JPS5411704A - Production of magnetic discs - Google Patents

Production of magnetic discs

Info

Publication number
JPS5411704A
JPS5411704A JP7617177A JP7617177A JPS5411704A JP S5411704 A JPS5411704 A JP S5411704A JP 7617177 A JP7617177 A JP 7617177A JP 7617177 A JP7617177 A JP 7617177A JP S5411704 A JPS5411704 A JP S5411704A
Authority
JP
Japan
Prior art keywords
production
magnetic discs
disc
magnetic
magnetic field
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
JP7617177A
Other languages
Japanese (ja)
Other versions
JPS5712209B2 (en
Inventor
Seiya Ogawa
Shoji Ishida
Kenichi Ito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7617177A priority Critical patent/JPS5411704A/en
Publication of JPS5411704A publication Critical patent/JPS5411704A/en
Publication of JPS5712209B2 publication Critical patent/JPS5712209B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE: To improve recording and reproducing characteristics by applying a magnetic field which is a magnetic flux perpendicular to a disc and has a gradient to the disc from its below thereafter applying an in-plane gradient magnetic field for recording to magnetic layer.
COPYRIGHT: (C)1979,JPO&Japio
JP7617177A 1977-06-28 1977-06-28 Production of magnetic discs Granted JPS5411704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7617177A JPS5411704A (en) 1977-06-28 1977-06-28 Production of magnetic discs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7617177A JPS5411704A (en) 1977-06-28 1977-06-28 Production of magnetic discs

Publications (2)

Publication Number Publication Date
JPS5411704A true JPS5411704A (en) 1979-01-29
JPS5712209B2 JPS5712209B2 (en) 1982-03-09

Family

ID=13597632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7617177A Granted JPS5411704A (en) 1977-06-28 1977-06-28 Production of magnetic discs

Country Status (1)

Country Link
JP (1) JPS5411704A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812138A (en) * 1981-07-13 1983-01-24 Toshiba Corp Production of magnetic recording medium
JPS60125932A (en) * 1983-12-12 1985-07-05 Berumateitsuku:Kk Production of anisotropic floppy disk
US4578280A (en) * 1983-03-08 1986-03-25 Agfa-Gevaert Aktiengesellschaft Process for the production of a magnetic recording material with perpendicular orientation
US4696831A (en) * 1985-02-14 1987-09-29 Hitachi, Ltd. Method of orienting magnetic disc by magnetic field

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045603A (en) * 1973-08-25 1975-04-23
JPS531508A (en) * 1976-06-28 1978-01-09 Nec Corp Preparation of magnetic recording medium and device therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5045603A (en) * 1973-08-25 1975-04-23
JPS531508A (en) * 1976-06-28 1978-01-09 Nec Corp Preparation of magnetic recording medium and device therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5812138A (en) * 1981-07-13 1983-01-24 Toshiba Corp Production of magnetic recording medium
US4578280A (en) * 1983-03-08 1986-03-25 Agfa-Gevaert Aktiengesellschaft Process for the production of a magnetic recording material with perpendicular orientation
JPS60125932A (en) * 1983-12-12 1985-07-05 Berumateitsuku:Kk Production of anisotropic floppy disk
US4696831A (en) * 1985-02-14 1987-09-29 Hitachi, Ltd. Method of orienting magnetic disc by magnetic field

Also Published As

Publication number Publication date
JPS5712209B2 (en) 1982-03-09

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