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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.:

US 5792546 B1

PDFFull Text
Date of Patent:
Aug. 11, 1998

Filed:

Aug. 12, 1994

Magneto-resistive head and method of producing the same

Applicant:
Inventors:

Michiaki Kanamine, Kawasaki, JP;

Hitoshi Kanai, Kawasaki, JP;

Junichi Kane, Kawasaki, JP;

Junzo Toda, Kawasaki, JP;

Yuji Uehara, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:

Armstrong, Westerman, Hattori, McLeland & Naughton

Primary Examiner:

Leszek Kiliman

Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428212 ; 428213 ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 4286 / ; 428900 ; 360110 ; 360113 ; 324252 ; 148100 ;
Abstract

A magneto-resistive head is provided with a substrate, a lower shield layer made of a Fe-system magnetic material and provided above the substrate, and a non-magnetic insulator layer provided above the lower shield layer. The non-magnetic insulator layer has a function of suppressing deterioration of surface roughness of the lower shield layer when subjected to an annealing process under a magnetic field in order to improve magnetic characteristics of the lower shield layer to desired magnetic characteristics.

Find Patent Forward Citations

Kanamine, Michiaki. (1998). Magneto-resistive head and method of producing the same (U.S. Patent No. 5792546). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5792546

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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