FR2476362A1 - Procede pour fabriquer un moyen d'enregistrement magnetique - Google Patents

Procede pour fabriquer un moyen d'enregistrement magnetique Download PDF

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Publication number
FR2476362A1
FR2476362A1 FR8103324A FR8103324A FR2476362A1 FR 2476362 A1 FR2476362 A1 FR 2476362A1 FR 8103324 A FR8103324 A FR 8103324A FR 8103324 A FR8103324 A FR 8103324A FR 2476362 A1 FR2476362 A1 FR 2476362A1
Authority
FR
France
Prior art keywords
magnetic
magnetic field
orientation
powder
magnetic powder
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
FR8103324A
Other languages
English (en)
French (fr)
Other versions
FR2476362B1 (de
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 FR2476362A1 publication Critical patent/FR2476362A1/fr
Application granted granted Critical
Publication of FR2476362B1 publication Critical patent/FR2476362B1/fr
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)
FR8103324A 1980-02-19 1981-02-19 Procede pour fabriquer un moyen d'enregistrement magnetique Granted FR2476362A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1963380A JPS56117336A (en) 1980-02-19 1980-02-19 Manufacture of magnetic recording medium

Publications (2)

Publication Number Publication Date
FR2476362A1 true FR2476362A1 (fr) 1981-08-21
FR2476362B1 FR2476362B1 (de) 1985-01-25

Family

ID=12004602

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8103324A Granted FR2476362A1 (fr) 1980-02-19 1981-02-19 Procede pour fabriquer un moyen d'enregistrement magnetique

Country Status (5)

Country Link
JP (1) JPS56117336A (de)
DE (1) DE3106228A1 (de)
FR (1) FR2476362A1 (de)
GB (1) GB2069371B (de)
NL (1) NL8100802A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240063A1 (de) * 1981-11-02 1983-05-26 Basf Ag, 6700 Ludwigshafen Vorrichtung zur herstellung eines magnetogrammtraegers
EP0094452A3 (de) * 1982-05-19 1986-01-02 International Business Machines Corporation Herstellung eines magnetischen Aufzeichnungsmediums mit senkrecht orientierten nadelförmigen Teilchen
JPH0656656B2 (ja) * 1983-10-03 1994-07-27 富士写真フイルム株式会社 磁気記録媒体の製造方法
AT392168B (de) * 1986-04-18 1991-02-11 Skidata Computergesellschaft M Verfahren zur herstellung eines optisch und magnetisch kennzeichenbaren aufzeichnungstraegers
JPH0690793B2 (ja) * 1987-04-30 1994-11-14 帝人メモリーメデイア株式会社 磁気記録媒体の製造方法
DE3835180A1 (de) * 1988-10-15 1990-04-19 Friedhelm Schneider Vorrichtung zum entleeren von beutelpackungen
JP2009502004A (ja) * 2005-07-21 2009-01-22 エヌエックスピー ビー ヴィ 磁気ｒｏｍ情報媒体

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 (de) * 1969-02-24 1970-11-27 Eastman Kodak Co
FR2069355A5 (de) * 1969-11-14 1971-09-03 Emi Ltd
FR2162608A1 (de) * 1971-12-09 1973-07-20 Basf Ag

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5447606A (en) * 1977-09-22 1979-04-14 Hitachi Ltd Production of magnetic recording media
FR2408890A1 (fr) * 1977-11-10 1979-06-08 Transac Dev Transact Automat Procede et dispositif d'orientation et de fixation dans une direction determinee de particules magnetiques contenues dans une encre polymerisable

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 (de) * 1969-02-24 1970-11-27 Eastman Kodak Co
FR2069355A5 (de) * 1969-11-14 1971-09-03 Emi Ltd
FR2162608A1 (de) * 1971-12-09 1973-07-20 Basf Ag

Also Published As

Publication number Publication date
NL8100802A (nl) 1981-09-16
GB2069371B (en) 1983-11-02
JPS56117336A (en) 1981-09-14
DE3106228A1 (de) 1981-12-10
FR2476362B1 (de) 1985-01-25
JPH0156452B2 (de) 1989-11-30
DE3106228C2 (de) 1990-05-17
GB2069371A (en) 1981-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse