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:
Aug. 15, 2006
Filed:
Jul. 23, 2002
Applicants:
Katsuro Watanabe, Odawara, JP;
Kikuo Kusukawa, Yoshikawa, JP;
Kenichi Meguro, Matsuda, JP;
Inventors:
Assignee:
Hitachi Global Storage Technologies Japan, Ltd., Odawara, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetoresistive head of CPP structure in which an insulating protective filmcovers at least part of the boundary between the lower shield layerand the non-magnetic filmadjacent thereto so as to reduce the area of the lower shield layer which is exposed on the surface of the substrate when the magnetoresistive film is patterned. This construction minimizes damage that occurs when the magnetoresistive film is patterned and also reduces the fraction defective due to current leakage across the upper and lower shields.