Invention Grant
- Patent Title: Magnetic recording medium, magnetic recording apparatus and magnetic recording method
- Patent Title (中): 磁记录介质,磁记录装置和磁记录方法
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Application No.: US10946011Application Date: 2004-09-22
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Publication No.: US07330335B2Publication Date: 2008-02-12
- Inventor: Akira Kikitsu , Tadashi Kai , Junichi Akiyama
- Applicant: Akira Kikitsu , Tadashi Kai , Junichi Akiyama
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- Priority: JP2001-197771 20010629
- Main IPC: G11B5/127
- IPC: G11B5/127

Abstract:
A magnetic recording medium capable of alleviating thermal fluctuation and improving the recording density includes a functional layer (12) containing a magnetic material, and a recording layer (11) overlying the functional layer and containing a magnetic material. The recording layer contains a plurality of magnetic grains (51) and a nonmagnetic material (52) existing among the magnetic grains, and the functional layer and the recording layer exert exchange coupling interaction in a direction making a substantially orthogonal relation with each other at the room temperature.
Public/Granted literature
- US20050041335A1 Magnetic recording medium, magnetic recording apparatus and magnetic recording method Public/Granted day:2005-02-24
Information query
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