAC,TBC was added to the Noise Filter. |
| Aug. 20. | Environmental report was updated. |
| Jul. 18. | DBS700 series was added to the Power Module Type. |
| May. 20. | LGA series was added to the PC Board Type. |