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:
Sep. 13, 1988
Filed:
Dec. 24, 1985
Applicant:
Inventor:
Jacques Desserre, Rambouillet, FR;
Assignee:
Bull S.A. (Societe Anonyme), Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360123 ; 360126 ;
Abstract
A magnetic transducer for writing and reading data on a perpendicular recording carrier such as a magnetic disk includes a writing pole (MPOLI.sub.1) perpendicular to the recording carrier and a coil (BOBI.sub.1) magnetically coupled to a writing pole, each turn cross section of the coil being perpendicular to the carrier. The coil comprises a spiral with a flat development parallel to the carrier, disposed about and in the vicinity of the end of the writing pole (MPOLI.sub.1) that is located facing the carrier.