JPS5421309A - Production of magnetic recording media - Google Patents
Production of magnetic recording mediaInfo
- Publication number
- JPS5421309A JPS5421309A JP8637177A JP8637177A JPS5421309A JP S5421309 A JPS5421309 A JP S5421309A JP 8637177 A JP8637177 A JP 8637177A JP 8637177 A JP8637177 A JP 8637177A JP S5421309 A JPS5421309 A JP S5421309A
- Authority
- JP
- Japan
- Prior art keywords
- production
- magnetic recording
- recording media
- density
- cylindrical
- 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
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
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
- C23C14/32—Vacuum evaporation by explosion; by evaporation and subsequent ionisation of the vapours, e.g. ion-plating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
PURPOSE:To make possible increasing of the density of long-length magnetic tapes in particular by partly ionizing and directing vapor current of a ferromagnetic mother material to the base material moving along the peripheral side surface of a cylindrical can in a vacuum atmosphere in which partial pressure of O2 is specified.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8637177A JPS5421309A (en) | 1977-07-18 | 1977-07-18 | Production of magnetic recording media |
GB53072/77A GB1596385A (en) | 1976-12-29 | 1977-12-20 | Methods and apparatus for manufacturing magnetic recording media |
FR7739205A FR2376485A1 (en) | 1976-12-29 | 1977-12-26 | METHOD AND DEVICE FOR MANUFACTURING MAGNETIC BANDS |
CA294,014A CA1096968A (en) | 1976-12-29 | 1977-12-28 | Method and apparatus for fabrication of magnetic recording media |
DE2758772A DE2758772C2 (en) | 1976-12-29 | 1977-12-29 | Process for the production of a tape-shaped, magnetic recording medium |
NLAANVRAGE7714538,A NL181059C (en) | 1976-12-29 | 1977-12-29 | METHOD FOR MANUFACTURING A MAGNETIC REGISTRATION MEDIUM |
US06/008,083 US4220117A (en) | 1976-12-29 | 1979-01-31 | Apparatus for fabrication of magnetic recording media |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8637177A JPS5421309A (en) | 1977-07-18 | 1977-07-18 | Production of magnetic recording media |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5421309A true JPS5421309A (en) | 1979-02-17 |
JPS5739455B2 JPS5739455B2 (en) | 1982-08-21 |
Family
ID=13885013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8637177A Granted JPS5421309A (en) | 1976-12-29 | 1977-07-18 | Production of magnetic recording media |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5421309A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5363262A (en) * | 1976-11-19 | 1978-06-06 | Kanemitsu Kk | Rotating forming device for multistage v pully |
JPS5431080A (en) * | 1977-08-12 | 1979-03-07 | Rogers Mfg Co | Method and apparatus for making multii groove pulley |
JPS5736438A (en) * | 1980-08-13 | 1982-02-27 | Sekisui Chem Co Ltd | Production of magnetic recording medium |
JPS5825826A (en) * | 1982-07-14 | 1983-02-16 | Mori Zenmai Kogyo Kk | Manufacture of double v-pulley |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5623217A (en) * | 1979-07-31 | 1981-03-05 | Kawasaki Steel Corp | Pouring starting method of continuous casting |
-
1977
- 1977-07-18 JP JP8637177A patent/JPS5421309A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5623217A (en) * | 1979-07-31 | 1981-03-05 | Kawasaki Steel Corp | Pouring starting method of continuous casting |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5363262A (en) * | 1976-11-19 | 1978-06-06 | Kanemitsu Kk | Rotating forming device for multistage v pully |
JPS5431080A (en) * | 1977-08-12 | 1979-03-07 | Rogers Mfg Co | Method and apparatus for making multii groove pulley |
JPS5726174B2 (en) * | 1977-08-12 | 1982-06-03 | ||
JPS5736438A (en) * | 1980-08-13 | 1982-02-27 | Sekisui Chem Co Ltd | Production of magnetic recording medium |
JPS5825826A (en) * | 1982-07-14 | 1983-02-16 | Mori Zenmai Kogyo Kk | Manufacture of double v-pulley |
Also Published As
Publication number | Publication date |
---|---|
JPS5739455B2 (en) | 1982-08-21 |
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