发明公开
- 专利标题： Magnetic recording medium
- 专利标题（中）： 磁记录介质
-
申请号： EP03026644.9申请日： 2003-11-19
-
公开(公告)号： EP1431964A1公开(公告)日： 2004-06-23
- 发明人: Kato, Atsushi , Kagawa, Junji , Murakami, Hiroyuki , Koike, Fumiko
- 申请人： SONY CORPORATION
- 申请人地址： 7-35, Kitashinagawa 6-chome Shinagawa-ku Tokyo JP
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： 7-35, Kitashinagawa 6-chome Shinagawa-ku Tokyo JP
- 代理机构： Müller - Hoffmann & Partner
- 优先权： JP2002367894 20021219; JP2002367893 20021219
- 主分类号： G11B5/716
- IPC分类号： G11B5/716 ; G11B5/702
摘要：
A magnetic recording medium includes a non-magnetic support, a first magnetic layer and a second magnetic layer on which magnetic paints made of different ferromagnetic materials are applied in order of the first mmagnetic layer and the second magnetic layer on the non-magnetic support. Both the first magnetic layer and the second magnetic layer include polyester polyol having an alicyclic framework and a polyurethane resin composed of diisocyanate.
公开/授权文献
- EP1431964B1 Magnetic recording medium 公开/授权日：2007-01-03
信息查询
IPC分类:
