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JPS55105302A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS55105302A
JPS55105302A JP1369879A JP1369879A JPS55105302A JP S55105302 A JPS55105302 A JP S55105302A JP 1369879 A JP1369879 A JP 1369879A JP 1369879 A JP1369879 A JP 1369879A JP S55105302 A JPS55105302 A JP S55105302A
Authority
JP
Japan
Prior art keywords
film
magnetic
recording medium
magnetic film
consisted
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
JP1369879A
Other languages
Japanese (ja)
Inventor
Kidai Nochi
Eiichi Hirota
Harufumi Sakino
Kenji Kanai
Noboru Nomura
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 JP1369879A priority Critical patent/JPS55105302A/en
Publication of JPS55105302A publication Critical patent/JPS55105302A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve the corrosion resistance of a magnetic recording medium for the recording of the short wave band signal by a method wherein a magnetic layer is formed in it which is consisted of Co or Co-Ni, and Si and Cu is contained in it.
CONSTITUTION: An Al film 12 is formed in a predetermined thickness on a substrate 11 of a magnetic recording medium, and a magnetic film 13 consisted of Co only is formed on it in a predetermined thickness. On the magnetic film 13 is laminated in turn an Al film 14, a Co magnetic film 15 and an Al film 16 each in a predetermined thickness, and a magnetic film 17 consisted of Co93Ni4Si2Cu is formed on the most upper layer. The Si gravity percentage X% and the Cu gravity percentage Y% of this magnetic film is kept within the range shown below to improve its corrosion resistance. 0<X<6, 0<Y<5, 1≤X+Y≤10 And also the magnetic film is formed to contain in it at least any one sort of Ti, Cr, Zr, Nb, Mo, Ta and W, and the total weight of one sort element is kept to be under the 5% weight ratio.
COPYRIGHT: (C)1980,JPO&Japio
JP1369879A 1979-02-07 1979-02-07 Magnetic recording medium Pending JPS55105302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1369879A JPS55105302A (en) 1979-02-07 1979-02-07 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1369879A JPS55105302A (en) 1979-02-07 1979-02-07 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS55105302A true JPS55105302A (en) 1980-08-12

Family

ID=11840408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1369879A Pending JPS55105302A (en) 1979-02-07 1979-02-07 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS55105302A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773913A (en) * 1980-10-28 1982-05-08 Teijin Ltd Vertical magnetic recording medium
JPS57170505A (en) * 1981-04-13 1982-10-20 Nippon Gakki Seizo Kk Tape for magnetic recording
JPS57183004A (en) * 1981-05-07 1982-11-11 Fuji Photo Film Co Ltd Magnetically recording medium
JPS57196508A (en) * 1981-05-28 1982-12-02 Nippon Gakki Seizo Kk Magnetic recording tape
JPS57207307A (en) * 1981-06-16 1982-12-20 Nippon Gakki Seizo Kk Magnetic recording tape and manufacture thereof
JPS5961012A (en) * 1982-09-29 1984-04-07 Seiko Epson Corp Vertical magnetic recording medium
JPS5961013A (en) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5974606A (en) * 1982-10-21 1984-04-27 Fuji Photo Film Co Ltd Magnetic recording medium
JPS61189610A (en) * 1985-03-23 1986-08-23 Tohoku Tokushuko Kk Magnetic material for magnetic recording medium
JPS61190714A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body
JPS61190716A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body
JPS61190713A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151908A (en) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5151908A (en) * 1974-11-01 1976-05-07 Fuji Photo Film Co Ltd

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6367326B2 (en) * 1980-10-28 1988-12-26 Teijin Ltd
JPS5773913A (en) * 1980-10-28 1982-05-08 Teijin Ltd Vertical magnetic recording medium
JPS57170505A (en) * 1981-04-13 1982-10-20 Nippon Gakki Seizo Kk Tape for magnetic recording
JPH0416926B2 (en) * 1981-04-13 1992-03-25 Yamaha Corp
JPS57183004A (en) * 1981-05-07 1982-11-11 Fuji Photo Film Co Ltd Magnetically recording medium
JPS57196508A (en) * 1981-05-28 1982-12-02 Nippon Gakki Seizo Kk Magnetic recording tape
JPS57207307A (en) * 1981-06-16 1982-12-20 Nippon Gakki Seizo Kk Magnetic recording tape and manufacture thereof
JPS5961013A (en) * 1982-09-29 1984-04-07 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5961012A (en) * 1982-09-29 1984-04-07 Seiko Epson Corp Vertical magnetic recording medium
JPH0514405B2 (en) * 1982-09-29 1993-02-25 Seiko Epson Corp
JPS5974606A (en) * 1982-10-21 1984-04-27 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0559570B2 (en) * 1982-10-21 1993-08-31 Fuji Photo Film Co Ltd
JPS61190714A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body
JPS61190716A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body
JPS61190713A (en) * 1985-02-19 1986-08-25 Ulvac Corp Magnetic recording body
JPH0322648B2 (en) * 1985-02-19 1991-03-27 Ulvac Corp
JPH0323971B2 (en) * 1985-02-19 1991-04-02 Ulvac Corp
JPH0323969B2 (en) * 1985-02-19 1991-04-02 Ulvac Corp
JPS61189610A (en) * 1985-03-23 1986-08-23 Tohoku Tokushuko Kk Magnetic material for magnetic recording medium

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