JPS6453339A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS6453339A
JPS6453339A JP21073587A JP21073587A JPS6453339A JP S6453339 A JPS6453339 A JP S6453339A JP 21073587 A JP21073587 A JP 21073587A JP 21073587 A JP21073587 A JP 21073587A JP S6453339 A JPS6453339 A JP S6453339A
Authority
JP
Japan
Prior art keywords
protective film
film
alloy
thin ferromagnetic
ferromagnetic metallic
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
JP21073587A
Other languages
Japanese (ja)
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 JP21073587A priority Critical patent/JPS6453339A/en
Publication of JPS6453339A publication Critical patent/JPS6453339A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To reduce the thickness of a protective film and to decrease spacing loss by using oxygen and fluorine-contg. gas as the discharge gas to form the oxide of a Co alloy as the protective film on a thin ferromagnetic metallic film consisting of the Co alloy. CONSTITUTION:The Co alloy oxide of a Co alloy oxide target 20 is vacuum- deposited by a 2nd magnetic field generator 21 on the thin ferromagnetic metallic film 2 on a high-polymer film 1 on which the thin ferromagnetic metallic film 2 consisting of the Co alloy is formed to form the protective film 3 on the thin ferromagnetic metallic film 2 at the time when the above-mentioned high-polymer film 1 is wound on the 2nd rotary support 18 and is moved. The oxygen and fluorine-contg. gas are introduced from a 2nd gas introducing port 11 into a protective film forming chamber 7 so that active fluorine is taken into the surface of the protective film 3. Since the cohesion among the metals is thereby hardly generated even where humidity is low, the thickness of the protective film 3 is reduced and the spacing loss is decreased.
JP21073587A 1987-08-24 1987-08-24 Production of magnetic recording medium Pending JPS6453339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21073587A JPS6453339A (en) 1987-08-24 1987-08-24 Production of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21073587A JPS6453339A (en) 1987-08-24 1987-08-24 Production of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS6453339A true JPS6453339A (en) 1989-03-01

Family

ID=16594240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21073587A Pending JPS6453339A (en) 1987-08-24 1987-08-24 Production of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS6453339A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127639A (en) * 1983-11-18 1989-05-19 Office Natl Etud Rech Aerospat <Onera> Turbo apparatus blade
US5052244A (en) * 1989-05-12 1991-10-01 Aisin Seiki Kabushiki Kaisha Torque variation absorbing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127639A (en) * 1983-11-18 1989-05-19 Office Natl Etud Rech Aerospat <Onera> Turbo apparatus blade
US5052244A (en) * 1989-05-12 1991-10-01 Aisin Seiki Kabushiki Kaisha Torque variation absorbing device

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