FR2476891A1 - Procede de fabrication d'un support d'enregistrement magnetique - Google Patents

Procede de fabrication d'un support d'enregistrement magnetique Download PDF

Info

Publication number
FR2476891A1
FR2476891A1 FR8103561A FR8103561A FR2476891A1 FR 2476891 A1 FR2476891 A1 FR 2476891A1 FR 8103561 A FR8103561 A FR 8103561A FR 8103561 A FR8103561 A FR 8103561A FR 2476891 A1 FR2476891 A1 FR 2476891A1
Authority
FR
France
Prior art keywords
magnetic
magnetic field
powder
orientation
coating layer
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
FR8103561A
Other languages
English (en)
French (fr)
Other versions
FR2476891B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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
Publication of FR2476891A1 publication Critical patent/FR2476891A1/fr
Application granted granted Critical
Publication of FR2476891B1 publication Critical patent/FR2476891B1/fr
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842Coating a support with a liquid magnetic dispersion
    • G11B5/845Coating 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)
FR8103561A 1980-02-22 1981-02-23 Procede de fabrication d'un support d'enregistrement magnetique Granted FR2476891A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2178880A JPS56119938A (en) 1980-02-22 1980-02-22 Production of magnetic recording medium

Publications (2)

Publication Number Publication Date
FR2476891A1 true FR2476891A1 (fr) 1981-08-28
FR2476891B1 FR2476891B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1985-03-22

Family

ID=12064797

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8103561A Granted FR2476891A1 (fr) 1980-02-22 1981-02-23 Procede de fabrication d'un support d'enregistrement magnetique

Country Status (6)

Country Link
US (1) US4332834A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS56119938A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3106414A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2476891A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2069874B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL8100855A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094452A3 (en) * 1982-05-19 1986-01-02 International Business Machines Corporation Production of magnetic recording medium with vertically oriented acicular particles

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57164436A (en) * 1981-04-02 1982-10-09 Fuji Photo Film Co Ltd Manufacture of magnetic recording medium
JPS57198544A (en) * 1981-05-28 1982-12-06 Sony Corp Manufacture of magnetic recording medium
US4473619A (en) * 1983-01-24 1984-09-25 Porco Daniel A Magnetic audio recording tape and method of preparation thereof
DE3308052A1 (de) * 1983-03-08 1984-09-13 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung eines magnetischen aufzeichnungsmaterials mit senkrechtausrichtung
JPS60111347A (ja) * 1983-11-18 1985-06-17 Hitachi Maxell Ltd 磁気記録媒体の製造方法
JPS60127527A (ja) * 1983-12-15 1985-07-08 Saiteku Kk 膜状積重磁気記録媒体およびその製造方法
US4587066A (en) * 1984-07-02 1986-05-06 Polaroid Corporation Method and apparatus for forming magnetic recording media
US4543551A (en) * 1984-07-02 1985-09-24 Polaroid Corporation Apparatus for orienting magnetic particles in recording media
JPS62222431A (ja) * 1986-03-24 1987-09-30 Hitachi Ltd 磁気記録媒体の表面処理方法
US4778719A (en) * 1986-08-25 1988-10-18 Eastman Kodak Company Particulate magnetic recording media and method of manufacture thereof
US4865703A (en) * 1986-08-25 1989-09-12 Eastman Kodak Company Particulate magnetic recording media and method of manufacture thereof
JPH01116925A (ja) * 1987-10-30 1989-05-09 Hitachi Ltd 塗布型磁気記録媒体およびその製造方法
JP2802769B2 (ja) * 1989-03-30 1998-09-24 コニカ株式会社 磁気記録媒体の製造方法
US5230818A (en) 1991-12-20 1993-07-27 Eastman Kodak Company Coating compositions for master media for anhysteretic recording
JP5335296B2 (ja) * 2008-06-18 2013-11-06 株式会社大気社 塗装方法
US11590717B2 (en) * 2017-02-22 2023-02-28 Ut-Battelle, Llc Extrudable magnetic ink and novel 3D printing method to fabricate bonded magnets of complex shape

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1263499A (fr) * 1960-06-28 1961-06-09 Rca Corp Procédé et dispositif pour la préparation d'éléments d'enregistrements magnétiques
GB933772A (en) * 1959-02-02 1963-08-14 Eastman Kodak Co Improvements in or relating to the orientation of magnetic particles
GB1059104A (en) * 1962-08-24 1967-02-15 Gevaert Photo Prod Nv Method and apparatus for producing recording material
GB1155413A (en) * 1965-07-13 1969-06-18 Emi Ltd Improvements relating to the manufacture of Magnetic Recording Tape
FR2033015A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-02-24 1970-11-27 Eastman Kodak Co
FR2069355A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-11-14 1971-09-03 Emi Ltd
FR2162608A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-12-09 1973-07-20 Basf Ag

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB933772A (en) * 1959-02-02 1963-08-14 Eastman Kodak Co Improvements in or relating to the orientation of magnetic particles
FR1263499A (fr) * 1960-06-28 1961-06-09 Rca Corp Procédé et dispositif pour la préparation d'éléments d'enregistrements magnétiques
GB1059104A (en) * 1962-08-24 1967-02-15 Gevaert Photo Prod Nv Method and apparatus for producing recording material
GB1155413A (en) * 1965-07-13 1969-06-18 Emi Ltd Improvements relating to the manufacture of Magnetic Recording Tape
FR2033015A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-02-24 1970-11-27 Eastman Kodak Co
FR2069355A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-11-14 1971-09-03 Emi Ltd
FR2162608A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1971-12-09 1973-07-20 Basf Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094452A3 (en) * 1982-05-19 1986-01-02 International Business Machines Corporation Production of magnetic recording medium with vertically oriented acicular particles

Also Published As

Publication number Publication date
JPS613007B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1986-01-29
US4332834A (en) 1982-06-01
DE3106414A1 (de) 1982-01-14
NL8100855A (nl) 1981-09-16
GB2069874B (en) 1983-10-19
FR2476891B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1985-03-22
JPS56119938A (en) 1981-09-19
GB2069874A (en) 1981-09-03

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Legal Events

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