Title:
磁気ディスク及びその製造方法
Document Type and Number:
Japanese Patent JP5453666
Kind Code:
B2
Abstract:
Provided is a magnetic disk that is excellent in durability, particularly in LUL durability and CFT properties, and thus has high reliability despite the low flying height of a magnetic head following the rapid increase in recording density in recent years and despite the very strict environmental resistance following the diversification of applications. A magnetic disk (10) has at least a magnetic layer (6), a carbon-based protective layer (7), and a lubricating layer (8) provided in this order over a substrate (1). The lubricating layer (8) contains a compound having a perfluoropolyether main chain in a structure thereof and having a polar group other than at ends of a molecule thereof.
Inventors:
Hama Katsushi Kubo
Kae Ito
Kae Ito
Application Number:
JP2008088951A
Publication Date:
March 26, 2014
Filing Date:
March 30, 2008
Export Citation:
Assignee:
Dublin Media Singapore Private Limited
International Classes:
G11B5/725; C10M105/54; C10M107/38; C10M177/00; G11B5/72; G11B5/84; C10N20/04; C10N30/00; C10N30/06; C10N40/18; C10N70/00
Domestic Patent References:
| JP8319492A | ||||
| JP2008047284A | ||||
| JP7326042A | ||||
| JP1271908A | ||||
| JP2007284659A | ||||
| JP2003162810A |
Foreign References:
| WO2004031261A1 |
Attorney, Agent or Firm:
Takeshi Otsuka