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. 19, 1991
Filed:
Jun. 26, 1990
Applicant:
Inventors:
Shinichi Nanjyo, Miyagi, JP;
Masahiko Yamazaki, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
29603 ; 360121 ;
Abstract
A method for manufacture of a bulk-type magnetic head capable of performing a frame recording operation. A pair of magnetic core blocks with magnetic gaps formed in butt surfaces thereof are slit and comb-toothed to produce a pair of head element couplers, and such element couplers are joined to each other in a state where the comb-toothed portions of one coupler are inserted into the slits in the other coupler while the respective coupling portions are butted to each other, whereby the in-line precision of the magnetic gaps can be enhanced.