发明授权
- 专利标题： Magnetic recording member
- 专利标题（中）： 磁记录部件
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申请号： US414235申请日： 1989-09-29
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公开(公告)号： US5069983A公开(公告)日： 1991-12-03
- 发明人: Kyuzo Nakamura , Yoshifumi Ota , Michio Ishikawa , Noriaki Tani , Masanori Hashimoto , Yuzo Murata
- 申请人： Kyuzo Nakamura , Yoshifumi Ota , Michio Ishikawa , Noriaki Tani , Masanori Hashimoto , Yuzo Murata
- 申请人地址： JPX Chigasaki
- 专利权人： Nihon Shinku Gijutsu Kabushiki Kaisha
- 当前专利权人： Nihon Shinku Gijutsu Kabushiki Kaisha
- 当前专利权人地址： JPX Chigasaki
- 优先权： JPX63-307003 19881206; JPX1-117191 19890512; JPX1-190648 19890725
- 主分类号： G11B5/73
- IPC分类号： G11B5/73 ; G11B5/738
摘要：
A magnetic recording member having high coercive force, comprising:(a) a non-magnetic substrate;(b) a Cr base film formed on said substrate by a film forming process; and(c) a Co alloy film formed on said Cr base film by the same film forming process as in (b),wherein said Cr base film contains in addition to Cr at least one additional element selected from the group consisting of rare earth elements, Si, Cu, P and Ge, and wherein said Co alloy film is formed by continuous operation of said film forming process without interruption after completion of the formation of said Cr base film.
公开/授权文献
- US5735939A Pigment preparation for anti-corrosion coating material 公开/授权日：1998-04-07
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