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Magnetic Recording Disk with High Start Stop Durability and Low Magnetic Errors

IP.com Disclosure Number: IPCOM000055288D
Original Publication Date: 1980-Jun-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Doerner, MF Peugh, HV [+details]

Abstract

A magnetic recording disk is coated with two separate coatings, one coating containing added alumina particles for durability in the start stop zones C and D, and the other coating containing no added alumina particles for the recording zones A and B. The start/stop zones can be made to any desirable width and located on any radius. The recording zones coated with the coating containing no alumina particles occupy all of the remaining surface.