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. 02, 2014
Filed:
Jan. 31, 2012
Charanjit Singh Bhatia, Singapore, SG;
Koashal Kishor Mani Pandey, Singapore, SG;
Nikita Gaur, Singapore, SG;
Siegfried L. Maurer, Stormville, NY (US);
Ronald W. Nunes, East Falmouth, MA (US);
Charanjit Singh Bhatia, Singapore, SG;
Koashal Kishor Mani Pandey, Singapore, SG;
Nikita Gaur, Singapore, SG;
Siegfried L. Maurer, Stormville, NY (US);
Ronald W. Nunes, East Falmouth, MA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A magnetic data storage medium comprising: an ion doped magnetic recording layer having a continuous grading of coercivity or anisotropy, wherein the coercivity or anisotropy is at a minimum substantially at one side of the magnetic recording layer, and having substantial portion of maximum coercivity or anisotropy at the other side of the magnetic recording layer. Also, a method of fabricating a magnetic data storage medium is included.