JPS5449105A - Production of magnetic recording media of magnetic thin- films of oxides - Google Patents

Production of magnetic recording media of magnetic thin- films of oxides

Info

Publication number
JPS5449105A
JPS5449105A JP11583577A JP11583577A JPS5449105A JP S5449105 A JPS5449105 A JP S5449105A JP 11583577 A JP11583577 A JP 11583577A JP 11583577 A JP11583577 A JP 11583577A JP S5449105 A JPS5449105 A JP S5449105A
Authority
JP
Japan
Prior art keywords
film
magnetic thin
magnetic
heat
oxides
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
JP11583577A
Other languages
Japanese (ja)
Inventor
Kozo Nishimoto
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11583577A priority Critical patent/JPS5449105A/en
Publication of JPS5449105A publication Critical patent/JPS5449105A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To suppress the change in the coercive force of the Fe3O4-ϒ-Fe2O3 base magnetic thin-film medium by heat-treating said medium at specific temperatures.
CONSTITUTION: The Fe3O4-ϒ-Fe2O3 base continuous magnetic thin-film in which magnetic is slow oxidized or the oxide magnetic thin-film added with a dissimilar metal element such as Co is heat-treated at temperatures of 30 to 130°C, particularly 40 to 90°C, in an inert gas, in a vacuum or in air. Thereby, the increase in the coercive force which will require a long period of time when the film is left standing at room temperature is acceleratively progressed in a short time through heat treatment, and the subsequent change with time is thereby suppressed and stable recording-repoducing characteristics may be obtained
COPYRIGHT: (C)1979,JPO&Japio
JP11583577A 1977-09-26 1977-09-26 Production of magnetic recording media of magnetic thin- films of oxides Pending JPS5449105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11583577A JPS5449105A (en) 1977-09-26 1977-09-26 Production of magnetic recording media of magnetic thin- films of oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11583577A JPS5449105A (en) 1977-09-26 1977-09-26 Production of magnetic recording media of magnetic thin- films of oxides

Publications (1)

Publication Number Publication Date
JPS5449105A true JPS5449105A (en) 1979-04-18

Family

ID=14672288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11583577A Pending JPS5449105A (en) 1977-09-26 1977-09-26 Production of magnetic recording media of magnetic thin- films of oxides

Country Status (1)

Country Link
JP (1) JPS5449105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119530A (en) * 1982-12-27 1984-07-10 Mitsubishi Metal Corp Magnetic recording medium for vertical magnetization recording

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59119530A (en) * 1982-12-27 1984-07-10 Mitsubishi Metal Corp Magnetic recording medium for vertical magnetization recording
JPS6224850B2 (en) * 1982-12-27 1987-05-30 Mitsubishi Metal Corp

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