[n: Shaping Of Layers, Poles Or Gaps For Improving The Form Of The Electrical Signal Transduced, E.g. For Shielding, Contour Effect, Equalizing, Side Flux Fringing, Cross Talk Reduction Between Heads Or Between Heads And Information Tracks (g9b/5.081, G9b/5.063 Take Precedence)] {g11b 5/31d4} Patents (Class G9B/5.082)