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:
Apr. 14, 1998
Filed:
Dec. 16, 1993
Applicant:
Inventors:
Brij B Lal, San Jose, CA (US);
Tadashi Shinohara, Freemont, CA (US);
Assignee:
HMT Technology Corporation, Fremont, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428611 ; 428212 ; 428216 ; 428336 ; 428635 ; 428667 ; 428678 ; 428680 ; 428681 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ; 428408 ;
Abstract
A low-noise, thin-film magnetic recording medium, and method of making the same, are disclosed. The medium has a multilayer magnetic-film construction, where the individual magnetic-film layers are isolated by a thin ferromagnetic film. The ferromagnetic layer is effective to reduce the medium noise and increase medium signal-to-noise ratio at least as much as a Cr isolation having the same isolation-layer thickness, but with substantially less reduction in overwrite.