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:
Dec. 05, 2000
Filed:
Sep. 06, 1995
Applicant:
Inventors:
Hideyuki Kikuchi, Kanagawa, JP;
Kazuo Kobayashi, Kanagawa, JP;
Hitoshi Kishi, Kanagawa, JP;
Mitsuru Otagiri, Kanagawa, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
36032411 ;
Abstract
A spin valve magnetoresistive head includes a first soft magnetic layer and a second soft magnetic layer having larger internal stress than that of the first magnetic layer. The larger internal stress of the second soft magnetic layer is created by injecting the second soft magnetic layer with a selected type of ion. Also included in the head is a nonmagnetic layer formed between the first soft magnetic layer and the second soft magnetic layer.