JPS5715406A - Thin-metalic-film type magnetic recording medium and manufacture thereof - Google Patents

Thin-metalic-film type magnetic recording medium and manufacture thereof

Info

Publication number
JPS5715406A
JPS5715406A JP9025280A JP9025280A JPS5715406A JP S5715406 A JPS5715406 A JP S5715406A JP 9025280 A JP9025280 A JP 9025280A JP 9025280 A JP9025280 A JP 9025280A JP S5715406 A JPS5715406 A JP S5715406A
Authority
JP
Japan
Prior art keywords
magnetic
film type
thin
type magnetic
metalic
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
JP9025280A
Other languages
Japanese (ja)
Other versions
JPH0133924B2 (en
Inventor
Toshiaki Kunieda
Ryuji Sugita
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 JP9025280A priority Critical patent/JPS5715406A/en
Publication of JPS5715406A publication Critical patent/JPS5715406A/en
Publication of JPH0133924B2 publication Critical patent/JPH0133924B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
    • G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
    • G11B5/656—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing Co

Abstract

PURPOSE:To obtain thin-film type magnetic media having excellent magnetic characteristics and corrosion resistance by adding Cr to a magnetic layer of Co or Co-Ni. CONSTITUTION:Evaporation is performed on a glass or polyimide film, with Co or Co-Mi wherein weight % of Ni is 55 or less as a parent material. Said parent material is relatively easy to give magnetic resistant proterty. At this time, the ratio of inclusion of Cr with respect to Co+Cr or Co+Ni+Cr is 2-15wet%. If said material is added, a magnetic film having excellent magnetic prorperty and corrosion resi stance can be obtained. The composition of Cr and the partial pressure of oxygen in the residual evaporation gas greatly affects the characteristics of the magnetic films. In the case the amount of Cr addition lies in the range of 2-15wt% the magnetic resistant force Hc largely increases. If the partial pressure of oxygen exceeds 10<-4> Torr, Hc decreases rapidly, and the effect of Cr addition is lost.
JP9025280A 1980-07-02 1980-07-02 Thin-metalic-film type magnetic recording medium and manufacture thereof Granted JPS5715406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9025280A JPS5715406A (en) 1980-07-02 1980-07-02 Thin-metalic-film type magnetic recording medium and manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9025280A JPS5715406A (en) 1980-07-02 1980-07-02 Thin-metalic-film type magnetic recording medium and manufacture thereof

Publications (2)

Publication Number Publication Date
JPS5715406A true JPS5715406A (en) 1982-01-26
JPH0133924B2 JPH0133924B2 (en) 1989-07-17

Family

ID=13993299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9025280A Granted JPS5715406A (en) 1980-07-02 1980-07-02 Thin-metalic-film type magnetic recording medium and manufacture thereof

Country Status (1)

Country Link
JP (1) JPS5715406A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134907A (en) * 1981-02-13 1982-08-20 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57170505A (en) * 1981-04-13 1982-10-20 Nippon Gakki Seizo Kk Tape for magnetic recording
JPS57207307A (en) * 1981-06-16 1982-12-20 Nippon Gakki Seizo Kk Magnetic recording tape and manufacture thereof
JPS5917216A (en) * 1982-07-20 1984-01-28 Ulvac Corp Magnetic recorder and its manufacture
JPS5961105A (en) * 1982-09-30 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5961013A (en) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPS61189609A (en) * 1985-02-18 1986-08-23 Tohoku Tokushuko Kk Magnetic material for magnetic recording medium
JPS61204830A (en) * 1985-03-08 1986-09-10 Nec Corp Magnetic storage body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775179A (en) * 1969-02-22 1973-11-27 Emi Ltd Magnetic recording media
JPS6034169A (en) * 1983-08-02 1985-02-21 金子農機株式会社 Tobacco drying control apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775179A (en) * 1969-02-22 1973-11-27 Emi Ltd Magnetic recording media
JPS6034169A (en) * 1983-08-02 1985-02-21 金子農機株式会社 Tobacco drying control apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57134907A (en) * 1981-02-13 1982-08-20 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0462163B2 (en) * 1981-02-13 1992-10-05 Fuji Photo Film Co Ltd
JPH0416926B2 (en) * 1981-04-13 1992-03-25 Yamaha Corp
JPS57170505A (en) * 1981-04-13 1982-10-20 Nippon Gakki Seizo Kk Tape for magnetic recording
JPS57207307A (en) * 1981-06-16 1982-12-20 Nippon Gakki Seizo Kk Magnetic recording tape and manufacture thereof
JPS5917216A (en) * 1982-07-20 1984-01-28 Ulvac Corp Magnetic recorder and its manufacture
JPH0254642B2 (en) * 1982-07-20 1990-11-22 Ulvac Corp
JPS5961013A (en) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5961105A (en) * 1982-09-30 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0559569B2 (en) * 1982-09-30 1993-08-31 Fuji Photo Film Co Ltd
JPS61189609A (en) * 1985-02-18 1986-08-23 Tohoku Tokushuko Kk Magnetic material for magnetic recording medium
JPH0582721B2 (en) * 1985-02-18 1993-11-22 Tohoku Steel
JPS61204830A (en) * 1985-03-08 1986-09-10 Nec Corp Magnetic storage body

Also Published As

Publication number Publication date
JPH0133924B2 (en) 1989-07-17

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