The Bank of Japan on Wednesday extended its emergency measures to support corporate financing beyond the September deadline to year's end, reflecting its downgraded outlook for the economy.

Among the steps introduced earlier this year by the BOJ was the outright purchase of corporate bonds and commercial paper from financial institutions. It also started offering unlimited loans to lenders with approved collateral at a 0.1 percent rate.

The programs, slated to end on Sept. 30, will now be extended to Dec. 31.