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:
Feb. 12, 1985
Filed:
Aug. 31, 1983
Applicant:
Inventors:
James Economy, San Jose, CA (US);
Anagnostis E Zachariades, Hillsborough, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
427130 ; 427128 ;
Abstract
A method for improving the durability, surface finish, and magnetic properties of a magnetic recording disk, the recording disk having a magnetic coating material with load bearing particles therein, by applying thereto a deformational force which exceeds the elastic limit of the coating material.