Title:
垂直磁気記録媒体及びその製造方法
Document Type and Number:
Japanese Patent JP4183541
Kind Code:
B2
Abstract:
Disclosed are a perpendicular magnetic recording medium with lower medium noise, insusceptible to thermal fluctuation and high recording resolution and a method of manufacturing it. As the step of forming a metal layer at the time of forming a recording layer on a non-magnetic substrate via a plurality of underlayers and the step of forming an oxide layer with an average thickness of 0.2 nm or less are repeated, the crystal grains are magnetically isolated without disturbing the orientation of the crystal grain of the recording layer of the perpendicular magnetic recording medium or without degrading the magnetic characteristic of the crystal grain of the recording layer.
Inventors:
Yoshiyuki Hirayama
Ichiro Tamai
Takayuki Ichihara
Hiroyuki Nakagawa
Hiroaki Nemoto
Mineaki Kodama
Ikuko Takekuma
Ichiro Tamai
Takayuki Ichihara
Hiroyuki Nakagawa
Hiroaki Nemoto
Mineaki Kodama
Ikuko Takekuma
Application Number:
JP2003089689A
Publication Date:
November 19, 2008
Filing Date:
March 28, 2003
Export Citation:
Assignee:
Hitachi Global Storage Technologies Co., Ltd.
International Classes:
G11B5/65; G11B5/851; G11B5/64; G11B5/84; G11B5/66
Domestic Patent References:
| JP8083418A | ||||
| JP2000276729A | ||||
| JP2002358615A | ||||
| JP2002020864A | ||||
| JP2001291230A |
Attorney, Agent or Firm:
Polaire Patent Business Corporation
Yasuo Sakuta
Yasuo Sakuta
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