JPS5634139A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5634139A JPS5634139A JP10604079A JP10604079A JPS5634139A JP S5634139 A JPS5634139 A JP S5634139A JP 10604079 A JP10604079 A JP 10604079A JP 10604079 A JP10604079 A JP 10604079A JP S5634139 A JPS5634139 A JP S5634139A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- magnetic substance
- magnetic
- substance
- metal
- 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
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE: To decrease the noise and to make constant the reproduced output even with different running direction, by plurally forming the ground layer of nonmagnetic substance of high melting point on the substrate and forming the direction of injection of vapor deposition of magnetic substance layer corresponding to it alternately.
CONSTITUTION: On the magnetic recording substrate 1 such as synthetic resin-made tape, the ground layer 2 is formed by evaporating the nonmagnetic substance of higher melting point than the magnetic metal or alloy, and the magnetic substance metal layer 3 is formed on it by evaporating the specified magnetic substance metal or alloy with tilt injection. A plurality of the ground layer 2 and the magnetic substance layer 3 are sequentially formed and constitution is made that the direction of tilt vapor-deposited layer of the magnetic substance layer 3 can be made different every layer alternately. Thus, at reproduction, the output difference is almost absent depending on either running direction, the noise is reduced and excellent effect can be obtained at the reciprocating running of tape.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10604079A JPS5634139A (en) | 1979-08-22 | 1979-08-22 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10604079A JPS5634139A (en) | 1979-08-22 | 1979-08-22 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5634139A true JPS5634139A (en) | 1981-04-06 |
| JPH026130B2 JPH026130B2 (en) | 1990-02-07 |
Family
ID=14423517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10604079A Granted JPS5634139A (en) | 1979-08-22 | 1979-08-22 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5634139A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143730A (en) * | 1981-03-02 | 1982-09-06 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPS60103969A (en) * | 1983-11-11 | 1985-06-08 | 日本メデイカルエンジニアリング株式会社 | Blood dialytic method and apparatus |
| US4539264A (en) * | 1982-10-12 | 1985-09-03 | Sony Corporation | Magnetic recording medium |
| JPH01178119A (en) * | 1988-01-06 | 1989-07-14 | Nippon Sheet Glass Co Ltd | Magnetic recording medium |
| JPH02152007A (en) * | 1988-12-02 | 1990-06-12 | Tdk Corp | Magnetic recording medium |
-
1979
- 1979-08-22 JP JP10604079A patent/JPS5634139A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57143730A (en) * | 1981-03-02 | 1982-09-06 | Fuji Photo Film Co Ltd | Magnetic recording medium |
| JPH0221046B2 (en) * | 1981-03-02 | 1990-05-11 | Fuji Photo Film Co Ltd | |
| US4539264A (en) * | 1982-10-12 | 1985-09-03 | Sony Corporation | Magnetic recording medium |
| JPS60103969A (en) * | 1983-11-11 | 1985-06-08 | 日本メデイカルエンジニアリング株式会社 | Blood dialytic method and apparatus |
| JPS6355944B2 (en) * | 1983-11-11 | 1988-11-04 | Nippon Medeikaru Enjiniaringu Kk | |
| JPH01178119A (en) * | 1988-01-06 | 1989-07-14 | Nippon Sheet Glass Co Ltd | Magnetic recording medium |
| JPH02152007A (en) * | 1988-12-02 | 1990-06-12 | Tdk Corp | Magnetic recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH026130B2 (en) | 1990-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5634139A (en) | Magnetic recording medium | |
| JPS52122213A (en) | Production of ferromagnetic metal powder | |
| JPS53116115A (en) | Magnetic recording medium | |
| ATE17411T1 (en) | INFORMATION-RECORDING MATERIAL. | |
| JPS54143111A (en) | Magnetic recording medium | |
| EP0504416A4 (en) | Polyester film for magnetic recording media | |
| JPS5634138A (en) | Magnetic recording medium | |
| JPS5387706A (en) | Manufacture of magnetic recording medium | |
| JPS57164433A (en) | Magnetic recording medium and its manufacture | |
| JPS5361310A (en) | Production of magnetic recording medium | |
| US4563396A (en) | Magnetic recording medium | |
| JPS5634143A (en) | Magnetic recording medium | |
| JPS54141107A (en) | Magnetic recording medium | |
| JPS5792401A (en) | Magnetic recording and reproducing method | |
| JPS5319004A (en) | Magnetic recording element | |
| JPS53132310A (en) | Production of magnetic recording media | |
| JPS57167126A (en) | Production for magnetic recording medium | |
| JPS57138058A (en) | Manufacture for magnetic recording medium | |
| JPS55163630A (en) | Magnetic recording medium | |
| JPS567238A (en) | Production of magnetic recording medium | |
| JPS54143116A (en) | Magnetic recording medium | |
| JPS5584043A (en) | Magnetic recording medium | |
| JPS54141607A (en) | Metal thin film type magnetic recording medium | |
| JPS57141028A (en) | Magnetic recording medium | |
| JPS5256509A (en) | Magnetic recording material |