发明授权
- 专利标题: A multilayered vertical magnetic recording medium
- 专利标题(中): 多层垂直磁记录介质
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申请号: EP87105875.6申请日: 1987-04-22
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公开(公告)号: EP0243860B1公开(公告)日: 1992-07-15
- 发明人: Ahlert, Richard Henry , Howard, James Kent , Lim, Grace Su
- 申请人: International Business Machines Corporation
- 申请人地址: Old Orchard Road Armonk, N.Y. 10504 US
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: Old Orchard Road Armonk, N.Y. 10504 US
- 代理机构: Atchley, Martin John Waldegrave
- 优先权: US857206 19860429
- 主分类号: G11B5/70
- IPC分类号: G11B5/70 ; G11B5/66
公开/授权文献
- EP0243860A3 A multilayered vertical magnetic recording medium 公开/授权日:1989-10-11
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