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:
Jul. 13, 1993
Filed:
Oct. 02, 1991
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
427131 ; 29603 ; 360119 ; 360127 ; 427132 ;
Abstract
A method for manufacturing a magnetic head of a metal-in-gap type in which a soft magnetic film is provided in a gap of a ferrite core comprising the steps of: forming a first layer comprising a metallic magnetic film containing nitrogen on magnetic ferrite; forming a second layer comprising a metallic magnetic film containing nitrogen in an amount less than said first layer; and forming a third layer comprising a metallic magnetic film containing nitrogen in an amount more than said second layer.