JPS5727426A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5727426A JPS5727426A JP10055680A JP10055680A JPS5727426A JP S5727426 A JPS5727426 A JP S5727426A JP 10055680 A JP10055680 A JP 10055680A JP 10055680 A JP10055680 A JP 10055680A JP S5727426 A JPS5727426 A JP S5727426A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- molecular film
- magnetic thin
- metallic magnetic
- thin film
- 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.)
- Granted
Links
- 239000002120 nanofilm Substances 0.000 abstract 3
- 230000002787 reinforcement Effects 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- 239000004962 Polyamide-imide Substances 0.000 abstract 1
- 239000004642 Polyimide Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004760 aramid Substances 0.000 abstract 1
- 229920003235 aromatic polyamide Polymers 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 230000008602 contraction Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920002312 polyamide-imide Polymers 0.000 abstract 1
- 229920006267 polyester film Polymers 0.000 abstract 1
- 229920001721 polyimide Polymers 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 238000007740 vapor deposition Methods 0.000 abstract 1
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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
Landscapes
- Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
Abstract
PURPOSE:To increase not only the stability of measurement but the surface smoothness of a metallic magnetic thin film layer, by adding a reinforcement layer to a specific support layer. CONSTITUTION:A metallic magnetic thin film layer is formed by vapor deposition, sputtering or the like process on a single surface of an organic high-molecular film made of such material as the total aromatic polyimide, total aromatic polyamide, polyparabanic acid, polyamide-imide, etc. that has the <=5% heat contraction factor in all directions at 250 deg.C and has no fusing point. At the same time, a reinforcement layer like a polyester film, an aluminum plate, or the like having a higher rigidity than the above-mentioned organic high-molecular film is provided on the other surface of the said high molecular film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10055680A JPS5727426A (en) | 1980-07-24 | 1980-07-24 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10055680A JPS5727426A (en) | 1980-07-24 | 1980-07-24 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5727426A true JPS5727426A (en) | 1982-02-13 |
| JPH0243251B2 JPH0243251B2 (en) | 1990-09-27 |
Family
ID=14277202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10055680A Granted JPS5727426A (en) | 1980-07-24 | 1980-07-24 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5727426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60151830A (en) * | 1984-01-20 | 1985-08-09 | Fuji Photo Film Co Ltd | Magnetic recording medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965805A (en) * | 1972-10-23 | 1974-06-26 | ||
| JPS5086303A (en) * | 1973-11-19 | 1975-07-11 | ||
| JPS551651A (en) * | 1978-06-19 | 1980-01-08 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
-
1980
- 1980-07-24 JP JP10055680A patent/JPS5727426A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965805A (en) * | 1972-10-23 | 1974-06-26 | ||
| JPS5086303A (en) * | 1973-11-19 | 1975-07-11 | ||
| JPS551651A (en) * | 1978-06-19 | 1980-01-08 | Matsushita Electric Ind Co Ltd | Magnetic recording medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60151830A (en) * | 1984-01-20 | 1985-08-09 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPH0473214B2 (en) * | 1984-01-20 | 1992-11-20 | Fuji Photo Film Co Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0243251B2 (en) | 1990-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57130243A (en) | Information storage medium | |
| JPS56153534A (en) | Magnetic recording medium | |
| JPS5727426A (en) | Magnetic recording medium | |
| JPS54141107A (en) | Magnetic recording medium | |
| JPS5342009A (en) | Preparation of magnetic recording medium | |
| JPS5694520A (en) | Magnetic recording medium | |
| JPS5737720A (en) | Magnetic recording medium and its manufacture | |
| JPS647325A (en) | Production of magnetic recording medium | |
| JPS5724025A (en) | Magnetic recording substance | |
| JPS6476420A (en) | Magnetic recording medium | |
| JPS57169925A (en) | Magnetic recording medium | |
| JPS57167126A (en) | Production for magnetic recording medium | |
| KR880009342A (en) | Improved thermomagnetic replication method and magnetic tape | |
| JPS6446221A (en) | Magnetic disk | |
| KR860003587A (en) | Magnetic recording medium and manufacturing method thereof | |
| JPS54152084A (en) | Polyester laminated film | |
| JPS57130247A (en) | Manufacture of magnetooptic recording medium | |
| JPS5680831A (en) | Producing device for magnetic recording medium | |
| JPS5616939A (en) | Magnetic recording medium | |
| JPS57138058A (en) | Manufacture for magnetic recording medium | |
| KR870004416A (en) | Magnetic recording medium | |
| JPS57127928A (en) | Metallic thin film magnetic recording medium | |
| JPS567232A (en) | Production of magnetic recording medium | |
| JPS647324A (en) | Production of magnetic recording medium | |
| JPS576440A (en) | Manufacture of magnetic recording medium |