The Nikkei 225 declined 0.13%, or 11.68 points, to 8,917.52, while the broader Topix rose 0.38%, or 2.92, to 772.77.
"Investors like the fact there haven't been any surprises in earnings data," said Hitoshi Asaoka, a Tokyo-based senior strategist at Mizuho Trust & Banking Co. "Both negative and positive reports about earnings fell within expectations, which is boosting confidence in the market."