JPS5370804A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS5370804A
JPS5370804A JP14688176A JP14688176A JPS5370804A JP S5370804 A JPS5370804 A JP S5370804A JP 14688176 A JP14688176 A JP 14688176A JP 14688176 A JP14688176 A JP 14688176A JP S5370804 A JPS5370804 A JP S5370804A
Authority
JP
Japan
Prior art keywords
manufacture
recording medium
magnetic recording
film
magnetic
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
JP14688176A
Other languages
Japanese (ja)
Other versions
JPS6032261B2 (en
Inventor
Koichi Makino
Masaki Shinohara
Wakatake Matsuda
Seiji Hattori
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP14688176A priority Critical patent/JPS6032261B2/en
Publication of JPS5370804A publication Critical patent/JPS5370804A/en
Publication of JPS6032261B2 publication Critical patent/JPS6032261B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make wide the temperature range for the reduction process and to increase the coercive force for magnetic characteristic and the edge-ratio, by forming the non-magnetic α-Fe2O3 film added with Cr, Cu, Co, through the reactive sputtering process, and then, by reducing this film to the Fe3O4 film.
COPYRIGHT: (C)1978,JPO&Japio
JP14688176A 1976-12-07 1976-12-07 Method for manufacturing magnetic recording media Expired JPS6032261B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14688176A JPS6032261B2 (en) 1976-12-07 1976-12-07 Method for manufacturing magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14688176A JPS6032261B2 (en) 1976-12-07 1976-12-07 Method for manufacturing magnetic recording media

Publications (2)

Publication Number Publication Date
JPS5370804A true JPS5370804A (en) 1978-06-23
JPS6032261B2 JPS6032261B2 (en) 1985-07-26

Family

ID=15417673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14688176A Expired JPS6032261B2 (en) 1976-12-07 1976-12-07 Method for manufacturing magnetic recording media

Country Status (1)

Country Link
JP (1) JPS6032261B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205826A (en) * 1981-06-12 1982-12-17 Hitachi Condenser Co Ltd Manufacture of magnetic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57205826A (en) * 1981-06-12 1982-12-17 Hitachi Condenser Co Ltd Manufacture of magnetic recording medium
JPH0222449B2 (en) * 1981-06-12 1990-05-18 Hitachi Kondensa Kk

Also Published As

Publication number Publication date
JPS6032261B2 (en) 1985-07-26

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