Method of manufacturing a thin film magnetic recording medium ha

Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428336, 428611, 428668, 428673, 428674, 428694TS, 428694TP, 428694TM, 428900, 427131, 427132, 2041972, G11B 566

Patent

active

058403949

ABSTRACT:
A method for manufacturing a magnetic disk includes the step of providing first and second magnetic layers on a substrate. The first magnetic layer comprises Co. The portion of the first magnetic layer comprising Cr, Ta, Ti, W, Zr or Hf, if any, is less than 7.5 atomic % of the first magnetic layer (and preferably less than 5 atomic %). The second magnetic layer also comprises Co, and more than 7.5 atomic % of the second layer is Cr, Ta, Ti, W, Zr or Hf (and preferably more than 10 atomic %). We have discovered that the first and second magnetic layers can be made very thin without having a great reduction in coercivity.

REFERENCES:
patent: 5543221 (1996-08-01), Kitakami et al.
patent: 5580667 (1996-12-01), Lal
patent: 5605733 (1997-02-01), Ishikawa et al.
patent: 5693426 (1997-12-01), Lee

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of manufacturing a thin film magnetic recording medium ha does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of manufacturing a thin film magnetic recording medium ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of manufacturing a thin film magnetic recording medium ha will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1699849

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.