发明授权
- 专利标题： Magnetic recording medium
- 专利标题（中）： 磁记录介质
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申请号： US149678申请日： 1988-01-28
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公开(公告)号： US4833020A公开(公告)日： 1989-05-23
- 发明人: Yoshihiro Shiroishi , Sadao Hishiyama , Hiroyuki Suzuki , Tomoyuki Ohno , Yoshibumi Matsuda , Kazumasa Takagi , Yoshio Gobara , Norikazu Tsumita , Masaki Ohura , Masaaki Hayashi
- 申请人： Yoshihiro Shiroishi , Sadao Hishiyama , Hiroyuki Suzuki , Tomoyuki Ohno , Yoshibumi Matsuda , Kazumasa Takagi , Yoshio Gobara , Norikazu Tsumita , Masaki Ohura , Masaaki Hayashi
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-17172 19870129
- 主分类号： G11B5/66
- IPC分类号： G11B5/66 ; G11B5/64 ; G11B5/65 ; G11B5/73 ; G11B5/738
摘要：
In a magnetic recording medium including an underlayer and a magnetic layer formed sequentially on a substrate, the underlayer is composed of a composite underlayer having an at least two-layered structure, the underlayer on the side of the substrate is made of a material providing low modulation to the magnetic recording medium while the underlayer on the side of the magnetic layer is made of a material providing a high S/N ratio to the medium. This makes it possible to obtain a magnetic recording medium having low modulation and high S/N ratio.
公开/授权文献
- USD266047S Decorative band for casserole holders or the like 公开/授权日：1982-09-07
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