The Hitachi's group net profit came to 238.87 billion yen ($2.96 billion), its highest-ever, after a loss of 106.96 billion yen in the previous year.
Operating profit more than doubled, surging 119.9 percent to 444.51 billion yen, as sales grew 3.9 percent to 9.32 trillion yen.
The results were almost in line with the company's expectations.
The March 11 quake and tsunami, which damaged some of the company's production bases, dented its net profit by 75 billion yen, the company said.
Sales were reduced by 130 billion yen due mainly to lower shipments.
Hitachi -- whose products range from computer hard- and software to nuclear power generation systems -- did not release an outlook for the business year to March 2012, citing uncertainty caused by the seismic disaster.