Figure skater Michael Xie is a familiar face at the Oakland Ice Center, where he has been training for the past year and a half under coach Laura Lipetsky. The 16-year-old from Washington comes to Oakland for weeks at a time to master jumps and perfect his performances before national competitions.  The rink is becoming more widely known in the figure skating community, having nurtured Olympian Alysa Liu, who came in seventh at the Beijing games this winter and until…