JPS5421309A - Production of magnetic recording media - Google Patents

Production of magnetic recording media

Info

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
Application number
JP8637177A
Other languages
Japanese (ja)
Other versions
JPS5739455B2 (en
Inventor
Koichi Shinohara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8637177A priority Critical patent/JPS5421309A/en
Priority to GB53072/77A priority patent/GB1596385A/en
Priority to FR7739205A priority patent/FR2376485A1/en
Priority to CA294,014A priority patent/CA1096968A/en
Priority to DE2758772A priority patent/DE2758772C2/en
Priority to NLAANVRAGE7714538,A priority patent/NL181059C/en
Priority to US06/008,083 priority patent/US4220117A/en
Publication of JPS5421309A publication Critical patent/JPS5421309A/en
Publication of JPS5739455B2 publication Critical patent/JPS5739455B2/ja
Granted 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
    • 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.
JP8637177A 1976-12-29 1977-07-18 Production of magnetic recording media Granted JPS5421309A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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