发明公开
- 专利标题： Magnetic recording medium
- 专利标题（中）： 磁记录介质
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申请号： EP85113015.3申请日： 1985-10-14
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公开(公告)号： EP0179382A2公开(公告)日： 1986-04-30
- 发明人: Futamoto, Masaaki , Honda, Yukio , Asada, Seiichi , Nishimura, Takashi Hitachi Daini Kyoshinryo , Yoshida, Kazuetsu , Ishihara, Heigo
- 申请人： HITACHI, LTD. , Hitachi Maxell Ltd.
- 申请人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 100 JP
- 专利权人： HITACHI, LTD.,Hitachi Maxell Ltd.
- 当前专利权人： HITACHI, LTD.,Hitachi Maxell Ltd.
- 当前专利权人地址： 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 100 JP
- 代理机构： Strehl Schübel-Hopf Groening & Partner
- 优先权： JP221688/84 19841022; JP54419/85 19850320
- 主分类号： G11B5/64
- IPC分类号： G11B5/64 ; G11B5/72 ; G11B5/85
摘要：
A magnetic recording medium comprising a substrate, a ferromagnetic thin film formed on the substrate, and a protective film formed directly on the ferromagnetic thin film, and a process for producing such magnetic recording medium. The expression "formed directly" refers to the technique for forming the protective film on the ferromagnetic thin film so that the interface therebetween is free from contamination by, for instance, conducting the protective film formation under the vacuum used when forming the ferromagnetic thin film.
公开/授权文献
- EP0179382B1 Magnetic recording medium 公开/授权日：1992-03-04
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