A perpendicular magnetic recording media with a patterned soft magnetic underlayer is disclosed. The recording media may be a disk including a substrate, a patterned underlayer, and a magnetically hard recording layer. The underlayer may be provided in the form of concentric bands having widths less...http://www.google.es/patents/US20020071214?utm_source=gb-gplus-sharePatente US20020071214 - Perpendicular magnetic recording media with patterned soft magnetic underlayer
Perpendicular magnetic recording media with patterned soft magnetic underlayer
Número de solicitud: 09/917,115 Número de publicación: US 2002/0071214 A1 Fecha de presentación: 27 Jul 2001 Patente emitida: US6703099 ( Fecha de emisión 9 Mar 2004)
