发明授权
- 专利标题： Master information carrier for magnetic transfer
- 专利标题（中）： 磁传输主信息载体
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申请号： US10770573申请日： 2004-02-04
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公开(公告)号： US07477463B2公开(公告)日： 2009-01-13
- 发明人: Tadashi Yasunaga , Masakazu Nishikawa
- 申请人： Tadashi Yasunaga , Masakazu Nishikawa
- 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： JP2003-027095 20030204
- 主分类号： G11B5/86
- IPC分类号： G11B5/86
摘要：
A master information carrier has on its surface a signal area where an embossed pattern formed by protruding portions and recessed portions and representing a signal pattern to be transferred has been formed. The shortest bit length of the embossed patter is 300 nm or shorter, and the embossed pattern is formed so that the total of the areas of the upper surfaces of the protruding portions of the embossed pattern is smaller than the total of the areas of inter-protruding-portions in the signal area.
公开/授权文献
- US20040156135A1 Master information carrier for magnetic transfer 公开/授权日：2004-08-12
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