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:
Mar. 19, 2002
Filed:
Jan. 20, 1999
Applicant:
Inventors:
Ming M. Yang, San Jose, CA (US);
Zhangmin Wang, Mountain View, CA (US);
James L. Chao, Milpitas, CA (US);
Michael A. Russak, Pleasanton, CA (US);
Assignee:
HMT Technology Corporation, Freemont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ; B32B 3/02 ; B32B 9/00 ;
U.S. Cl.
CPC ...
G11B 5/66 ; G11B 5/70 ; B32B 3/02 ; B32B 9/00 ;
Abstract
Protective overlayers for magnetic recording media are described. The overlayers, composed of a transition metal-silicon or transition metal-germanium interlayer and a carbon overcoat, provide good wear resistance and corrosion resistance at thicknesses of less than 100 Å.