Title:
磁気記録媒体及びその製造方法及び磁気記録再生装置
Document Type and Number:
Japanese Patent JP5422912
Kind Code:
B2
Abstract:
A magnetic recording medium includes a substrate; and a recording film formed on the substrate and including a main magnetic film, the main magnetic film where a recording area and a guard area are formed by local ion doping, the guard area having saturation magnetization smaller than saturation magnetization of the recording area. A primary layer is provided at a substrate side of the main magnetic film. A main ingredient of the primary layer is at least one kind of atom selected from a group consisting of Cr, B, Mo, Al, Si, and C.
Inventors:
Tsutomu Tanaka
Kenji Sato
Kenji Sato
Application Number:
JP2008118926A
Publication Date:
February 19, 2014
Filing Date:
April 30, 2008
Export Citation:
Assignee:
富士通株式会社
International Classes:
G11B5/738; G11B5/64; G11B5/65; G11B5/673; G11B5/851
Domestic Patent References:
| JP5205257A | ||||
| JP2002288813A | ||||
| JP2002359138A | ||||
| JP4102308A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Akinori Yamaguchi
Tadahiko Ito
Akinori Yamaguchi