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. 23, 1976
Filed:
Apr. 25, 1975
Ami E Berkowitz, Schenectady, NY (US);
Joseph A Lahut, Scotia, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Recording head current in magnetic printing systems is reduced by application of a direct current magnetic bias field. The bias and recording fields add to produce a sum field with sufficient strength to switch a premagnetized recording medium. The bias field may be applied directly to the surface of the recording medium or may be concentrated at the recording medium surface by pin poles. In one embodiment of the invention the bias field is supplied by a permanent magnet common pole in a pin pole-type recording head array.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile