发明申请
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
-
申请号: US11201157申请日: 2005-08-11
-
公开(公告)号: US20060035114A1公开(公告)日: 2006-02-16
- 发明人: Sadamu Kuse , Kazuhiko Nakiri
- 申请人: Sadamu Kuse , Kazuhiko Nakiri
- 申请人地址: JP Ibaraki-shi
- 专利权人: HITACHI MAXELL, LTD.
- 当前专利权人: HITACHI MAXELL, LTD.
- 当前专利权人地址: JP Ibaraki-shi
- 优先权: JPP2004-235260 20040812
- 主分类号: G11B5/706
- IPC分类号: G11B5/706
摘要:
A magnetic recording medium with excellent high density recording performances and good durability comprising a non-magnetic substrate, a non-magnetic layer containing a non-magnetic powder and a binder formed on the non-magnetic substrate, and a magnetic layer having a thickness of less than 100 nm and containing a substantially particulate non-magnetic powder, a substantially particulate magnetic powder having an average particle size of less than 25 nm, and a binder, wherein an average particle size R of the non-magnetic powder contained in the magnetic layer and a thickness D of the magnetic powder satisfy the following relationship: 0.88≦R/D≦2.5.
公开/授权文献
- US08124256B2 Magnetic recording medium 公开/授权日:2012-02-28