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:
Jan. 08, 2002
Filed:
Dec. 27, 2000
Applicant:
Inventors:
Shun-ichi Narumi, Hitachi, JP;
Hiroshi Fukui, Hitachi, JP;
Katsumi Hoshino, Hitachi, JP;
Katsuo Watanabe, Kanasagou-machi, JP;
Kazue Kudo, Hitachi, JP;
Moriaki Fuyama, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/127 ; G11B 5/147 ;
U.S. Cl.
CPC ...
G11B 5/127 ; G11B 5/147 ;
Abstract
A magnetoresistive effect type reproducing head is formed by stacking a lower magnetic shield made of magnetic material, a lower inter-layer insulation film, a magnetoresistive effect type element for detecting magnetic field by using a magnetoresistive effect, an upper inter-layer insulation film, and an upper magnetic shield made of magnetic material, on a substrate in this order, wherein a resistivity of at least one of the lower and upper magnetic shields is more than 200 &mgr;&OHgr;·cm.