NTT DoCoMo (NYSE: DCM) released full year earnings for the period ending 31 March 2008 today. Net profits in the January-March quarter more than doubled to 114.7 yen billion ($1.38 million), thanks to reduced personnel expenses and lowered costs of selling mobile handsets, reports Marketwatch. The declined costs were able to offset DoCoMo’s call charge cuts that the carrier put in place to stave off its rivals KDDI and Softbank. For the fiscal year ending March, the carrier, Japan’s largest by subscriber numbers, is forecasting a net profit of 503 billion yen ($4.8 billion) on revenue of 4.678 trillion yen ($44.8 billion). (Earnings in PDF).

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