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JPS57205827A - Manufacture of magnetic recording medium - Google Patents

Manufacture of magnetic recording medium

Info

Publication number
JPS57205827A
JPS57205827A JP8928281A JP8928281A JPS57205827A JP S57205827 A JPS57205827 A JP S57205827A JP 8928281 A JP8928281 A JP 8928281A JP 8928281 A JP8928281 A JP 8928281A JP S57205827 A JPS57205827 A JP S57205827A
Authority
JP
Japan
Prior art keywords
recording medium
manufacture
magnetic recording
magnetic field
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
JP8928281A
Other languages
Japanese (ja)
Other versions
JPH0250531B2 (en
Inventor
Yutaka Takei
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8928281A priority Critical patent/JPS57205827A/en
Publication of JPS57205827A publication Critical patent/JPS57205827A/en
Publication of JPH0250531B2 publication Critical patent/JPH0250531B2/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • G11B5/845—Coating a support with a liquid magnetic dispersion in a magnetic field

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To obtain a vertically magnetized recording medium whose surface property is excellent, by applying an AC magnetic field to an application type medium. CONSTITUTION:On the base of a polyethylene terephthalate film, etc., a magnetic coating material is applied, and before the coating film is dried, a tape 2 is made to pass through a solenoid AC magnet 1, an AC magnetic field is applied in the direction falling at right angles to the orienting direction, and the vertical orientation mode processing is executed.
JP8928281A 1981-06-10 1981-06-10 Manufacture of magnetic recording medium Granted JPS57205827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8928281A JPS57205827A (en) 1981-06-10 1981-06-10 Manufacture of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8928281A JPS57205827A (en) 1981-06-10 1981-06-10 Manufacture of magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS57205827A true JPS57205827A (en) 1982-12-17
JPH0250531B2 JPH0250531B2 (en) 1990-11-02

Family

ID=13966350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8928281A Granted JPS57205827A (en) 1981-06-10 1981-06-10 Manufacture of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS57205827A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812135A (en) * 1981-07-13 1983-01-24 Toshiba Corp Method for manufacturing magnetic recording media
JPS6150217A (en) * 1984-08-17 1986-03-12 Sony Corp Production of magnetic recording medium
US6999257B2 (en) * 2001-01-31 2006-02-14 Kabushiki Kaisha Toshiba Magnetic disk drive with structure for avoiding DC magnetic disturbance on a disk surface

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812135A (en) * 1981-07-13 1983-01-24 Toshiba Corp Method for manufacturing magnetic recording media
JPS6150217A (en) * 1984-08-17 1986-03-12 Sony Corp Production of magnetic recording medium
US6999257B2 (en) * 2001-01-31 2006-02-14 Kabushiki Kaisha Toshiba Magnetic disk drive with structure for avoiding DC magnetic disturbance on a disk surface

Also Published As

Publication number Publication date
JPH0250531B2 (en) 1990-11-02

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