JPS5737740A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS5737740A
JPS5737740A JP11381280A JP11381280A JPS5737740A JP S5737740 A JPS5737740 A JP S5737740A JP 11381280 A JP11381280 A JP 11381280A JP 11381280 A JP11381280 A JP 11381280A JP S5737740 A JPS5737740 A JP S5737740A
Authority
JP
Japan
Prior art keywords
crucible
recording medium
magnetic recording
ferromagnetic material
manufacture
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
Application number
JP11381280A
Other languages
Japanese (ja)
Inventor
Toshinori Takagi
Yoshiyuki Fukumoto
Yoichi Mikami
Shinsaku Nakada
Masahiro Hotta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP11381280A priority Critical patent/JPS5737740A/en
Publication of JPS5737740A publication Critical patent/JPS5737740A/en
Pending legal-status Critical Current

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
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)

Abstract

PURPOSE:To improve the playback output of a magnetic recording medium by increasing the corecive force of a ferromagnetic thin film formed by using an airtight curcible which has a nozzle of specific size. CONSTITUTION:In an airtight crucible 11 which has a nozzle 10 with greater length than its diameter and of size greater than the mean free stroke of vapor particles of a ferromagnetic material 14, supplied into the crucible 11 and heated to vapor, in the crucible, the ferromagnetic material 14, such as Co, is placed and heated by a filament 13, etc., and the produced vapor particles of the ferromagnetic material are vacuum-deposited on a base 5.
JP11381280A 1980-08-18 1980-08-18 Manufacture of magnetic recording medium Pending JPS5737740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11381280A JPS5737740A (en) 1980-08-18 1980-08-18 Manufacture of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11381280A JPS5737740A (en) 1980-08-18 1980-08-18 Manufacture of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS5737740A true JPS5737740A (en) 1982-03-02

Family

ID=14621667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11381280A Pending JPS5737740A (en) 1980-08-18 1980-08-18 Manufacture of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5737740A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412708A (en) * 1977-06-29 1979-01-30 Matsushita Electric Ind Co Ltd Production of magnetic recording media
JPS5512548A (en) * 1978-07-10 1980-01-29 Matsushita Electric Ind Co Ltd Manufacture for magnetic recording media

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412708A (en) * 1977-06-29 1979-01-30 Matsushita Electric Ind Co Ltd Production of magnetic recording media
JPS5512548A (en) * 1978-07-10 1980-01-29 Matsushita Electric Ind Co Ltd Manufacture for magnetic recording media

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