FR2203131B1 - - Google Patents

Info

Publication number
FR2203131B1
FR2203131B1 FR7330995A FR7330995A FR2203131B1 FR 2203131 B1 FR2203131 B1 FR 2203131B1 FR 7330995 A FR7330995 A FR 7330995A FR 7330995 A FR7330995 A FR 7330995A FR 2203131 B1 FR2203131 B1 FR 2203131B1
Authority
FR
France
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.)
Expired
Application number
FR7330995A
Other languages
French (fr)
Other versions
FR2203131A1 (is
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2203131A1 publication Critical patent/FR2203131A1/fr
Application granted granted Critical
Publication of FR2203131B1 publication Critical patent/FR2203131B1/fr
Expired 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
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
    • H01F10/28—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
FR7330995A 1972-10-14 1973-08-22 Expired FR2203131B1 (is)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722250481 DE2250481C3 (de) 1972-10-14 1972-10-14 Verfahren zur Herstellung eines magnetischen Aufzeichnungsträgers

Publications (2)

Publication Number Publication Date
FR2203131A1 FR2203131A1 (is) 1974-05-10
FR2203131B1 true FR2203131B1 (is) 1976-11-19

Family

ID=5859060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7330995A Expired FR2203131B1 (is) 1972-10-14 1973-08-22

Country Status (4)

Country Link
JP (1) JPS5433522B2 (is)
DE (1) DE2250481C3 (is)
FR (1) FR2203131B1 (is)
GB (1) GB1379360A (is)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599161A (en) * 1976-07-15 1981-09-30 Matsushita Electric Ind Co Ltd Magnetic recording medium and method of making the same
JPS5389000A (en) * 1977-01-18 1978-08-04 Mitsubishi Metal Corp Abrasionnresisting magnetic alloy laminating sheet
US4271232A (en) * 1978-08-28 1981-06-02 International Business Machines Corporation Amorphous magnetic film
US4245008A (en) * 1978-10-30 1981-01-13 International Business Machines Corporation Corrosion resistant magnetic recording media
DE2909891A1 (de) 1979-03-14 1980-09-25 Basf Ag Magnetischer aufzeichnungstraeger
JPS5847738Y2 (ja) * 1980-05-07 1983-10-31 松下電工株式会社 小型電気機器の構造
US4376963A (en) * 1980-12-19 1983-03-15 International Business Machines Corporation Composite magnetic recording disk
CA1188796A (en) * 1981-04-14 1985-06-11 Kenji Yazawa Magnetic recording medium
JPS57191830A (en) * 1981-05-22 1982-11-25 Sony Corp Magnetic recording medium
JPS6080117A (ja) * 1983-10-11 1985-05-08 Hitachi Condenser Co Ltd 磁気記録媒体
JPH07118075B2 (ja) * 1986-09-01 1995-12-18 株式会社日立製作所 磁気デイスク用磁気記録媒体およびその製造法
US5316631A (en) * 1989-02-16 1994-05-31 Victor Company Of Japan, Ltd. Method for fabricating a magnetic recording medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228307B (de) * 1961-07-17 1966-11-10 Ibm Magnetischer Aufzeichnungstraeger mit einer Magnetschicht geringer Oberflaechenrauheit und hoher Koerzitivkraft
US3342632A (en) * 1964-08-05 1967-09-19 Ibm Magnetic coating
DE1439443B2 (de) * 1964-09-16 1972-01-13 Siemens AG, 1000 Berlin u. 8000 München Verfahren zur herstellung von magnetischen speichermatrizen
JPS4414770Y1 (is) * 1966-10-24 1969-06-24

Also Published As

Publication number Publication date
JPS4974911A (is) 1974-07-19
JPS5433522B2 (is) 1979-10-22
FR2203131A1 (is) 1974-05-10
GB1379360A (en) 1975-01-02
DE2250481B2 (de) 1980-10-30
DE2250481C3 (de) 1981-08-27
DE2250481A1 (de) 1974-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse