Nikkei rises as risk appetite recovers on U.S. data; convenience stores shine

* Convenience stores outperform on strong earnings * Nintendo jumps on China easing ban * Mitsubishi Motors sag to 2-week low on dilution fears By Ayai Tomisawa TOKYO, Jan 8 (Reuters) - Japan's Nikkei share average rose on Wednesday morning to recoup some of the losses posted earlier in the week after strong trade data in the U.S. boosted risk appetite, and convenience store operators soared on strong earnings. The Nikkei rose 0.8 percent to 15,945.36 in mid-morning trade