Sales for the period were up 9.1% to 333.7 billion yen, lead by sales gains in North America and Europe.
Company officials said that sales growth, cost-cutting measures, and the weakening of the yen against the dollar more than offset increases in raw-material costs.
Operating income for Yokohama’s tire group increased 7.2%, to 18.4 billion yen, against a 10% increase in sales, to 248.5 billion yen.