Mizuno Corp. saw first half net sales increase 8.0% to ¥46.91 billion ($729.1 mm) from ¥80.50 billion ($698.7 mm) in the year-ago half. Gross margins declined 70 basis points to 41.9% of sales from 42.6% last year. Net income dropped 38.0% to ¥2.07 billion ($17.4 mm) from ¥3.35 billion ($29.1 mm) in the year-ago period.