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:
Jul. 08, 2014
Filed:
Oct. 10, 2006
Erol Girt, Fremont, CA (US);
Hans J. Richter, Palo Alto, CA (US);
Alexander Y. Dobin, Milpitas, CA (US);
Erol Girt, Fremont, CA (US);
Hans J. Richter, Palo Alto, CA (US);
Alexander Y. Dobin, Milpitas, CA (US);
Seagate Technology LLC, Cupertino, CA (US);
Abstract
A bit patterned magnetic recording medium, comprises a non-magnetic substrate having a surface; a plurality of spaced apart magnetic elements on the surface, each of the elements constituting a discrete magnetic domain or bit; and a layer of a ferromagnetic material for regulating magnetic exchange coupling between said magnetic elements. The layer has a saturation magnetization Mranging from about 1 to about 2,000 emu/cm, preferably below about 400 emu/cm, more preferably below about 200 emu/cm, and may overlie, underlie, or at least partially fill spaces between adjacent magnetic elements.