A read head, which has an air bearing surface (ABS), includes a yoke which has first and second legs which are interconnected at a location within the head at a distance d1 from the ABS wherein the first and second legs have first and second end edges respectively which are located at the ABS and spaced...http://www.google.de/patents/US6567244?utm_source=gb-gplus-sharePatent US6567244 - Differential yoke type read head
