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:
Jul. 09, 1996
Filed:
Jan. 03, 1994
Applicant:
Inventors:
James W Alpha, Corning, NY (US);
Nicholas F Borrelli, Elmira, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 642 ; 428 653 ; 428141 ; 428325 ; 428426 ; 428428 ; 428471 ; 428408 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ; 360133 ; 360135 ;
Abstract
This invention is directed to the fabrication of substrates for rigid information disks for use in a magnetic storage device, the surface of the substrate comprising a smooth area and a low friction area. Conveniently, the substrate will comprise a photonucleable glass wherein the low friction area will have a controlled textured surface.