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:
Oct. 12, 1976
Filed:
Jan. 27, 1975
Applicant:
Inventor:
Richard E Fayling, White Bear Lake, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360-2 ; 360131 ; 235 / ; 235 / ; 3401 / ;
Abstract
A magnetic recording medium having uniaxially highly anisotropic particles with an easy axis intrinsic coercive force of less than 1900 oersteds. Also disclosed is a machine readable magnetically encoded document employing the medium of the present invention and an apparatus for reading such document and validating the same.