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Intangible Assets, net
 6 Months Ended
Mar. 31, 2014
Intangible Assets, net [Text Block]

8. Intangible Assets, net

Intangible assets as of September 30, 2013 and March 31, 2014 consist of the following:

    September 30, 2013     March 31, 2014  
Trademarks, computer software and technology $ 1,430,756   $ 1,424,475  
Accumulated amortization   (699,872 )   (782,368 )
  $ 730,884   $ 642,107  

Intangible assets represent the trademarks, computer software and technology used for battery production and research.

Amortization expenses were $54,149 and $46,279 for the three months ended March 31, 2013 and 2014 and $86,817 and $95,061 for the six months ended March 31, 2013 and 2014, respectively.