JPS5698718A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5698718A JPS5698718A JP52980A JP52980A JPS5698718A JP S5698718 A JPS5698718 A JP S5698718A JP 52980 A JP52980 A JP 52980A JP 52980 A JP52980 A JP 52980A JP S5698718 A JPS5698718 A JP S5698718A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- recording medium
- hexagonal ferrite
- magnetic
- magnetic recording
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To offer a magnetic recording medium for vertical magnetizing recording of high density which provides the recording with low power consumption, by using ions of hexagonal ferrite with uniaxial anisotropy and extremely fine grains of a substituted body.
CONSTITUTION: A metallic magnetic layer of high magnetic permeability (permalloy, etc.) having ≥5,000G saturated magnetization and ≥50 magnetic permeability is provided as a substrate to a ≤50μm thickness by vapor deposition, electrodeposition, etc., and on it, a coating type vertical magnetizing recording layer is provided which is obtained by dispersing hexagonal ferrite having ≥2,000 θe coercive force and ≤0.3μm average grain size [formula I (A=Ba, Sr, Ca, Pd, etc., and M=Ti, Ge, etc.) or forula II (A=Ba, Sr, Ca, Pb, etc., and M=V, Nb, Sb, Ta, etc.)] into a binder such as resin.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52980A JPS5698718A (en) | 1980-01-09 | 1980-01-09 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52980A JPS5698718A (en) | 1980-01-09 | 1980-01-09 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5698718A true JPS5698718A (en) | 1981-08-08 |
Family
ID=11476295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52980A Pending JPS5698718A (en) | 1980-01-09 | 1980-01-09 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5698718A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61214128A (en) * | 1985-03-19 | 1986-09-24 | Tdk Corp | Magnetic recording medium |
-
1980
- 1980-01-09 JP JP52980A patent/JPS5698718A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61214128A (en) * | 1985-03-19 | 1986-09-24 | Tdk Corp | Magnetic recording medium |
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