发明授权
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
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申请号: US10725522申请日: 2003-12-03
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公开(公告)号: US07348079B2公开(公告)日: 2008-03-25
- 发明人: Yuichiro Murayama , Hiroshi Hashimoto
- 申请人: Yuichiro Murayama , Hiroshi Hashimoto
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2002-351123 20021203
- 主分类号: G11B5/706
- IPC分类号: G11B5/706
摘要:
A magnetic recording medium is provided that has on a non-magnetic support, in order, a radiation-cured layer formed by curing a layer containing a radiation curing compound by exposure to radiation, a lower layer having a non-magnetic powder and/or a magnetic powder dispersed in a binder, and at least one magnetic layer having a ferromagnetic powder dispersed in a binder. The binder of at least the magnetic layer is a binder having a glass transition temperature of 100° C. to 200° C., and the magnetic layer has on its surface a number of micro projections having a height of 10 to 20 nm measured by atomic force microscopy (AFM) of 5 to 1,000/100 μm2.
公开/授权文献
- US20040110038A1 Magnetic recording medium 公开/授权日:2004-06-10