Invention Grant
- Patent Title: Bit patterned magnetic media
- Patent Title (中): 位图形磁介质
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Application No.: US11544634Application Date: 2006-10-10
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Publication No.: US08771848B2Publication Date: 2014-07-08
- Inventor: Erol Girt , Hans J. Richter , Alexander Y. Dobin
- Applicant: Erol Girt , Hans J. Richter , Alexander Y. Dobin
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: G11B5/66
- IPC: G11B5/66 ; B32B3/00

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 Ms ranging from about 1 to about 2,000 emu/cm3, preferably below about 400 emu/cm3, more preferably below about 200 emu/cm3, and may overlie, underlie, or at least partially fill spaces between adjacent magnetic elements.
Public/Granted literature
- US20080085425A1 Bit patterned magnetic media with exchange coupling between bits Public/Granted day:2008-04-10
Information query
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