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:
Nov. 11, 2003
Filed:
Sep. 29, 1999
Applicant:
Inventor:
Bunsen Y. Wong, Los Gatos, CA (US);
Assignee:
Maxtor Corporation, Longmont, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/12 ; G11B 5/66 ; G11B 5/70 ;
U.S. Cl.
CPC ...
B05D 5/12 ; G11B 5/66 ; G11B 5/70 ;
Abstract
An underlayer ( A) of a magnetic recording medium ( ) includes first and second non-magnetic, chromium-based layers ( ), at least one of the first and second chromium-based layers being a chromium alloy. The lattice parameter of the composite underlayer is between the lattice parameters of the first and second chromium-based layers. Recognizing this permits one to predictably adjust the lattice parameter of the composite underlayer to be close to the lattice parameter of the magnetic layer ( ) so to optimize magnetic and parametric properties.