JPS57120227A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS57120227A JPS57120227A JP56005461A JP546181A JPS57120227A JP S57120227 A JPS57120227 A JP S57120227A JP 56005461 A JP56005461 A JP 56005461A JP 546181 A JP546181 A JP 546181A JP S57120227 A JPS57120227 A JP S57120227A
- Authority
- JP
- Japan
- Prior art keywords
- base
- layer
- metal
- recording medium
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/735—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer characterised by the back layer
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To reduce discharge noise, etc., due to static electricity by providing a metallic magnetic thin film to one side of a base and by forming a conductive layer made of a high polymer compound with a protective layer on the other side. CONSTITUTION:On one side of a base 1, metal, such as Al, is formed into a base layer 2, a metallic magnetic thin film 3 is made of single metal or alloy, and on it, a protective film 4 is provided. The other side of the base, on the other hand, is back-coated with metal, such as Al, with high conductivity to about 300Angstrom thickness by vaccum deposition, ion plating, planting, etc., to form a conductive layer 5 for removing discharge noise, and on the layer 5, a protective film 6 of a high polymer compound is provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005461A JPS57120227A (en) | 1981-01-17 | 1981-01-17 | Magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56005461A JPS57120227A (en) | 1981-01-17 | 1981-01-17 | Magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57120227A true JPS57120227A (en) | 1982-07-27 |
Family
ID=11611860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56005461A Pending JPS57120227A (en) | 1981-01-17 | 1981-01-17 | Magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57120227A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60111334A (en) * | 1983-11-18 | 1985-06-17 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1981
- 1981-01-17 JP JP56005461A patent/JPS57120227A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60111334A (en) * | 1983-11-18 | 1985-06-17 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
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