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:
May. 06, 1986
Filed:
Oct. 25, 1982
Applicant:
Inventors:
George W Brock, Los Altos Hills, CA (US);
George J Hampton, Belmont, CA (US);
Assignee:
Verbatim Corp., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428216 ; 360134 ; 360135 ; 427128 ; 427131 ; 427132 ; 428336 ; 428329 ; 428422 ; 428447 ; 428694 ; 428695 ; 428900 ;
Abstract
A flexible magnetic recording media, such as disks or magnetic tape, having a non-magnetic layer intermediate the substrate and magnetic recording layers providing improved durability of the magnetic recording layer including a binder comprised of non-magnetic particles of .alpha.Fe.sub.2 O.sub.3 with similar physical properties as those of the magnetic recording layer (.gamma.Fe.sub.2 O.sub.3 or Co-.gamma.Fe.sub.2 O.sub.3) and a reservoir of lubricant.