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. 18, 2003
Filed:
May. 22, 2001
Applicant:
Inventors:
James M. Uhlik, Clarks Summit, PA (US);
Adam O'Ryan, Mountaintop, PA (US);
Horst Loch, Niederhausen, DE;
Holger Wegener, Alfeld, DE;
Assignee:
Schott Glass Technologies, Inc., Duryea, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B 1/706 ;
U.S. Cl.
CPC ...
C03B 1/706 ;
Abstract
Described are substrates for magnetic media which have excellent surface properties as prepared directly from a slot drawdown glass sheet forming process. The substrate blanks cut directly from the glass sheet, as drawn, require little or no surface treatment for use as substrates for magnetic media, particularly hard disk drives. Also described are methods for preparing such substrates and methods for preparing magnetic media therefrom. Further described are the substrates and magnetic media prepared by such processes.