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:
Jan. 27, 1987
Filed:
Feb. 17, 1984
Applicant:
Inventor:
Kunihide Sakai, Ebina, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360125 ; 360110 ; 360122 ;
Abstract
A magnetic head for perpendicular magnetization has a pair of first and second blocks each composed of a nonmagnetic body and a ferromagnetic yoke joined together, a thin ferromagnetic film sandwiched between the first and second blocks, a coil wound around the thin film and the yoke of the first block, and a third ferromagnetic block attached to the first block remotely from the thin film and the second block. In a playback mode, a closed magnetic path is formed through a magnetic recording medium, the thin film, the yoke of the first block, and the third block.