Title:
MANUFACTURE OF MAGNETIC DISK
Document Type and Number:
Japanese Patent JP3836630
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic recording medium having a low noise and high performance by suppressing dispersion of crystal particle size of a magnetic film and micronizing the size and obtain a magnetic recording medium having a low noise low thermal fluctuation, low thermal magnetization and high reliability by suppressing the dispersion of crystal particle size.
SOLUTION: One kind of oxide selected from among CoO, Cr2O3, FeO, and NiO is dissolved in one kind of oxide selected from among SiO, Al2O3, TiO2, TaO2 and zinc oxide on the surface of a glass substrate. And after the substrate or thin film of an inorganic compound having a structure, wherein a crystalline particle of a solute substance having a honeycomb structure and regularly arranged is deposited in a boundary which encloses the solute substance, is formed by ECR method, a magnetic recording medium is formed. This substrate or thin film of the inorganic compound has a structure wherein one kind of oxide selected from among CoO, Cr2O3, FeO, and NiO is deposited as a crystalline particle and SiO, Al2O3, TiO2, TaO2 or zinc oxide constitutes the crystalline boundary.
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Inventors:
Fumiyoshi Kirino
Nobuyuki Inaba
Teruaki Takeuchi
Koichiro Wakabayashi
Tomoko Soya
Harumi Sakamoto
Go Onuma
Nobuyuki Inaba
Teruaki Takeuchi
Koichiro Wakabayashi
Tomoko Soya
Harumi Sakamoto
Go Onuma
Application Number:
JP18149399A
Publication Date:
October 25, 2006
Filing Date:
June 28, 1999
Export Citation:
Assignee:
Hitachi Maxell Co., Ltd.
International Classes:
G11B5/84; (IPC1-7): G11B5/84
Domestic Patent References:
| JP2001006165A | ||||
| JP10298749A | ||||
| JP10340441A | ||||
| JP11161934A |
Attorney, Agent or Firm:
Inage Satoshi