JPS5634149A - Manufacture of magnetic recording medium - Google Patents
Manufacture of magnetic recording mediumInfo
- Publication number
- JPS5634149A JPS5634149A JP10830779A JP10830779A JPS5634149A JP S5634149 A JPS5634149 A JP S5634149A JP 10830779 A JP10830779 A JP 10830779A JP 10830779 A JP10830779 A JP 10830779A JP S5634149 A JPS5634149 A JP S5634149A
- Authority
- JP
- Japan
- Prior art keywords
- film
- metal
- recording medium
- copper
- alkail
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0005—Separation of the coating from the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To obtain the recording medium excellent in the magnetic characteristics, by separating film through the immersion to water, after the vacuum deposition of alkail metal on the film and forming the ferromagnetic thin film layer on the substrate vapor-deposited with the copper. CONSTITUTION:Under vacuum, the alkail metal or alkail earth metal is vapor- deposited on the plastic film to form the metal film and the copper substrate is formed by the vapor deposition of copper 1-20mum thick. After the ferromagnetic thin film layer on the copper substrate through the vapor deposition of specified ferromagnetic material, it is immersed in water, then the metal film formed on the film is dissolved as alkali hydroxide and the film can easily be peeled off from the copper substrate. With this method, the ferromagnetic thin film layer excellent in the surface smoothness is formed and the magnetic characteristics of recording medium can be increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10830779A JPS5634149A (en) | 1979-08-25 | 1979-08-25 | Manufacture of magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10830779A JPS5634149A (en) | 1979-08-25 | 1979-08-25 | Manufacture of magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5634149A true JPS5634149A (en) | 1981-04-06 |
Family
ID=14481377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10830779A Pending JPS5634149A (en) | 1979-08-25 | 1979-08-25 | Manufacture of magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5634149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308405B1 (en) | 1990-02-07 | 2001-10-30 | Canon Kabushiki Kaisha | Process for preparing an electrode substrate |
-
1979
- 1979-08-25 JP JP10830779A patent/JPS5634149A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308405B1 (en) | 1990-02-07 | 2001-10-30 | Canon Kabushiki Kaisha | Process for preparing an electrode substrate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5671821A (en) | Substrate for magnetic disc and its manufacture | |
| JPS57167162A (en) | Production for gimbals spring for magnetic head | |
| JPS544968A (en) | Production of molded plastic article having thin metallic film | |
| KR850000305A (en) | Stamper and method for injection molding information-containing member | |
| JPS54140505A (en) | Production of magnetic recording medium | |
| JPS5784115A (en) | Manufacture of magnetic thin film | |
| JPS6413217A (en) | Magnetic recording medium and its production | |
| JPS575372A (en) | Thin film diode and manufacture thereof | |
| JPS57189852A (en) | Production of gravure plate | |
| JPS57138035A (en) | Magnetic recording medium | |
| JPS57105838A (en) | Photo-thermal magnetic recording medium | |
| JPS5634150A (en) | Manufacture of magnetic recording medium | |
| JPS5419200A (en) | Magnetic recording medium process | |
| JPS57138059A (en) | Manufacture for magnetic recording medium | |
| JPS54143116A (en) | Magnetic recording medium | |
| JPS57138033A (en) | Magnetic recording medium | |
| JPS5680831A (en) | Producing device for magnetic recording medium | |
| JPS57105839A (en) | Photo-thermal magnetic recording medium | |
| JPS57123534A (en) | Manufacture of metallic thin-film type magnetic recording medium | |
| JPS52149105A (en) | Preparation of magnetic disc with high recording density | |
| GB1013581A (en) | Improvements in or relating to the production of matrices suitable for the formationof metal mesh | |
| JPS52149104A (en) | Preparation of magnetic disc with high recording density | |
| JPS56127928A (en) | Magnetic recording medium | |
| JPS5534651A (en) | Structure of primary layer of plated film | |
| JPS57200941A (en) | Magnetic recording medium |