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. 11, 2015
Filed:
Apr. 09, 2013
Applicant:
Fuji Electric Co., Ltd., Kawasaki, JP;
Inventor:
Yuko Nakamata, Matsumoto, JP;
Assignee:
FUJI ELECTRIC CO., LTD., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/66 (2006.01); G11B 5/72 (2006.01); G11B 5/84 (2006.01);
U.S. Cl.
CPC ...
G11B 5/722 (2013.01); G11B 5/72 (2013.01); G11B 5/8408 (2013.01);
Abstract
A magnetic recording medium and related method of manufacturing a magnetic recording medium that has a protective layer for the magnetic recording medium and that exhibits excellent corrosion resistance in the protective layer. The magnetic recording medium includes on a nonmagnetic substrate a magnetic layer and a protective layer formed on the magnetic layer. The protective layer is formed of a lower layer in contact with the magnetic layer and an upper layer formed on the lower layer. The material used in the lower layer is a metal having a standard electrode potential of −0.8 to 0.3 V.