Toshiba Corp. plans to issue some 400 billion yen in corporate bonds by the end of the year to pay for its acquisition of U.S.-based Westinghouse Electric Co. and other key investments, a Toshiba executive said Wednesday.

The issue is among the largest by a Japanese company outside the finance, utility or public infrastructure sectors.

Under the plan, Toshiba aims to raise long-term capital to invest in promising projects while interest rates remain low, said the executive.