发明授权
- 专利标题: A magnetic recording medium and its production method and a magnetic recording apparatus
- 专利标题(中): 一种磁记录介质,其制造方法和磁记录装置
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申请号: EP91113218.1申请日: 1991-08-06
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公开(公告)号: EP0472047B1公开(公告)日: 1997-10-29
- 发明人: Matsuda, Yoshibumi , Futamoto, Masaaki , Miyamura, Yoshinori , Takagaki, Tokuho , Takano, Hisashi , Kugiya, Fumio , Nakao, Takeshi , Akagi, Kyo , Suzuki, Mikio , Fukuoka, Hirotsugu , Munemoto, Takayuki
- 申请人: HITACHI, LTD.
- 申请人地址: 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 专利权人: HITACHI, LTD.
- 当前专利权人: HITACHI, LTD.
- 当前专利权人地址: 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 代理机构: Strehl Schübel-Hopf Groening & Partner
- 优先权: JP217048/90 19900820
- 主分类号: G11B5/66
- IPC分类号: G11B5/66 ; G11B5/716
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