Corporate bankruptcies linked to the yen's slide hit a new record in November, highlighting the strains on small and midsize companies as Prime Minister Shinzo Abe campaigns for re-election on his deflation-busting economic strategy.

Forty-two of the companies that failed in November cited the weakened currency as a contributing cause, bringing total bankruptcies associated with the yen so far this year to 301, almost triple that of the same period in 2013, according to a survey by Teikoku Databank Ltd.

It said surging costs of imported food, metals and construction materials are squeezing small companies.