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:
Nov. 25, 1986
Filed:
Jan. 06, 1983
Applicant:
Inventor:
Norio Shibata, Sagamihara, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360121 ; 360125 ;
Abstract
A multi-track magnetic head comprises a first core half having a plurality of thin film cores made by thin film forming technique, and a second core half having a plurality of block cores and a plurality of block spacers which are stacked in advance. The first and second core halves are assembled so that they face each other. Each of the block cores has a U-shaped recess so that the block core is spaced from the thin film core except for both ends thereof. A coil of each head may be made of spiral coil pattern conductive layer deposited on the thin film core with an interposition of an insulating film, or may be a wire wound around the body of the block core.