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:
Apr. 12, 1988
Filed:
Dec. 20, 1985
Jacques Desserre, Paris, FR;
Bull, S.A., Paris, FR;
Abstract
A magnetic transducer is proposed for transverse recording on at least one track (PI.sub.1) of a data carrier (SMI.sub.1), comprising a magnetic circuit embodied by at least one writing pole (DCI.sub.1) coupled with a coil (BOBI.sub.1). According to the invention, the writing pole is a central pole surrounded by two auxiliary lateral poles (PLI.sub.1.1 and PLI.sub.1.2), separated from each of them by an air gap (ENI.sub.1, ENI.sub.2) such that the central pole records each cell of a given track with a given direction of magnetization, and the auxiliary poles record, on both sides of this cell, two lateral cells the magnetization of which is parallel and in the same direction and is opposite that of the central cell. The invention is applicable to magnetic disks.