All three console developers, Microsoft, Sony and Nintendo, have been sued for various patent infringements with their current-generation consoles. Most recently, Microsoft got served by Lucent over an MPEG-2 issue, and today, Texas-based Lonestar Inventions filed suit against Nintendo for a 1993 patent they own regarding "high capacitance structure in a semiconductor device," a space-saving method tripling the effectiveness of parallel plate capacitors by using layers of conducting strips.