The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1998
Filed:
Nov. 06, 1995
Applicant:
Inventors:
Li-Lien Lee, Pittsburgh, PA (US);
David N Lambeth, Pittsburgh, PA (US);
David E Laughlin, Pittsburgh, PA (US);
Byung-Ki Cheong, Seoul, KR;
Assignee:
Carnegie Mellon University, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428611 ; 428 653 ; 428336 ; 428471 ; 428668 ; 428673 ; 428674 ; 4286 / ; 4286 / ; 4286 / ; 428900 ; 360103 ; 360135 ;
Abstract
The present invention provides a longitudinal magnetic recording media having a substrate, a sputter deposited MgO seed layer, a Co or Co alloy based magnetic layer and an underlayer disposed between the seed layer and the magnetic layer comprised of Cr, a Cr alloy or a material having a B2 ordered crystalline structure, preferably NiAl or FeAl. A thin Cr or Cr alloy intermediate layer of about 1.0 nm to 5.0 nm thick may be positioned between the underlayer and the magnetic layer.