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:
Apr. 13, 2010
Filed:
Oct. 19, 2006
Applicants:
Hiroyuki Hoshiya, Kanagawa, JP;
Katsumi Hoshino, Kanagawa, JP;
Kenichi Meguro, Kanagawa, JP;
Yo Sato, Kanagawa, JP;
Hiroyuki Katada, Kanagawa, JP;
Inventors:
Hiroyuki Hoshiya, Kanagawa, JP;
Katsumi Hoshino, Kanagawa, JP;
Kenichi Meguro, Kanagawa, JP;
Yo Sato, Kanagawa, JP;
Hiroyuki Katada, Kanagawa, JP;
Assignee:
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spin-valve type magnetic head which has sufficiently high output is provided. In one embodiment, a structure in which high output coexists with high stability is achieved by letting a GMR-effect and a current-path-confinement effect manifest themselves at the same time in a GMR-screen layer consisting of a ferromagnetic metal spike-like part and a half-covering oxide layer.