JPS54145105A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS54145105A
JPS54145105A JP5314978A JP5314978A JPS54145105A JP S54145105 A JPS54145105 A JP S54145105A JP 5314978 A JP5314978 A JP 5314978A JP 5314978 A JP5314978 A JP 5314978A JP S54145105 A JPS54145105 A JP S54145105A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic recording
substrate
recording medium
whose
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
JP5314978A
Other languages
Japanese (ja)
Other versions
JPS5754854B2 (en
Inventor
Masatoshi Takao
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 JP5314978A priority Critical patent/JPS54145105A/en
Publication of JPS54145105A publication Critical patent/JPS54145105A/en
Publication of JPS5754854B2 publication Critical patent/JPS5754854B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To let the medium be suitable for performing effective magnetic recording with consideration being paid for the directions of magnetic moment in its magnetic material layers by superposing the magnetic material layers having two kinds of different magnetic anisotropies.
CONSTITUTION: A first magnetic material layer 3 whose coercive force is 200 Oe over and whose main magnetic anisotropic axis is parallel to the surface of a non- magnetic substrate 1 such as high polymer film is formed on the substrate 1. On this is formed a second magnetic magerial layer whose coercive force is 200 Oe or under and whose main magnetic anisotropic axis is rectangular to the surface of the substrate 1. Thereby, self-demagnetizing phenomenon is suppressed and the magnetic recording medium effective for achieving the higher density of magnetic recording may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP5314978A 1978-05-02 1978-05-02 Magnetic recording medium Granted JPS54145105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5314978A JPS54145105A (en) 1978-05-02 1978-05-02 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5314978A JPS54145105A (en) 1978-05-02 1978-05-02 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS54145105A true JPS54145105A (en) 1979-11-13
JPS5754854B2 JPS5754854B2 (en) 1982-11-20

Family

ID=12934765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5314978A Granted JPS54145105A (en) 1978-05-02 1978-05-02 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS54145105A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57183630A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57183624A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57195329A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS58171717A (en) * 1982-04-02 1983-10-08 Dainippon Printing Co Ltd Magnetic recording medium
JPS59142737A (en) * 1983-02-02 1984-08-16 Nec Corp Vertical magnetic storage body with two magnetic layers
JPS6174132A (en) * 1984-09-20 1986-04-16 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS62204429A (en) * 1986-03-04 1987-09-09 Nippon Hoso Kyokai <Nhk> Magnetic recording medium and magnetic head

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57183630A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPS57183624A (en) * 1981-05-07 1982-11-12 Fuji Photo Film Co Ltd Magnetic recording medium
JPH0219531B2 (en) * 1981-05-07 1990-05-02 Fuji Photo Film Co Ltd
JPH0219530B2 (en) * 1981-05-07 1990-05-02 Fuji Photo Film Co Ltd
JPS57195329A (en) * 1981-05-26 1982-12-01 Fuji Photo Film Co Ltd Magnetic recording medium
JPS58171717A (en) * 1982-04-02 1983-10-08 Dainippon Printing Co Ltd Magnetic recording medium
JPS59142737A (en) * 1983-02-02 1984-08-16 Nec Corp Vertical magnetic storage body with two magnetic layers
JPH0157413B2 (en) * 1983-02-02 1989-12-05 Nippon Electric Co
JPS6174132A (en) * 1984-09-20 1986-04-16 Matsushita Electric Ind Co Ltd Magnetic recording medium
JPS62204429A (en) * 1986-03-04 1987-09-09 Nippon Hoso Kyokai <Nhk> Magnetic recording medium and magnetic head

Also Published As

Publication number Publication date
JPS5754854B2 (en) 1982-11-20

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