Corporate bankruptcies decreased 6.3 percent on year to 744 cases in June, a private credit research agency said Tuesday.

It is the third straight month of decline. In May, bankruptcies fell 8.1 percent, according to Teikoku Databank Ltd.

Corporate failures during the first half of the year rose 5.3 percent from the previous six months to 4,625 cases, indicating that bankruptcies are in a "mild uptrend," the agency said.

Debts left behind by insolvent companies in June fell 12.8 percent on year to 383.2 billion yen. Debts for the first half of the year declined 8.7 percent to 2.8 trillion yen.