Invention Grant
- Patent Title: Magnetic recording medium and method of manufacturing the same
- Patent Title (中): 磁记录介质及其制造方法
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Application No.: US12239937Application Date: 2008-09-29
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Publication No.: US07960045B2Publication Date: 2011-06-14
- Inventor: Katsuhiko Meguro , Masatoshi Takahashi
- Applicant: Katsuhiko Meguro , Masatoshi Takahashi
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-256665 20070928
- Main IPC: G11B5/62
- IPC: G11B5/62 ; B05D5/12 ; C08F2/46

Abstract:
An aspect of the present invention relates to a magnetic recording medium comprising a coating layer on a nonmagnetic support, wherein the coating layer comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order, the nonmagnetic support comprises a main component in the form of a resin obtained by mixing and/or copolymerizing a polyester and a polymer having compatibility with the polyester, has a glass transition temperature of equal to or higher than 80° C. but less than 125° C., and has a heat absorption peak, based on enthalpy relaxation, ranging from 0.5 to 2.0 J/g. Another aspect of the present invention relates to a method of manufacturing a magnetic recording medium.
Public/Granted literature
- US20090087686A1 MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2009-04-02
Information query
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