JPS54143113A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS54143113A
JPS54143113A JP5156378A JP5156378A JPS54143113A JP S54143113 A JPS54143113 A JP S54143113A JP 5156378 A JP5156378 A JP 5156378A JP 5156378 A JP5156378 A JP 5156378A JP S54143113 A JPS54143113 A JP S54143113A
Authority
JP
Japan
Prior art keywords
layer
magnetic
recording medium
powders
organic material
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
JP5156378A
Other languages
Japanese (ja)
Inventor
Takashi Fujita
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 JP5156378A priority Critical patent/JPS54143113A/en
Publication of JPS54143113A publication Critical patent/JPS54143113A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To increase the output in a short wave range, while conserving the caracteristics of the high energy in a long wave range, by forming the surface of a magnetic recording medium of application type with a magnetic layer which is thin and highly dense.
CONSTITUTION: There is formed on a substrate 1 an applied layer 2 which is prepared by mixing an organic material with magnetic powders such as oxide magnetic powders or fine powders of metal alloy. The layer 2 is sufficiently dried and set, after its application, and is subjected to sufficient calendering treatment with the use of a roller so that it is smoothened. On the other hand, the organic material to be used is selected from those having less residual gases. The layer 2 is sputtered or vapored with Co, Fe, Ni or their alloy to form a thin magnetic film layer 3 which has a magnetisim resisting force higher than that of the layer and lower than 1700 Oe and which has a residual magnetic flux density higher than 9000 G.
COPYRIGHT: (C)1979,JPO&Japio
JP5156378A 1978-04-27 1978-04-27 Magnetic recording medium Pending JPS54143113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5156378A JPS54143113A (en) 1978-04-27 1978-04-27 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5156378A JPS54143113A (en) 1978-04-27 1978-04-27 Magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS54143113A true JPS54143113A (en) 1979-11-08

Family

ID=12890434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5156378A Pending JPS54143113A (en) 1978-04-27 1978-04-27 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS54143113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956219A (en) * 1982-09-25 1984-03-31 Matsushita Electric Ind Co Ltd Magnetic recording medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5112103A (en) * 1974-07-20 1976-01-30 Tdk Electronics Co Ltd JIKIKIRO KUTAI
JPS52125306A (en) * 1976-04-13 1977-10-21 Fuji Photo Film Co Ltd Production of magnetic recording media
JPS5360605A (en) * 1976-11-12 1978-05-31 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5374003A (en) * 1976-12-14 1978-07-01 Fuji Photo Film Co Ltd Magnetic recording medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5112103A (en) * 1974-07-20 1976-01-30 Tdk Electronics Co Ltd JIKIKIRO KUTAI
JPS52125306A (en) * 1976-04-13 1977-10-21 Fuji Photo Film Co Ltd Production of magnetic recording media
JPS5360605A (en) * 1976-11-12 1978-05-31 Fuji Photo Film Co Ltd Magnetic recording medium
JPS5374003A (en) * 1976-12-14 1978-07-01 Fuji Photo Film Co Ltd Magnetic recording medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956219A (en) * 1982-09-25 1984-03-31 Matsushita Electric Ind Co Ltd Magnetic recording medium

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