发明授权
- 专利标题： Magnetic recording medium and magnetic recording device
- 专利标题（中）： 磁记录介质和磁记录装置
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申请号： US10982198申请日： 2004-11-04
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公开(公告)号： US07514163B2公开(公告)日： 2009-04-07
- 发明人: Norikazu Nakamura , Tsukasa Itani , Yukiko Oshikubo , Shinichi Nakayama , Takashi Toyoguchi
- 申请人： Norikazu Nakamura , Tsukasa Itani , Yukiko Oshikubo , Shinichi Nakayama , Takashi Toyoguchi
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, Ltd.
- 优先权： JP2004-170275 20040608
- 主分类号： G11B5/66
- IPC分类号： G11B5/66
摘要：
A magnetic recording medium having excellent durability and corrosion resistance as well as a magnetic recording device equipped with the magnetic recording medium is provided. The protective layer of the magnetic recording medium is composed of two layers, that is, a lower layer contacting with the magnetic layer and an upper layer on the lower layer. The internal stress of the lower layer is made smaller than that of the upper layer, and the surface free energy of the lower layer is made smaller than that of the upper layer.
公开/授权文献
- US20050271902A1 Magnetic recording medium and magnetic recording device 公开/授权日：2005-12-08
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