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:
Feb. 27, 1996
Filed:
Mar. 21, 1994
Yuuji Omata, Toyonaka, JP;
Tatsuo Mifune, Hirakata, JP;
Abstract
A magnetic thin film head having a laminated structure includes a non-magnetic substrate, a lower magnetic layer deposited on the non-magnetic substrate, a magnetic gap layer overlying the lower magnetic layer, at least two insulating layers overlying the magnetic gap layer, at least one electrically conductive layer interposed between the insulating layers, and an upper magnetic layer overlying the insulating layers. A magnetic core of the magnetic thin film head is made up of the upper and lower magnetic layers, at least one of which includes a plurality of magnetically soft layers plated with a metal alloy and a plurality of modified layers each interposed between two adjoining magnetically soft layers. The modified layers function to magnetostatically separate the magnetically soft layers. Each of the modified layers is made by introducing, during electroplating, an anodic dissolution process wherein a surface to be plated is temporarily used as an anode.